Scientists are still trying to understand what causes Mars' myriad dark streaks, and what these features might mean for the possible existence of Red Planet life.

For future deep-space missions, NASA wants to reduce the mass of its spacecraft by 40 percent. To do it, they'll need ultra-lightweight (ULW) materials. Today, the Agency announced its selection of three proposals that will develop and manufacture these materials "for future aerospace vehicles and structures."

Zero-gravity sex presents many challenges. But on Mars, the science of getting it on could be with us

Nasa's Curiosity rover has found that water can exist as a liquid near the Martian surface.

Mars has liquid water just below its surface, according to new measurements by Nasa’s Curiosity rover. Until now, scientists had thought that conditions on the red planet were too cold and arid for liquid water to exist, although there were known to be deposits of ice. Prof Andrew Coates, head of planetary science at the Mullard Space, said: “The evidence so far is that any water would be in the form of permafrost. It’s the first time we’ve had evidence of liquid water there now.”

Japan plans to launch an unmanned mission to the moon as a stepping stone to a future visit to Mars, officials and local media said Monday.

This is your brain on cosmic rays: Digitally reconstructed images of dendrites (green) and spines (red) of neurons before (left) and after (right) irradiation.

Gary King, a microbiologist at LSU who studies the most extreme organisms on Earth, can't help but wonder whether our planet's toughest microbes could change the face of Mars.

The sun dips to a Martian horizon in a blue-tinged sky in images sent home to Earth this week from NASA's Curiosity Mars rover.

NASA engineer explains how OpenStack is a key part of enabling space exploration.

As it turns out, one needn’t travel to the endless darkness of Antarctica in order to carry out a space analog study on isolation. In fact, the longest running isolation study took place in a warehouse in the middle of the 8th largest city in the world. For 520 days, six test subjects from Russia, France, Italy, and China were locked in a module in Moscow to test the effects of isolation on small group dynamics and individual psychology.

Many hopefuls have signed up for a one-way ticket to the Red Planet. But if they aren't prepared, the trip may be a short one.

Some scientists believe that Mars is our civilization’s only hope. Are they missing the point? By Elizabeth Kolbert.

NASA's Curiosity Mars rover recorded this sequence of views of the sun setting at the close of the mission's 956th Martian day, or sol (April 15, 2015), from the rover's location in Gale Crater. The four images shown in sequence here were taken over a span of 6 minutes, 51 seconds.

Okay, going to Mars is going to be expensive. Not only that, but who we choose to pick on that trip also needs to have the statistically lowest chance of… perishing. So it might be the case that our best scenario is all female crew! The Mars Rover is doing some small work, but there are some things humans are just better at. Failing a Mars Mission (and no, Mars One doesn’t count) would be a big setback, so we need to get our first attempt right. So, who’s best suited for the trip?

The disc-shaped spacecraft was designed for more spacious flights to Mars.

A startling new photograph of Mars shows beautiful blue pools of water just right for a refreshing swim - or so it seems. In fact, the blue regions in the image - which was taken by the European Space Agency's Mars Express orbiter - are dark sediments that look like liquid water because of the way the image was processed, according to the agency's website.

NASA will test the Low-Density Supersonic Decelerator. What makes this landing system different from other landings?

Ion thrusters, nuclear rockets, and other in-space propulsion tech being looked at.

Brown University researchers have detected glass deposits on Mars that might contain evidence of past conditions and, possibly, life