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.
When a massive asteroid is hurtling toward Earth, the solution seems straightforward; smash a spacecraft into it and knock it off course. That’s exactly what NASA successfully did with the DART mission in 2022, they proved this concept works and dramatically altered the orbit of the asteroid Dimorphos. But new research reveals the chilling possibility that an asteroid hit in the wrong spot, and you might just be postponing the impact!
A total lunar eclipse on March 2-4, 2026, will be visible in North America and will be the last total lunar eclipse anywhere on Earth until New Year's Eve 2028-2029.
Chile is a hotspot for telescopes peering up into deep space to study structures like stars, black holes, dark matter and galaxies.
The story of minor planet discovery began in 1801 when Giuseppe Piazzi spotted Ceres between Mars and Jupiter, beginning an era of thousands of asteroid discoveries. The classification of these minor bodies has evolved dramatically over the years with Ceres itself moving from planet to asteroid to dwarf planet by 2006. Pluto's discovery in 1930 revealed an entirely different population of icy worlds in the outer Solar System, and advanced sky surveys later uncovered the Kuiper Belt populated by fascinating objects like Eris and Haumea. Today we know of hundreds of thousands of minor planets, from tiny asteroids to dwarf planets rivalling Mercury in size.
One of the issues that motivates astronomers concerns star formation. There are many unanswered questions about this fundamental process, including if it has always worked the same throughout the Universe's long history. One of the reasons the JWST was built and launched is to address this question, a testament to curiosity about the subject.
Interstellar visitors like Comet 3I/ATLAS grant astronomers a rare opportunity to study something from another solar system. It was first discovered on July 1st when it was entering the inner Solar System and was about 4.5 au from the Sun. It's an active comet with an icy nucleus, meaning it's warming up as it approaches the Sun and releasing gas and dust that form a coma and tail.
There are plenty of labs working on solutions to Kessler Syndrome, where there’s so much debris in low Earth orbit that rockets are no longer capable of reaching it without being hit with hypersonic parts of defunct equipment. While we haven’t yet gotten to the point where we’ve lost access to space, there will come a day where that will happen if we don’t do something about it. A new paper from Kazunori Takahashi of Tohoku University in Japan looks at a novel solution that uses a type of magnetic field typically seen in fusion reactors to decelerate debris using a plasma beam while balancing itself with an equal and opposite thrust on the other side.
"The profile of the occultation was most consistent with it being a new satellite — a new moon — going around Quaoar."
21 satellites manufactured by York Space Systems for Space Development Agency’s upcoming Tranche 1 Transport Layer launch. Image: York Space Systems
The first in a series of launches supporting a burgeoning satellite constellation for the Space Development Agency (SDA) is set to take flight Wednesday morning from Vandenberg Space Force Base in California.
A newly discovered gamma-ray burst is unlike any seen before, repeating over the course of a day rather than erupting in milliseconds, leaving astronomers perplexed by its origins.
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