Scientists have not yet proven that Mars can currently support life as we know it on Earth. Based on data from the NASA Exploration Rover, Mars may have been able to support life approximately 4 billion years ago.Continue Reading
Mars is the closest planet to Earth, but it has different conditions. Mars is very cold, by Earth's standards. It has an average surface temperature of -67 degrees Fahrenheit, and a range of -207 degrees F on the winter pole, to 80 degrees F during the day at the summer pole.
Scientist know from analyzing data from the Hubble Space Telescope, Viking Landers and Mars Global Surveyor that Mars has polar ice caps, but the frozen water is highly acidic. There is no fresh water on Mars. Additionally, Mars has a thin atmosphere with only trace amounts of oxygen.Learn more about Planets
As of 2014, it takes approximately 150 to 300 days for a spacecraft to travel from Earth to Mars. The time depends on the launch speed, how much fuel is used and the alignment of Earth and Mars.Full Answer >
The distance to Mars varies between the planet's closest approach to Earth at 35 million miles and the farthest distance at 140 million miles. In theory, it would take the fastest spacecraft ever built 39 days to reach Mars at its closest distance and 289 days at its most distant.Full Answer >
Much like Earth, it takes Mars about 24 hours 37 minutes to make a complete rotation. However, Mars takes 687 days to make a complete revolution around the sun.Full Answer >
Mars is similar to Earth in the fact that both planets have about the same amount of dry land surface. Both planets also have volcanoes and impact basins.Full Answer >