Blue orbs can sometimes appear in photos, videos, or dreams, or you might even see one with the naked eye when you're wide awake. It's an experience you won't soon forget, but it could leave you with ...

NASA’s Orion spacecraft has entered orbit around the moon, marking the start of its week-long orbit as part of the Artemis I mission. The plan is for the uncrewed spacecraft to test out equipment and ...

While our Sun prefers to go solo, many other stars are parts of binary systems, with a pair of stars gravitationally bound to each other. In some cases, the stars are far enough apart that planets can ...

The newly discovered planet TIC 241249530 b has the most highly elliptical, or eccentric, orbit of any known planet. It appears to be a juvenile planet that is in the midst of becoming a hot Jupiter, ...

In our last installment, we explored the evolution of the Starship concept and NASA’s decision to partner with SpaceX for the Artemis Program’s Human Landing System (HLS). We also touched on technical ...

HELSINKI — China has sent several small spacecraft into specialized lunar and cislunar orbits to test communications, navigation and orbital dynamics for planned Earth-moon infrastructure. China’s DRO ...

Hot Jupiters are some of the most extreme planets in the galaxy. These scorching worlds are as massive as Jupiter, and they swing wildly close to their star, whirling around in a few days compared to ...