Though NGC 7456 looks like a modest spiral galaxy, new Hubble and XMM-Newton observations reveal a bustling system with star-forming regions and an active core.

Exoplanets: Worlds Unseen

The search for exoplanets, planets outside our solar system, has revolutionized our understanding of planetary formation and the potential for life beyond Earth. Thousands of exoplanets have been discovered, showcasing an incredible diversity of sizes, compositions, and orbital characteristics.

We'll likely need to get Perseverance's samples to Earth to determine if they do indeed harbor evidence of Mars life —but the prospects of such a mission are cloudy at best.

A Russian Progress freighter loaded with 2.8 tons of cargo will launch toward the International Space Station today (Sept. 11), and you can watch it live.

S&T editors attended star parties in the past months in various locations around the country to observe with fellow stargazers.

Destiny 2’s next chapter is bringing in themes and elements from a galaxy far, far away without breaking the canon.

SpaceX just bought $17 billion worth of satellite spectrum from debt-ridden operator EchoStar to enhance Starlink direct-to-cell phone connectivity.

SpaceX’s Falcon 9 rocket is pictured in the launch position at Space Launch Complex 40 at Cape Canaveral Space Force Station on Monday, Sept. 8, 2025, ahead of the first launch attempt of the Nusantara Lima communications satellite. Image: SpaceX

Update Sept. 10, 5:55 p.m. EDT: SpaceX scrubbed the mission, targeting no earlier than Sept. 11.

In an era when TV shows look like movies, have we lost sight of what should make sci-fi great?

Disney/Pixar's interstellar odyssey landed on 4K UHD, Blu-ray, and DVD for all Earthlings!

Water may have flowed on the asteroid that birthed the space rock Ryugu a billion years after it formed, much later than previously thought, changing our perception of the early solar system.

The Celestron StarSense Explorer DX 130AZ telescope is on sale for $367 on Amazon and is a great budget choice for observing the opposition of Saturn overnight on Sept. 20.

If we slam an impactor into an asteroid in exactly the wrong spot, the space rock may pass through a "gravitational keyhole" that brings it to Earth.

NASA's Perseverance Mars rover has found yet more chemical signatures that could be associated with ancient Red Planet life — but we need to examine them here on Earth to fully understand them.

Celebrating 10 years since the first detection of gravitational waves coming from colliding black holes, LIGO has confirmed the predictions of the greatest minds in physics.

SpaceX launched 21 satellites to orbit from California today (Sept. 10), beginning the buildout of an advanced new constellation for the U.S. military.

Image: Immense stellar jet in Milky Way outskirts

The Celestron TrailSeeker 8x42mm binoculars come highly recommended by our experts, and with a saving of over $130, now is the time to spot star clusters and planets for less.