The composition of mercury is solid as well as earth.
Mercury's atmosphere is extremely thin compared to Earth's. It is composed mostly of oxygen, sodium, hydrogen, helium, and potassium, but its overall density is about 100 trillion times less than Earth's atmosphere. Mercury's weak gravity isn't strong enough to retain a thick atmosphere like Earth's.
Mercurys mean radius is around 2,439.7 km, which is around 38.39% of earth radius or 0.3829 Earths. Mercurys mass is around 3.3022×10 to the 23 kg, around 5.5% of earths mass or 0.055 Earths.
Mercury's gravity is approx 40% of Earth's.
The size of Earth equals to 12,756 kilometers while Mercury's size is 4879 kilometers. Around 2.6 Mercuries would fit into Earth.
Mercury is 4,880 km in diameter, and Uranus is 51,152 km in diameter, so 10.2 mercurys equal the diameter of Uranus.
If Mercury's volume was compared with Earth's volume, then 18 Mercurys could fit inside the Earth.
The year on the planet Mercury is very short. A year on this planet lasts 88 days compared to 365 days on Earth.
you have to times it's mass
There are many things that make up Mercury's planet composition. There are many different minerals and clays on Mercury's surface.
Jupiter is about the size of 300 Earths put together.
Mercury's atmosphere is extremely thin compared to Earth's. It is composed mostly of oxygen, sodium, hydrogen, helium, and potassium, but its overall density is about 100 trillion times less than Earth's atmosphere. Mercury's weak gravity isn't strong enough to retain a thick atmosphere like Earth's.
Mercury rotates in about 58.65 Earth days.
Mercury is the smallest planet compared to the other ones
Venus is often compared as Earth's "sister planet", being similar in size and internal composition.
It is approx 4223 Earth-hours = 176 Earth-days long.
It is approx 88 earth-days.
One day on Mercury is equal to 1407.6 Earth hours.