The Mars Rover found undisputed microfossils, proving life once existed on Mars.
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Venus’ rotation on its axis
Venus’ rotation on its axis
What did radar astronomers find in the polar regions of Merc…
What did radar astronomers find in the polar regions of Mercury?
The Moon’s composition is similar to Earth’s ________ .
The Moon’s composition is similar to Earth’s ________ .
The deepest depression found on the surface of Mars is the
The deepest depression found on the surface of Mars is the
Mars appears red due to __________ all over its surface rock…
Mars appears red due to __________ all over its surface rocks.
At which planet can the pole remain in darkness for 42 years…
At which planet can the pole remain in darkness for 42 years, then have 42 years of constant daylight?
All four Jovian magnetic fields are good examples of the dyn…
All four Jovian magnetic fields are good examples of the dynamo theory, with the magnetic fields aligned well with the planets’ rapid rotations.
Uranus has a larger fraction of methane in its atmosphere th…
Uranus has a larger fraction of methane in its atmosphere than Neptune.
Which planet had the Great Dark Spot in 1989, but had lost i…
Which planet had the Great Dark Spot in 1989, but had lost it by 1995?