Mercury is about 4.6 billion years old.
15 days to 2 hours
as long as the earth's been round!
No one has actually ever stepped or been on mercury as no microbe would survive the long journey.
yes
They have been round for hundreds of years
round 4 years
mercury is hotter Venus has long been considered the hottest planet due to the cloud cover and its creating an enormous greenhouse effect. I do not believe Mercury is hotter.
Mercury is definitely not perfectly round. All of our photos of Mercury show that it's covered in craters which cause ridges to form all over the planet. This means that it's not perfectly round.
what satellite moves round mecury and venus
Bread has been a round for a very long time. Long before WWII.
No one has every been to Mercury. The furthest man has been is to the Moon. Probes have been sent to Mercury