Astrogeology is a branch of astronomy that focuses on the geology of celestial bodies, including planets, moons, asteroids, and comets.

Venus has over 1,600 active volcanoes, more than any other planet in our solar system.

Valles Marineris is a canyon system on Mars that stretches for over 4,000 kilometers and is up to 7 kilometers deep.

Jupiter's moon Ganymede is the largest moon in our solar system, and is even larger than the planet Mercury.

Hellas Planitia is a giant impact crater on Mars that is over 2,100 kilometers in diameter and 7 kilometers deep.

Saturn is famous for its prominent rings, which are made up of ice particles and dust.

Olympus Mons is a volcano on Mars that is over 21 kilometers high and 600 kilometers wide, making it the largest mountain in the solar system.

Venus has the longest day of any planet in our solar system, lasting over 243 Earth days.

There are no oceans on any planet in our solar system that are comparable in size to the oceans on Earth.

Enceladus, a moon of Saturn, is known for its geysers that erupt from its icy surface.

Jupiter is the largest planet in our solar system, with a mass over twice that of all the other planets combined.

Jupiter has the most moons of any planet in our solar system, with over 79 known moons.

Proxima Centauri is the closest star to our solar system, located just over 4 light-years away.

Saturn is known for its distinctive hexagonal-shaped storm at its north pole, which is known as the 'Saturn Hexagon'.

IC 1101 is the largest galaxy in the observable universe, with a diameter of over 6 million light-years.