Mars

With fewer future missions planned, the agency is rethinking how scientists will compete for access

The SpaceX vision for a multiplanet species prompts thinking on how to make a planet more habitable

International rules on microbe contamination may stymie Curiosity's bid to study suspected water in hillside streaks 

Six “astronauts” spent 12 months in a dome or wearing space suits on a barren volcano  

Challenges facing Elon Musk’s project include getting return-trip fuel from Martian resources  

Mission scientists are investigating what caused a suspension the Mars rover's activities on July 2

It's not just a way station to Mars—it's a way to build new industries

Space program official Sarah Amiri says the United Arab Emirates is tapping young minds as its economy changes

Trying to create a whiff of an alien atmosphere—sunbaked sulfur and chalk

An architecture and design class partners with NASA to develop a human-focused spacecraft environment that could take astronauts to Mars

Meteorite impacts triggered enormous waves in a now-vanished ocean 

After two years on the Red Planet, NASA's Curiosity rover rules out a seasonal explanation for an observed methane spike