The unbelievable story behind the ‘most terrifying’ image NASA has ever taken of astronaut Bruce McCandless II who did the first-ever untethered spacewalk.

Lots of us look up at the night sky with wonderment, asking how humans are able to explore the universe. Tracy Drain, a ...

Certain species of ground squirrels hibernate underground without any food or water for up to eight months of the year. It’s a super-extreme survival strategy, enabled by a complicated cascade of ...

NASA's Curiosity rover made a compelling find on Mars' irradiated surface. The car-sized robot's molecule-sleuthing ...

Researchers have developed scalable lightsails, ultra-thin, reflective structures that use laser-driven radiation pressure to ...

SpaceX launched the Transporter-13 rideshare mission on Friday, March 14, at 11:43 PM PDT (06:43 UTC on March 15) from SLC-4E ...

Lane Bess, a tech investor and CEO, has now gone to space twice on Jeff Bezos' Blue Origin. Each time he said it reminded him ...

"It's time we all realize that we are crew members on this spaceship called Earth and start to think about our role and ...

Scientists are confident Mars was once abundant with water, as seen in massive flood-carved channels, ancient river valleys, ...

Now that Butch Wilmore and Suni Williams are home, ending a 9-month spaceflight, questions remain about the troubled ...

When Boeing’s Starliner spacecraft malfunctioned, Williams and Wilmore became long-term residents on the space station—and ...

Researchers worry an “extinction-level event” is coming for space science as the Trump administration looks to slash spending ...