Create app.py

app.py

@@ -0,0 +1,34 @@
+import streamlit as st
+
+# Planet gravity dictionary relative to Earth
+planet_gravity = {
+    "Mercury": 0.38,
+    "Venus": 0.91,
+    "Earth": 1.00,
+    "Moon": 0.166,
+    "Mars": 0.38,
+    "Jupiter": 2.34,
+    "Saturn": 1.06,
+    "Uranus": 0.92,
+    "Neptune": 1.19,
+    "Pluto": 0.06
+}
+
+# Streamlit UI
+st.set_page_config(page_title="Planetary Weight Calculator 🌌", layout="centered")
+st.title("🌍 Planetary Weight Calculator")
+st.write("Enter your weight on Earth and find out how much you'd weigh on other celestial bodies!")
+
+# User input
+earth_weight = st.number_input("Enter your weight on Earth (in kg):", min_value=1.0, step=0.5)
+
+if earth_weight:
+    planet = st.selectbox("Select a planet or celestial body:", list(planet_gravity.keys()))
+    calc_button = st.button("Calculate Weight")
+
+    if calc_button:
+        new_weight = earth_weight * planet_gravity[planet]
+        st.success(f"Your weight on **{planet}** would be **{new_weight:.2f} kg** 🪐")
+
+st.markdown("---")
+st.markdown("Created with ❤️ using Streamlit. Ready for space travel? 🚀")