SpaceX appears to have canceled its planned Red Dragon mission to Mars that was set for no earlier than 2020, possibly in favor of a different approach to landing on the Red Planet.

Traumatic injury in space has a huge potential impact on a mission. And people barely know anything about how to deal with it. Metthieu Komorowski wanted to be an astronaut. Still does. The French-born anesthesiologist, currently getting a PhD at Imperial College London, applied to the European Space Agency in 2008. But he knows his chances are limited. “Being basically a medical resident I didn’t get very far in the selection,” Komorowski says. “But I’ve been working on building up my skills.”

In The Martian we saw what kind of hacking was needed to stay alive for a relatively short while on Mars, but what if you were trying to live there permanently?

A Martian meteorology study reveals rapidly falling snow above the planet’s surface. Although Mars has very little water vapor in its atmosphere, ice clouds can still form above the red planet. Now, new research finds that these clouds unleash rapidly falling snow at night. One of the study’s authors, Franck Montmessin, tells us more about the dramatic snowstorms on Mars.

For such a visionary futurist, Bradbury—who was born on this day in 1920—was rather old-fashioned.

The discovery of boron on Mars gives scientists more clues about whether life could have ever existed on the planet, according to a paper published today in the journal Geophysical Research Letters.

Six NASA-backed research subjects who have been cooped up in a Mars-like habitat on a remote Hawaii volcano since January emerged from isolation Sunday. They devoured fresh-picked tropical fruits, vegetables and a fluffy egg strata after eating mostly freeze-dried food during their isolation. The crew of four men and two women are part of a study designed to better understand the psychological impacts a long-term space mission would have on astronauts.

Let's see what he says Friday.

Elon Musk will reveal a vastly improved Mars Plan on Friday. It will have unexpected applications for the larger rocket and other technology.

The UAE has launched the Mars Science City project, a city that will serve as a “viable and realistic model” for studying the human occupation of Mars.

NASA's goal to reach Mars is just over a decade away, and Lockheed Martin revealed Thursday how humans might soon walk upon the red planet's surface. Lockheed Martin gave CNBC a first look at its new spacecraft prototype, which the company will unveil Thursday at this year's International Astronautical Congress in Adelaide, Australia.

Yes, Elon Musk still absolutely wants to go to Mars. But in a speech delivered Friday in Adelaide, Australia, the founder of SpaceX opened the door to sending humans to the Moon first. "It’s 2017, we should have a lunar base by now," he said, speaking just a couple of years shy of the 50th anniversary of the Apollo landings. "What the hell is going on?"

UFO conspiracy websites are posting this image which some allege shows three mile-high towers built in a line on the surface of the Red Planet.   The...

SpaceX CEO Elon musk has some "big freaking" plans for his latest rocket project.

Scientists using NASA's Mars Reconnaissance Orbiter spacecraft, in orbit above the Martian surface, have made a surprising discovery: an ancient dried-up lake bed that once held 10 times as much water as all of the Great Lakes combined. There's a possibility that this location saw the evolution of life billions of years ago, and may offer clues as to how life arose on our own planet.

This week, Mars rules the space photos.

For scientists trying to understand what ancient Mars might have been like, the red planet sends some mixed signals. Water-carved valleys and lakebeds leave little doubt that water once flowed on the surface. But climate models for early Mars suggest average temperatures around the globe stayed well below freezing.

I am a planetary scientist and once astronaut candidate finalist (read: space nerd). But I have something to confess: I do not want to live on Mars. While certainly interesting scientifically (e.g., seasonally-varying polar caps; transient methane plumes; permafrost), Mars is not particularly compelling as a long-term human destination.

Elon Musk is racing to land SpaceX on Mars in five years, a vision he unveiled late last month at the 2017 International Astronautical Congress. One man not among Musk's critics is Scott Kelly, a retired astronaut who set the record in 2015 for total accumulated days in space, during the single longest mission by an American. "When Elon Musk said he was going to launch his rocket and then land the first stage on a barge, I thought he was crazy," Kelly told "Squawk Box" on Tuesday. "And then he did it. I'm not going to ever doubt what he says, ever again."

On Mars oxygen and fuel are in short supply, but there might be a way to make both from carbon dioxide in the air