🪐Planetary MotionNASA Planetary Fact Sheet
A Day on Venus Is Longer Than Its Year
Venus spins so slowly on its axis that a single Venusian day lasts longer than its entire orbit around the Sun.
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10 Verified Fact Cards
🪐 Space
Verified astronomical discoveries from black holes and exoplanets to cosmic dust and time dilation.
All Verified Discoveries in Space
🧲AstrophysicsNASA Goddard Space Flight Center
A Magnetar's Magnetic Field Stretches Atoms into Thin Needles from 1,000 Kilometers Away
A magnetar's magnetic field is so extreme that even 1,000 kilometers away, spherical electron clouds around atoms are deformed into needle-thin cylinders.
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🌧️Planetary ScienceNASA Solar System Exploration
Raindrops on Saturn's Moon Titan Fall 6 Times Slower Than on Earth, Drifting Like Snowflakes
Because Titan has thicker nitrogen air and just 14% of Earth's gravity, giant liquid methane raindrops drift gently downward about 6 times slower than Earth rain.
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👩🚀Lunar ScienceNASA Apollo Archive
Footprints on the Moon Can Last Millions of Years
The bootprints left by Apollo astronauts on the Moon in 1969 remain virtually untouched to this day.
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☀️Solar SystemNASA Solar System Exploration
The Sun Holds 99.86% of Our Solar System's Mass
Combined together, Earth, Jupiter, Saturn, and every asteroid account for only 0.14% of the Solar System's total mass.
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🛰️Space EngineeringEuropean Space Agency (ESA)
Two Clean Metals Automatically Fuse in Space
If two pieces of the same bare metal touch in the vacuum of space, they permanently fuse together without heat or glue.
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🌌AstrochemistryMax Planck Institute for Radio Astronomy
A Giant Space Cloud Contains the Molecule Behind Raspberry Flavor
Astronomers detected ethyl formate—the chemical compound giving raspberries their aroma—inside a vast dust cloud near the Milky Way's center.
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🪐Planetary PhysicsNASA Saturn Fact Sheet
Saturn Has a Lower Average Density Than Liquid Water
Despite being 95 times Earth's mass, Saturn's average density is just 0.687 g/cm³—meaning it's theoretically light enough to float in water.
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🔭Martian OpticsNASA Mars Curiosity Observations
Sunsets on Mars Appear Blue, Not Red
While Earth has fiery red sunsets, dusk on the Red Planet turns the sky around the setting Sun a cool shade of blue.
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🚀Interstellar ExplorationNASA Jet Propulsion Laboratory
Voyager 1 Still Phones Home From Over 24 Billion Kilometers Away
Launched in 1977, Voyager 1 is cruising through interstellar space—so far out that its radio signals take over 22 hours to reach Earth.
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