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Even after nearly 3 years of loyal service, the Hubble Area Telescope continues to run and supply spectacular pictures of the universes. As one of NASA’s Excellent Observatories, its observations of far-off galaxies, exoplanets, and the growth of deep space have actually had an innovative influence on astronomy, astrop... | 0.842568 | 3.799767 |
These days, consumers can take their pick from an impressive array of fabulous items of diamond jewellery. For example, they can head online to select princess cut diamond engagement rings. All they need is a little spare time and a web connection.
As long as they know where to look, they should be able to find the per... | 0.830061 | 3.131329 |
In addition to James K's answer, many gases exist in the disk of material that forms into planets. What's a gas as opposed to a liquid or solid also depends on temperature and pressure. The most abundant "gases" in our solar-system are hydrogen, helium, CO2, H2O, CH4, NH3, N2, O2, CO, Neon (and maybe some others I've o... | 0.84813 | 3.922052 |
Crescent ♉ Taurus
Moon phase on 3 June 2035 Sunday is Waning Crescent, 26 days old Moon is in Taurus.Share this page: twitter facebook linkedin
Previous main lunar phase is the Last Quarter before 4 days on 30 May 2035 at 07:31.
Moon rises after midnight to early morning and sets in the afternoon. It is visible in the ... | 0.848363 | 3.100856 |
NASA's two Voyager spacecraft show nothing's simple at the edges of the solar system.
After a three-decade journey away from Earth, the two Voyager spacecraft are approaching the outer edges of the solar system. To scientists' surprise, the satellites have revealed a region vastly different than previously modeled. The... | 0.841387 | 3.452901 |
(Inside Science) -- Terrestrial animals may owe a special debt to the sun and the moon. It may have been their combined pull on ancient Earth's oceans that helped primitive air-breathing fish gain a toehold on land, new research suggests.
In a new study, published in the journal Proceedings of the Royal Society A, phys... | 0.872629 | 3.123281 |
By Sam Wilkinson
There are a couple of man-made objects in space that almost everyone will know about: the International Space Station, the Hubble Space Telescope, Mars Science Laboratory Curiosity and maybe Voyager I and/or II. However, there is so much other man-made stuff in space it’s crazy (and it’s actually start... | 0.878362 | 3.604311 |
The Dark Side of the Universe
by Jan Smit and Renske Smit
To put us, as book reviewers, in context, like many scientists, we study our surroundings in an effort to understand where we came from. Jan, the historical geologist, likes to begin with the birth of our solar system 4.56 billion years ago. Before that, in his ... | 0.905366 | 3.635978 |
I am looking for basic data regarding red-shifting that comes with reliable measure of distance of the emitting star.
Red shift is usually measured for galaxies rather than individual stars. Unless a star has just gone supernova, it's usually not bright enough to be seen even w the world's most powerful telescopes at t... | 0.875891 | 3.468853 |
Behold: Arp 273 – a great interstellar battle featuring upper galaxy UGC 1810 and its smaller collisional neighbour UGC 1813. War is hell. To wit:
The overall shape of the UGC 1810 — in particular its blue outer ring — is likely a result of wild and violent gravitational interactions. The blue colour of the outer ring ... | 0.819331 | 3.220063 |
This image illustrates the four common states of matter: solid, liquid, gas, and plasma.
States of Matter
This figure shows the four common states of matter: solid, liquid, gas, and plasma.
Consider water as an example. Solid water is ice. Liquid water is, well, water. We call water in its gaseous form "water vapor". A... | 0.828283 | 3.185242 |
DIALLING, sometimes called gnomonics, is a branch of applied mathematics which treats of the construction of sun-dials, that is, of those instruments, either fixed or portable, which determine the divisions of the day by the motion of the shadow of some object on which the sun's rays fall.
It must have been one of the ... | 0.838979 | 3.251505 |
Something abnormal is cruising toward us. Something little and cold and uncommonly quick. Nobody knows where it originated from, or where it is going. However, it’s not from around here. This is an interstellar comet – an old chunk of ice and gas and residue, framed on the solidified edges of a far off star, which some... | 0.885939 | 3.158974 |
In newly released footage from the University of Western Ontario, a bright, slow-moving fireball was captured in the skies near Toronto, Canada on December 12, 2011 by remote cameras watching for meteors. Although this meteor looks huge as it burns up in Earth’s atmosphere, astronomers estimate the rock to have been no... | 0.808608 | 3.192801 |
Authors: GRAVITY Collaboration: S. Lacour, M. Nowak, J. Wang, et. al.
First Author’s Institution: LESIA, Observatoire de Paris, Universite PSL, CNRS, Sorbonne Universite, Univ. Paris Diderot, Max Planck Institute for Extraterrestrial Physics
Status: Published in Astronomy & Astrophysics [closed access] and arXiv [open ... | 0.855538 | 3.987376 |
Does a permanently shadowed crater at the Moon’s South Pole harbor frozen water? Enough to supply a lunar outpost? How much ultraviolet and cosmic radiation would astronauts be exposed to if they stayed on the moon for a week or longer? Where are the best—and worst—landing sites on the Moon? These are some of the quest... | 0.85434 | 3.810709 |
Questions about electron degenerate stellar remnants.
A white dwarf, also known as a degenerate dwarf, is a type of stellar remnant. It forms from the pressured core during the death of medium stars not capable of exerting enough gravity to overcome electron resistance. White dwarfs have masses on average of about 0.5 ... | 0.823374 | 3.299677 |
Where there once was 158, there is now more… Globular clusters, that is. Thanks to ESO’s VISTA survey telescope at the Paranal Observatory in Chile, the Via Lactea (VVV) survey has cut through the gas and dust of the Milky Way to reveal the first star cluster that is far beyond our center. But keep your eyes on the pri... | 0.805851 | 3.065912 |
Scientists using the MeerKAT radio telescope have discovered a unique and previously-unseen flare of radio emission from a binary star in our galaxy.
The MeerKAT radio telescope in the Northern Cape of South Africa has discovered an object which rapidly brightened by more than a factor of three over a period of three w... | 0.826089 | 3.919302 |
The Little Ice Age was a period of cooling that occurred after the Medieval Warm Period. Although it was not a true ice age, the term was introduced into scientific literature by François E. Matthes in 1939, it has been conventionally defined as a period extending from the 16th to the 19th centuries, but some experts p... | 0.837082 | 3.445516 |
Billions of years ago, Earth’s magnetic field may have gotten a jump-start from a turbulent magma ocean swirling around the planet’s core.
Our planet has generated its own magnetism for almost its entire history (SN: 1/28/19). But it’s never been clear how Earth created this magnetic field during the planet’s Archean E... | 0.840818 | 3.836205 |
According to ancient and medieval science, aether (//), also spelled æther or ether and also called quintessence, is the material that fills the region of the universe above the terrestrial sphere. The concept of aether was used in several theories to explain several natural phenomena, such as the traveling of light an... | 0.836825 | 3.811504 |
Be the first pioneers to continue the Astronomy Discussions at our new Astronomy meeting place...
The Space and Astronomy Agora
|What I Found
Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To
Posted by Jessica Lynn on January 22, 2000 15:29:09 UTC
: : 1. What is a black hole? A black hole ... | 0.921035 | 3.557888 |
The NASA Chromospheric Layer Spectropolarimeter-2 ,or CLASP-2 sounding rocket mission, was successfully conducted on April 11 from the White Sands Missile Range in New Mexico, launched aboard a NASA Black Brant IX sounding rocket at 12:51 p.m. EDT — the CLASP-2 payload flew to an altitude of 170 miles before descending... | 0.807919 | 3.899808 |
In just over one weeks time, Mercury will pass in front of the Sun. Although Mercury only covers 0.004% of the surface of the Sun, this is a rare event and hence worthwhile to have a closer look at, although you should, of course, never “look” at the Sun directly without proper protection.
As only one of three bodies i... | 0.863486 | 3.256135 |
The next NASA mission to Mars, the InSight lander, will include some additional experimental technology: the first deep-space CubeSats. Two small CubeSats will fly past the planet as the lander is descending through the atmosphere; this will be the first time CubeSats have been used in an interplanetary mission.
If all... | 0.869931 | 3.442679 |
As intelligent as we are, as human’s we aren’t endowed with the most powerful of eyes. Sure, most of us can see the full glory of the ROYGBIV rainbow, but, it requires special devices for us to perceive specific frequencies of the electromagnetic spectrum.
Indeed, perception plays a big part of the entire equation. As ... | 0.827642 | 3.57465 |
NASA’s Juno probe arrived at Jupiter and performed orbital insertion on Independence Day in 2016 after a five-year journey from Earth. Shortly after orbital insertion, planetary observation commenced, and it continues to study the massive planet’s properties today.
Juno is helping NASA learn more about Jupiter’s magnet... | 0.853859 | 3.097407 |
A large asteroid visits our fair corner of the solar system this week, and with a little planning you may just be able to spot it.
Near Earth Asteroid (NEA) 285263 (1998 QE2) will pass 5.8 million kilometres from the Earth on Friday, May 31st at 20:59 Universal Time (UT) or 4:59PM EDT. Discovered in 1998 during the LIn... | 0.817581 | 3.643364 |
SOFIA – Facts About NASA’s Flying Infrared Telescope ✈
Big Eye In The Sky On The Sky!
The Stratospheric Observatory for Infrared Astronomy (SOFIA) is an airborne 2.5m (8.2 ft) telescope which conducts infrared observations from the back of a modified Boeing 747 Jumbo jet. SOFIA is a joint project of NASA and the German... | 0.846018 | 3.524075 |
NASA measures water loss of an interstellar comet for the first time
We don’t get all that many visitors in our quiet corner of the galaxy. In fact the comet 2I/Borisov is only the second interstellar visitor we’ve welcomed to our solar system, following ‘Oumuamua in 2017. Despite whizzing around the Sun at 100,000 mph... | 0.900015 | 3.89183 |
Washington: The US space agency NASA is planning to send a small satellite about the size of a briefcase -- also known as a CubeSat which will use lasers for the first time to detect naturally occurring surface ice believed to be at the bottom of craters on the Moon that have never seen sunlight.
Called Lunar Flashligh... | 0.805057 | 3.407408 |
Last week the robotic Dawn spacecraft ended its year-long mission to asteroid Vesta, becoming the first spacecraft ever to visit this far off world located between Mars and Jupiter, in the Solar System’s main asteroid belt. …
Vesta shows evidence of being a leftover from the early years of our Solar System, a building ... | 0.854507 | 3.021718 |
As per the latest research, scientists have now revealed that the Sun, which appears to be the same every day to us, is in fact, changing over time. The scientists have long known this fact as they use properly-filtered telescopes which helps them understand the difference each time they look at the Sun. These filtered... | 0.828487 | 3.538938 |
Super-Earth discovered around the second nearest stellar system
An international team finds an exoplanet with three times the mass of the Earth around the red dwarf Barnard, the closest star to the Sun after the Alpha Centauri system
The team has used observations taken in 18 years combined with the CARMENES planet-hun... | 0.829597 | 3.881018 |
RS Ophiuchi is a famous recurrent nova.
Recently it had an outburst, brightening from magnitude 11 (hundred times fainter than faintest star visible to the naked eye) to fifth magnitude - faint but visible to the naked eye.
Novae have been known for centuries. They are a "new stars", appearing in the sky where no star ... | 0.890288 | 4.024468 |
The bright stars of the Summer Triangle shine from high in the southern skies during the evenings in September. Three bright stars — Vega, Deneb, and Altair — that are actually part of the their own constellations, mark the “corners” of the triangle. Deneb is one of the brightest stars in the sky. Shining with the brig... | 0.840034 | 3.571644 |
ann12042 — Annonce
ALMA Telescope Upgrade to Power New Science
5 juin 2012
Before its construction is even completed, the new telescope ALMA — the Atacama Large Millimeter/submillimeter Array — is embarking on an upgrade that will help astronomers investigate the earliest galaxies and search for water in other planetar... | 0.824821 | 3.595091 |
100 years ago today, on Thursday, November 25th, 1915, Albert Einstein presented his General Theory of Relativity. After having been working on it for eight years he finished one of the most beautiful and robust scientific theories.
In these 100 years, the theory has passed from not being accepted at first, to not havi... | 0.81023 | 3.84761 |
Swirling bands of eroded, layered rock, reminiscent of the edges of Alaskan ice sheets, and an array of light and dark mottled patterns blanket the frigid floor of Mars' south pole, where NASA's newly named Mars Polar Lander will touch down in late 1999.
The new images of the landing zone for the Mars Polar Lander, tak... | 0.802344 | 3.811078 |
Is Planet 9 really a black hole?
(10 October 2019)
Is there a black hole in our solar system?
Physicists have speculated that the orbits of huge chunks of rock and ice in the outer solar system might have been influenced by a new planet called Planet 9.
It’s thought that Planet 9 could have a mass five to 20 times bigg... | 0.803211 | 3.337919 |
Welcome back to Messier Monday! In our ongoing tribute to the great Tammy Plotner, we take a look at Messier 26 open star cluster. Enjoy!
Back in the 18th century, famed French astronomer Charles Messier noted the presence of several “nebulous objects” in the night sky. Having originally mistaken them for comets, he be... | 0.911995 | 3.827733 |
One of the greatest successes in the recent Italian scientific history, BeppoSAX (Satellite for Astronomy X, "Beppo" like the nickname of the Italian astronomer Giuseppe Occhialini, one of the pioneers in the study of cosmic rays) was born from a cooperation between the Italian Space Agency (ASI) and the Netherlands Ag... | 0.873736 | 4.078098 |
Chances are good that you’ve thought about the concept of gravity once or twice. If you’ve ever taken a high school physics class, you might have heard that gravity is an invisible force that is responsible for keeping you planted on the earth. At the beginning of the 20th century, the young Albert Einstein was also in... | 0.827652 | 4.127752 |
Until that is, you notice that in its center is a towering fountain of gas spewing from its core, looking very much like flames licking out into space.
Sounds cool, right? Yeah, it’s actually way cooler than that. It’s not a fountain: it’s actually a pair of enormous bubbles, vast shells of gas being inflated by some r... | 0.845634 | 4.022352 |
Although the primary purpose of Deep Space 2 is to test new technologies for use in future science missions,
the two probes are also miniature data-gathering laboratories. The probes will penetrate the south polar
layered deposits of Mars near the landing site of the Mars Polar Lander. These layered deposits are believ... | 0.813895 | 3.856669 |
The super Map of Dark Matter
Exploiting the effect of the gravitational lens and the power of the instrumentation of the Space Telescope, a team of scientists has managed, a few years ago, to reconstruct the distribution of dark matter in the cluster of galaxies called Abell 1689 with unprecedented detail.
A few years ... | 0.887386 | 4.14924 |
July 4th is a special date in American history, and this year it will, for space exploration enthusiasts be doubly meaningful, as it will mark the point at which we have been examining and exploring Mars continuously for 20 years without a single break.
Of course, attempts to explore and understand Mars began much earl... | 0.840645 | 3.346768 |
There are plenty of ways Earth could go. It could smash into another planet, be swallowed by a black hole, or get pummelled to death by asteroids. There’s really no way to tell which doomsday scenario will be the cause of our planet’s demise.
But one thing is for sure - even if Earth spends the rest of its eons escapin... | 0.907158 | 3.193532 |
Celebration of Space - April 10, 2020
This coming Sunday, April 12, 2020 is the date of Easter for this year. Regardless of how you feel about the Easter holiday, we are sure you have noticed that it doesn’t fall on the same day each year, like many of the other yearly holidays. This is because the date of the Easter h... | 0.837183 | 3.269109 |
An international team of astronomers, including Professor Tom Marsh and Dr Danny Steeghs from the University of Warwick, have shown that the two stars in the binary HM Cancri definitely revolve around each other in a mere 5.4 minutes. This makes HM Cancri the binary star with by far the shortest known orbital period. I... | 0.875486 | 3.872186 |
From the ESA/HUBBLE INFORMATION CENTRE
Astronomers have discovered that the well-studied exoplanet WASP-12b reflects almost no light, making it appear essentially pitch black. This discovery sheds new light on the atmospheric composition of the planet and also refutes previous hypotheses about WASP-12b’s atmosphere. Th... | 0.853642 | 3.826849 |
Astronomers using NASA's Spitzer Space Telescope have discovered carbon molecules, known as "buckyballs," in space for the first time. Buckyballs are soccer-ball-shaped molecules that were first observed in a laboratory 25 years ago.
They are named for their resemblance to architect Buckminster Fuller's geodesic domes,... | 0.882256 | 3.978602 |
Utterly unkillable tardigrades will live to see our Sun die
In about 5 billion years' time, our Sun will use up its reserves of hydrogen and begin to cool down and expand, cooking the Earth in a miasma of heat and radiation. Given our current trajectory, humans will probably be long gone by then anyway, but at least on... | 0.877019 | 3.033139 |
Stephen Hawking, like David Attenborough, believes earthlings are in for some tough times ahead. Hawking has said he thinks it’s “almost certain” that some kind of catastrophe like global warming or nuclear war will ravage earth within the next millennium, and thus, it’s “essential” that we start exploring our space co... | 0.922018 | 3.688736 |
In a random sky survey made in near-infrared light, Hubble found five tiny galaxies clustered together 13.1 billion light-years away. They are among the brightest galaxies at that epoch and very young -- existing just 600 million years after the big bang.
The composite image taken in visible and near-infrared light, re... | 0.890937 | 4.03144 |
A comet recently spewed out a cluster of mini comets in ahuge outburst that was the largest ever witnessed by astronomers.
A team of researchers began observing the comet17P/Holmes in October 2007, after it was reported that the object, about2.2 miles wide (3.6 km wide), had brightened by a million times in less than a... | 0.815234 | 3.797436 |
The WISE (Wide-field Infrared Survey Explorer) mission isn’t wasting any time in making observations and releasing images. Already the new infrared observatory has spied its first comet and first near Earth asteroid, and today released a “sweet” collection of eye candy from across the universe. “We’ve got a candy store... | 0.914951 | 3.950669 |
Joseph Hooton Taylor, Jr. (born March 29, 1941) is an American astrophysicist and winner of the 1993 Nobel Prize in Physics, shared with his former student Russell Alan Hulse, for the discovery of a new type of pulsar, a discovery that has opened up new possibilities for the study of gravitation.
Taylor was born in Phi... | 0.879276 | 3.842167 |
For the first time, astronomers have found two giant clusters of galaxies that are just about to collide. This observation can be seen as a missing 'piece of the puzzle' in our understanding of the formation of structure in the Universe, since large-scale structures--such as galaxies and clusters of galaxies--are thoug... | 0.809781 | 4.04609 |
Tonight, there will be a special astronomical event. The November “supermoon” is going to be especially close to Earth. This is going to offer an extraordinary sight. Regular skywatchers or those who simply want to see something special can look to the sky tonight. This full moon is special because it is going to be bi... | 0.856136 | 3.500945 |
This news release from the Max Planck Institute describes evidence that supports the existence of gravitational waves, which at least one blogger here has insisted do not exist.
Dr. Mona Clerico
Max Planck Institute for Astrophysics
and Max Planck Institute for extraterrestrial Physics
Phone +49 89 30000-3980
Dr. Stefa... | 0.844206 | 3.746112 |
BOOMERanG Analysis Finds Flat Universe
December 12, 1999
Newly released data from the 1997 North American test flight of BOOMERanG, which mapped anisotropies in the cosmic microwave background radiation (CMB) in a narrow strip of sky, show a pronounced peak in the CMB "power spectrum" at an angular scale of about one d... | 0.835153 | 3.957151 |
When you look up at the night sky, all of the stars look the same. However, they actually come in different sizes and colours. The colour of the star depends on the temperature of the surface of the star. Despite what you may think, blue stars are much hotter than red stars! In fact, red stars are the coldest! The smal... | 0.841776 | 3.127814 |
Black hole rethink after 11-year cosmic search fails to detect gravitational waves
One hundred years since Einstein proposed gravitational waves as part of his general theory of relativity, an 11-year search performed with CSIRO’s Parkes telescope has shown that an expected background of waves is missing, casting doubt... | 0.852691 | 4.012248 |
A strange stellar pair nearly 7,000 light-years from Earth has provided physicists with a unique cosmic laboratory for studying the nature of gravity. The extremely strong gravity of a massive neutron star in orbit with a companion white dwarf star puts competing theories of gravity to a test more stringent than any av... | 0.884134 | 3.588932 |
Do you remember what we talked about in the Article Thermal Control in Space? In this article we made a general introduction to thermal control, applied not only in space but in several fields. However, now we go a little step forward by describing the main heat sources that affect a spacecraft during its mission in th... | 0.826026 | 3.841845 |
So this may be an incorrect assumption, but from my knowledge solar systems are heliocentric and there are always suns. (I realize to be a solar system there must be a sun semantically.) But it seems to me that planets and stars are just bodies of mass, so are there cases of solar systems where the star is just one of ... | 0.840644 | 3.635995 |
March 30, 2020
In an Electric Universe, galaxies evolve because large-scale plasma discharges form Birkeland currents.
To those familiar with ideas like electricity in space, the cosmos appears to be interlaced with electric circuits made up of energized filaments at every scale. At the largest scale, there are electro... | 0.804379 | 4.057686 |
The first ever infrared analysis of the atmosphere of Neptune’s moon Triton revealed the presence carbon monoxide and methane. As summer hit the moon’s southern hemisphere, observations made at the Very Large Telescope (VLT) based at the European Southern Observatory (ESO) showed the thin atmosphere to vary with season... | 0.905964 | 4.02219 |
Stars are enormous balls of hot gas located many trillions of miles away, but when they're observed from the Earth, they appear as tiny shining dots visible in the night sky. In a new study, astronomers made a precise measurement of the mass of a nearby "white dwarf," a star that has reached the end of its life cycle. ... | 0.895521 | 3.98929 |
The SilEye experiment aims to study the cause and processes related to the anomalous Light Flashes (LF) perceived by astronauts in orbit and their relation with Cosmic Rays. These observations will be also useful in the study of the long duration manned space flight environment. Two PC-driven silicon detector telescope... | 0.834578 | 3.042041 |
There's chaos in the night sky, about 60 to 600 miles above Earth's surface. Called the ionosphere, this layer of Earth's atmosphere is blasted by solar radiation that breaks down the bonds of ions. Free electrons and heavy ions are left behind, constantly colliding.
This dance was previously measured through a method ... | 0.844183 | 3.869145 |
Space Rock Families (06:22)
Collisional families are groups of objects that are similar in size, shape, and tilt as they orbit the sun. A massive object in the Kuiper Belt collides and breaks into fragmented pieces that become members of the same collisional family.
Comets: Icy Rocks with Tails (04:38)
Objects in the K... | 0.929338 | 3.367566 |
In astronomy, a deep field is an image of a portion of the sky taken with a very long exposure time, in order to detect and study faint objects. The depth of the field refers to the apparent magnitude or the flux of the faintest objects that can be detected in the image. Deep field observations usually cover a small an... | 0.87081 | 3.07364 |
It’s been about three months since that infamous meteor broke up over Chelyabinsk, Russia. In that time, there’s been a lot of conversation about how we can better protect ourselves against these space rocks with a potentially fatal (from humanity’s perspective) gravitational attraction to Earth.
This week, the Europea... | 0.844417 | 3.326552 |
Where is the interface between the cosmos and planet Earth? Everywhere. Watching birds fly across the shiny coin of the Harvest Moon last night was but one example. Every September anyone with a telescope magnifying 30x and up who happens to look at the full moon can’t help but notice the occasional silhouettes of migr... | 0.852414 | 3.422978 |
The MAGIC and CTA telescopes enable scientists to study gamma radiation in the universe. Gamma rays have the highest energy of the whole electromagnetic spectrum. They are produced along with the cosmic radiation that constantly strikes the Earth's atmosphere - and scientists have been trying to elucidate their origin ... | 0.865698 | 4.185237 |
After a 9 month journey, NASA’s Mars Science Laboratory (MSL) rover has successfully landed on Gale Crater, Mars as of 5:32 UTC.
“The Seven Minutes of Terror has turned into the Seven Minutes of Triumph,” said NASA Associate Administrator for Science John Grunsfeld, referring to the novel and risky landing system that ... | 0.818826 | 3.369244 |
eso1144 — Science Release
Lutetia: a Rare Survivor from the Birth of the Earth
11 November 2011
New observations indicate that the asteroid Lutetia is a leftover fragment of the same original material that formed the Earth, Venus and Mercury. Astronomers have combined data from ESA’s Rosetta spacecraft, ESO’s New Techn... | 0.895761 | 3.821799 |
(Inside Science) -- It may the biggest and oldest question in science: Are we alone in the universe?
If the answer is no, a second question arises: Who else is out there?
Such questions have motivated a decades-long search for radio and light signals from intelligent beings on other planets. In a recent paper, Duncan F... | 0.864258 | 3.188782 |
Perhaps the greatest and most fiercely contested race in modern science is the search for dark matter.
Physicists cannot see this stuff, hence the name. However, they infer its existence because they can see its gravitational influence on the structure of galaxies and clusters of galaxies. It implies that the universe ... | 0.878732 | 3.927773 |
A supernova is the colossal explosion that marks the end stages of the life of a giant star. Cosmologists use Type Ia supernovae as cosmic distance markers given the extreme uniformity of their light curves. Supernovae have been fundamental to discovering and studying the properties of dark energy.
Members of the Cosmo... | 0.805974 | 3.261175 |
It may look like an out of focus picture of a luminous glazed donut, but it is actually the first successfully obtained image of a black hole, larger than our own solar system. The sound you’re about to hear after what I say next is the collective groaning despair of astronomers: How do we understand this astrologicall... | 0.821743 | 3.510333 |
Measures of exoplanet bulk densities indicate that small exoplanets with radius less than 3 Earth radii (R⊕) range from low-density sub-Neptunes containing volatile elements1 to higher-density rocky planets with Earth-like2 or iron-rich3 (Mercury-like) compositions. Such astonishing diversity in observed small exoplane... | 0.842413 | 3.914586 |
A star already known to host five alien planets may actually be home to a whopping nine full-fledged worlds - a planetary arrangement that, if confirmed, would outnumber our own solar system and set a new record for the most populated system of extrasolar planets yet found.
The sun-like star, called HD 10180, is locate... | 0.918734 | 3.618884 |
A feature resembling a candy cane appears at the center of this colorful composite image of our Milky Way galaxy's central zone. But this is no cosmic confection. It spans 190 light-years and is one of a set of long, thin strands of ionized gas called filaments that emit radio waves.
This image includes newly published... | 0.874968 | 3.957875 |
Juno Spots, new circulating cyclone at the Jupiter South Pole: NASA’s Juno spacecraft spied on the new Jovian cyclone on November 3, 2019, during the 23rd Scientific Pass of the gas giant. Juno was launched on August 5, 2011, which included an ambitious mission to see Jupiter under dense clouds. On July 4, 2016, the pr... | 0.908286 | 3.635893 |
Astronomers have announced that they have detected molecular oxygen in a galaxy that’s about half a billion light-years away from our galaxy. This is an important discovery because it’s only the third time astronomers have detected molecular oxygen outside of our solar system, and the first time it has been detected ou... | 0.871319 | 3.612335 |
Checking out the spin rate on a supermassive black hole is a great way for astronomers to test Einstein’s theory under extreme conditions – and take a close look at how intense gravity distorts the fabric of space-time. Now, imagine a monster … one that has a mass of about 2 million times that of our Sun, measures 2 mi... | 0.875801 | 4.07166 |
"What do we need to know about to discover life in space?"
How can we estimate the number of technological civilizations that might exist among the stars? While working as a radio astronomer at the National Radio Astronomy Observatory in Green Bank, West Virginia, Dr. Frank Drake conceived an approach to bound the term... | 0.888011 | 3.019067 |
Minor Planet Center
The Minor Planet Center (MPC) is the official worldwide organization in charge of collecting observational data for minor planets (such as asteroids), calculating their orbits and publishing this information via the Minor Planet Circulars. Under the auspices of the International Astronomical Union (... | 0.876355 | 3.689113 |
- Open Access
Earth, Planets and Space volume 65, Article number: 16 (2013)
For dust you are and to dust you will return
Dust exists everywhere—in inter- and circum-planetary, inter- and circum-stellar, and even intergalactic, space—since its first creation in the Universe. The first generation of cosmic dust must have... | 0.884291 | 3.909978 |
CAMBRIDGE, Mass. — For the first time, researchers have discovered three potentially habitable, Earth-like worlds orbiting an ultracool dwarf star 40 light-years away in another star system, according to a study published in the journal Nature.
The ultracool dwarf star, known as TRAPPIST-1, isn’t the kind of star scien... | 0.882402 | 3.878105 |
Atmospheric drag on the motion of satellites
Atmospheric drag could slow down the motion of a satellite when its orbit is low enough to be affected by the friction of Earth's atmosphere. A low Earth-orbiting satellite is often placed just above the Earth's atmosphere (Fig.1), where there is almost no air to drag on the... | 0.809234 | 3.615823 |
Since landing at Gale crater, Mars, in August 2012, the Curiosity rover has searched for evidence of past habitability, such as organic compounds, which have proved elusive to previous missions. We report results from pyrolysis experiments by Curiosity’s Sample Analysis at Mars (SAM) instrument, focusing on the isotopi... | 0.855348 | 3.737403 |
In what might be a evidence of planetary billiards, astronomers have found an exoplanet with an extremely odd orbit. The question is, was this planet the cue ball or the object ball? While most planets orbit around a star’s mid-section, this one – called XO-3b — is tilted about 37 degrees from the star’s equator. It’s ... | 0.882264 | 3.948348 |
This article was first published in The Tablet in December, 2005. I also ran it a year ago on this blog, before many of you became regular readers... and before I knew how to embed pictures. So I am running it again, with pictures this time.
Every December, along with the Christmas rush and the endless round of holiday... | 0.904307 | 3.383072 |
Pluto, which is only about two-thirds the size of our moon, is a cold, dark and frozen place. Relatively little is known about this tiny planet with the strange orbit. Its composition is presumed to be rock and ice, with a thin atmosphere of nitrogen, carbon monoxide and methane. The Hubble Space Telescope has produced... | 0.868122 | 3.819791 |
Two luminous eyes and a mouth stretched in a smile — such a telescope was found in distant space.
An unusual combination of cosmic structures found in the galaxy cluster SDSS J0952 + 3434. The “Smile of the Universe” image was captured using the WFC3 camera of the Hubble telescope.
There is nothing unusual in this comb... | 0.880906 | 3.159823 |
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