The U.S. President wants to put humans on Mars "at worst" by his second term.
NASA is working on reducing the estimated cost for the "Journey to Mars" mission.
Budget and technical challenges will delay the launch of Orion Spacecraft for the Mars mission.
MAVEN spacecraft detected electrically charged metal atoms in the ionosphere of Mars.
Why could Mars not have sustained life, unlike the planet Earth, in which they had almost the same atmospheric pressure of air in the past?
Impact crater on Mars caused by asteroid and tsunamis, new study shows.
Martian slopes in the mid-latitudes appear to have ice.
Study of dead Martian volcanoes indicates that the planet is highly similar to Earth.
Mars Curiosity rover's wheel threads started to break, yet it will continue its mission on the Red Planet.
Can humans survive in the hostile conditions of Mars?
Take a glimpse of the stunning topographic surface of the Red Planet in this new video.