On the Red Planet, aurorae glow green because the charged particles collide with oxygen atoms high above Mars. They may be bright enough that astronauts on Mars could spot them with their naked eye. Here on Earth, it’s usually helpful to have a telescope or even a phone camera filter to really see the aurora.

Google expanded its online mapping service to a third celestial body last week with ASU's help. Programmers from ASU's Mars Space Flight Facility worked with the search engine to load composite images of the Red Planet into Google Mars (mars.google.com).

This story was updated to correct inaccurate position of Mars and Earth. Mars will appear its biggest and brightest this month when it reaches its closest position to Earth while simultaneously being opposite the sun. The Red Planet will be at its ...

A new study may have revealed the true source behind how the Red Planet got its hue. It’s been long thought that Mars shines red due to the rusted iron minerals within the dust that covers the planet — but a study published Tuesday in the journal ...

TEMPE, Ariz. ­ A new planet-spanning Web site, Google Mars (mars.google.com) launches today on what would have been Mars astronomer Percival Lowell’s 151st birthday. At the heart of the new Web site lies a gigantic picture-puzzle image of Mars created ...

To transform Mars into a new bioengineered Eden for human colonists, scientists have resurrected sci-fi juggernaut Arthur Clarke as ArthurGPT to map out the mega-mission.