It happens to the best of us. A NASA astronaut realizes he forgot one very important piece of his GoPro as he embarks on his spacewalk for Expedition 55.
A newly discovered cosmic object has a peculiar tilted orbit that could only be explained by the presence of the elusive Planet Nine. Astronomers say this discovery strengthens the argument for the theoretical ninth planet.
In its first-ever image from space, planet hunter TESS takes a breathtaking shot of a glittering sea of over 200,000 nearby stars. This is only a tiny fraction of the expanse that TESS is expected to cover.
Scientists reviewed old data from the '90s Galileo mission, finding more evidence of water plumes in Jupiter's moon Europa. And if there's water, life may not be too far behind.
An asteroid larger than a football field is speeding toward Earth, and it's expected to whiz past just a hair's breadth away on Tuesday, May 15. It will be Earth's closest ever encounter to a space rock this size.
NASA astronaut Andrew Feustel is the newest recipient of Purdue University honorary doctorate, but his ceremony is far from ordinary. Feustel, currently stationed in the ISS, accepted the honor from way up in space on Friday, May 11.
A new Mars Helicopter will be hitching a ride with the Mars 2020 rover. The tiny rovercraft will be flying autonomously, cruising the skies of the Red Planet and marking a new step in space exploration.
The highly anticipated launch of the new Falcon 9 Block 5 was aborted less than a minute before blastoff. SpaceX intends to proceed with the launch on Friday, May 11.
If there is extraterrestrial life out in the cosmos, Breakthrough Listen's upgraded Parkes telescope will find it. The SETI initiative begins the hunt, sifting through billions of stars in hopes of spotting signs of aliens.
What will happen when the sun dies? Humans will be long gone from Earth at that point, but it has been an ongoing debate among scientists for decades.
Catch Jupiter at its most stunning and brightest on Tuesday, May 8. The gas giant will be in opposition, reaching its closest encounter with Earth in the year and appearing brighter than ever.
Extraterrestrial life may be trapped in the super-Earths unable to leave, which is why humans haven't run into alien life yet. New research says bulky planets make space travel much harder for aliens.
SpaceX's cutting-edge 'load-and-go' fueling procedure presents a major risk for astronauts onboard for the company's manned missions. NASA and other experts weigh in on the dangers.
Stephen Hawking's final research paper solves a key problem in the multiverse theory, offering a new concept of an eternal inflation that's scaled down and finite. The paper is coauthored by Thomas Hertog.
Flat Earthers converge at the Flat Earth Convention, exchanging far-fetched explanations on the shape of the planet. One theory suggests the Earth acts like the game 'Pac-Man,' transporting people from one end of the planet to another.