Space.com

The 1st astronaut mission aboard Boeing's Starliner will not lift off May 25 as planned. NASA has not yet revealed the cause, but a helium leak has been ongoing in the spacecraft.

A new report by NASA outlines the most promising approaches to keeping the space around Earth safe and usable for future generations.

Sierra Space Chief Medical Officer Dr. Tom Marshburn shares how medical research in space makes a difference here on Earth.

Giuseppe Donatiello is an amateur astronomer with a unique distinction: discoverer of 11 galaxies, nine with his name.

Stay up-to-date with the latest news on the upcoming solar eclipses, including the annular solar eclipse on Oct. 2, 2024.

With the Euclid space telescope set to deliver a new batch of images on Thursday (May 23), we're looking back at the dark universe detective's achievements thus far.

The Celestron Astro Fi telescope features in our best telescopes guide and now it comes with a $230 discount.

In a first-of-its-kind mission, Starfish Space will attach a "jetpack"-like satellite to a U.S. military satellite to give it two years of additional propulsion and maneuverability.

Dream Chaser is almost ready for its first mission. The space plane Tenacity and a cargo module are at NASA's Kennedy Space Center for final testing ahead of an ISS launch.

The Doctor has his foot on a landmine throughout this high-concept adventure for episode 3 — but who's the real enemy on Kastarion 3?

China's robotic Chang'e 6 sample-return mission to the lunar far side is now in orbit around the moon, gearing up for its landing attempt.

Celestron's EclipSmart binoculars are specialists for solar observation and now they're 25% off on Amazon

By the end of this summer, we may have a good idea as to whether we'll have a bright naked-eye comet gracing our early autumn evening sky, known as C/2023 A3 (Tsuchinshan–ATLAS).

SpaceX plans to launch the first batch of satellites for the U.S. National Reconnaissance Office's "proliferated architecture" early Wednesday morning (May 22).

NASA scientists have discovered signs of an impending flash drought months before the onset by observing the brightness of "glowing" plants from space.

The best binoculars for long distance viewing have high magnification, quality optics and excel for stargazing or wildlife observation — here are our favorites.

Modeling distant planets has revealed that tidal forces generated by their parent stars can combine with intense radiation bombardment and strip away their atmospheres.

Astronomers have found that one of the lightest exoplanets ever seen, the young 'cotton candy' world V1298 Tau b, may be shrinking from the size of Jupiter to the width of a super-Earth.

For years, physicists have been looking to prove that black holes are more complex than they seem. And a newly approved European space mission called LISA will help us with this hunt.

How do scientists know if a planet has a magnetic field?