Mars changed from a blue world with water to a red desert because its atmosphere escaped into space over billions of years.

Children at the Sylmar Branch Library were captivated by David Lehman, a volunteer NASA/JPL Solar System ambassador who knows a lot about Mars because he was a project manager at the Jet Propulsion ...

"Mars is still the Red Planet. It’s just that our understanding of why Mars is red has been transformed." When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

NASA is sending two spacecraft to Mars on their new ESCAPADE mission to reveal how space weather robbed it of its atmosphere and turned it dry ...

The story of the red planet, it turns out, may be due for a revision. At one time, experts thought that Mars was covered with fields of rocks with iron trapped inside. Somehow or other, and over a ...

President Donald Trump’s single reference to space in his second inaugural address Monday pointed in an unexpected direction. In his prepared remarks, Trump, a longtime backer of U.S.-led space ...

The Science of Siblings is a series exploring the ways our siblings can influence us, from our money and our mental health all the way down to our very molecules. We'll be sharing these stories over ...

A primitive ocean on Mars held more water than Earth’s Arctic Ocean, and covered a greater portion of the planet’s surface than the Atlantic Ocean does on Earth, according to new results published ...