As long as the solar system has been around.
Mars is a plane, therefore it is not a living creature so it can't be alive. Anyways, Mars is believed to have been around for 4.6 billion yaers
Mars has been known for thousands of years. No particular "discoverer" is known.
1.8807 sidereal years .
jupiter or mars
no human has ever landed on mars however many many probes have been sent there
alot
1,789 years
There have not been any such discoveries on Mars.
mars has been a planet for about 4.6 million years.
Yes, Mars's ice caps are permanent.
1.88 Earth years or 687 Earth days. is how many years for mars to revolve
The idea of sending a man to Mars has been something that has been thought of for many years. In 2010, US President Barack Obama predicted that America would send a man or woman to Mars by 2030.
No humans have ever been to Mars. We hope to go there in the next 20 years.
Mars has been known for thousands of years. No particular "discoverer" is known.
Bruno Mars has never been in jail!
MANY
No manned missions to Mars have been sent, only unmanned ones.
1.8807 sidereal years .