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.Know More
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
A person weighing 50kg (110lbs) on Earth would weigh 19kg (42 lbs) on Mars. This is because the gravitational force on Mars is only 38 percent that of the gravitational force on Earth.Full Answer >
A year on Mars is the equivalent of 687 Earth days or almost two years on Earth. The length of a year is determined by the amount of time it takes for a planet to make one complete orbit around the sun.Full Answer >
Mars is considerably less than 1 light-year away from Earth. According to Cornell University, Mars orbits the Sun at an average distance of 1.5 times the Earth's mean orbital distance. At the two planets' closest approach, the distance between them shrinks to 0.5 astral units, which equals 75 million kilometers.Full Answer >
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 >