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Tory Bruno, the longtime chief of the launch provider United Launch Alliance (ULA) has joined the competition at Blue O…

Bears, stars, Battlestar Galactica

SpaceX just set a new annual-launch record for the sixth year in a row, and the numbers are getting pretty silly.

Constellations, planets, a waxing moon and more grace the night sky this New Year's Eve.

Ever wondered which constellation mirrors your personality? Take this cosmic quiz to find out which starry pattern best…

The test is designed to prepare satellites for one of the most complex tasks in space: safely approaching another objec…

"The damage is real, but it doesn't have to be permanent."

From auroras at 36,000 feet to comet flybys and eclipses, these are the standout images our readers shared with Space.c…

The image offers a rare look at how Earth's surface and atmosphere interact after sunset.

At first glance, it seems like our understanding of physics forbids free will.

Here are the best lunar events to see in 2026, including eclipses, supermoons and conjunctions.

This lightweight medium-format powerhouse is one of the most powerful cameras you can get, but how does it work for ast…

This low-cost mission is still only getting started, and it's taking bigger risks than typical big-ticket NASA miss…

Hunt for key terms that define one of the universe's most mind-bending phenomena—from event horizons to singulariti…

We asked our staff to choose their favorite Space.com stories of 2025. Here's what we got.

Here are eight of the most spectacular astronomical discoveries of 2025.

Test your space smarts with our weekly crossword challenge, crafted from Space.com's biggest headlines.

When a piece of debris hits another object in space, it can also create more space debris, adding to the problem.

Spike your eggnog and relax with our list of the finest flicks of the year about invasive AI, soaring superheroes, and …

It's the 12 days of Spacemas, fa la la la la la la la la (sorry).

It marks the first time newly commissioned Space Force Guardians have graduated Officer Training School (OTS) wearing t…

Don't miss the moon cozy up to Saturn on Dec. 26.

New discoveries and fresh looks at familiar worlds show how far exoplanet science has come — and how much remains unkno…

From the moon and Jupiter to famous nebulae and galaxies, here’s your beginner-friendly guide to what to point your bra…

As a space scientist, I predict that the company will soon have to reckon with a growing problem: space debris.

All the NASA engineers and scientists need is a star on top of the telescope in the cleanroom.

They won't be home for Christmas, but astronauts in space are finding their own way to make the season bright.

The night sky is the Christmas gift that just keeps giving.

On Christmas Eve 1968, the Earth received a message from astronauts on a mission like no other - the first around the m…

The reindeer ain't got time to bleed.

The South Sandwich Islands were born from a tectonic collision, forged by volcanism and relentlessly reshaped by ice, w…

2025 was another big year for black holes, and here's our pick of the top black hole stories from the last twelve m…

Highlights from a cometary trio that captured our imaginations.

The "America 250" logo commemorates the upcoming 250th anniversary of the signing of the Declaration of Indep…

We just got a great up-close look at a SpaceX Starlink satellite that recently suffered an anomaly in orbit, thanks to …

From a crescent moon and a 'Christmas Star' to deep sky delights, the wonders of the holiday night sky are your…

The first scientific balloon flight happened on Dec. 16, 2025.

"I think every astronomer is going to find something of value here, as NASA's missions enable the world to ans…

A bevy of comets, a "blood moon" total lunar eclipse and impressive northern lights were just three of the sk…

A Japanese H3 rocket suffered an anomaly during the launch of a navigation satellite on Sunday night (Dec. 21), resulti…

Ursid shooting stars may be visible throughout the night on Dec. 21-22.

As the veteran 'Who' antagonists get ready for their close-up, we look back at 50 years of underwater history.�…

Today marks the shortest day and longest night of the year as the sun reaches its lowest point in the Northern Hemisphe…

Black Friday offers massive discounts on a host of products, but you don't have to wait until the next one to save …

Hated rivals Dennis Quaid and Lou Gossett Jr. find brotherhood on a desolate planet in Wolfgang Petersen's cult sci…

Does the universe notice that we're paying attention to a quantum experiment? The answer goes against everything we…

Are you behind on your holiday shopping or holding out for some final pre-Christmas bargains? From telescopes to monocu…

A VPN is a great tool for online safety and streaming, and ensuring content won't be geo-locked on your travels. Th…

The South Korean startup Innospace will attempt its first orbital launch from Brazil's Alcântara Space Center on Fr…

3I/ATLAS has now made its closest approach to the sun and Earth and is now heading back out toward the outer solar syst…

For one, it came down to timing.

NASA JPL pinpoints the moment the interstellar visitor passes closest to our planet.

Totally transform a kid’s bedroom into a hub of space exploration without breaking the bank this holiday season.

The Soyuz launched on Nov. 27, 2025 from the Baikonur Cosmodrome in Kazakhstan.

The California startup Vast has opened a call for scientific research aboard its Haven-1 private space station, which i…

Wednesday, Dec. 17, 2025: Your daily feed for the holiday flyby of interstellar comet 3I/ATLAS by Earth.

Dr. Larry Denneau of the University of Hawaii is nothing like your typical astronomer.

Amazon and Bethesda return to the Wasteland with a second Fallout season that's all about New Vegas and not letting…

Think you know your Dyson spheres from your dark blobs? This cosmic crossword dives into the strangest, most mind-bendi…

Smooth filaments stretching for many light-years, seen by the powerful space telescope, could indicate what the right &…

Two commercial spacecraft pulled off a surprise rendezvous in Earth orbit recently, showcasing skills that could pave t…

Anomalous amounts of volatile elements found in the Apollo samples brought back from the moon have been traced back to …

When 3I/ATLAS is closest to the Earth on Dec. 19, all the features that we are looking for will be easier to detect wit…

It's one of the 21st century's best sci-fi shows. If only "The Expanse" had found the audience it des…

December's faint Ursid meteor shower returns under dark skies, offering a small chance of unexpected activity.

Assuming Google does manage to launch a prototype in 2027, will it simply be a high-stakes technical experiment – or th…

'No matter what your traditions are, someone is going to break them.'

Dark stars are not exactly stars, and they are certainly not dark.

The Geminid meteor shower occurs as Earth passes through the debris from asteroid (3200) Phaethon

Up to 150 shooting stars may brighten the night sky each hour during the Dec. 13 peak.

The U.S. Space Force is boosting its ability to deter and defeat drones and other uncrewed aerial systems near Cape Can…

Like a mood ring, clothing could let future space travelers know when they've been exposed to unsafe levels of radi…

Hawaiian stargazers got a particularly special treat recently.

"The natural question that comes up is: how many more space telescopes will be affected when all these constellati…

"We did the simplest thing that could be done — we just mapped them and pieced them together."

This stunning image is full of young star clusters.

JUICE and the Hubble Space Telescope turned their gazes towards the interstellar visitor in November.

"We are only beginning to discover the true complexity of these worlds."

The findings provide an answer to a planetary mystery that has bewildered scientists for nearly four decades.

Once completed, this telescope will help usher in a new era of astronomy.

"We might lose the ability to observe about 30% of the faintest galaxies. We are at the point of starting to be ab…

For the first time, we can see and hear lightning-like discharges in Mars' thin atmosphere.

The image shows a good example of the phenomenon called airglow.

In other words, the matter traveled at 20% the speed of light.

Aetherflux has focused its efforts on space-based solar power, with the goal of "building an American power grid i…

SpaceX will launch a secret payload for the U.S. National Reconnaissance Office today (Dec. 9), and you can watch the a…

This rare phenomenon is also called the green rim and it actually happens at every sunset.

An AI start-up has found a vulnerability in security software protecting NASA's ground control communications with …

The powerful X1.1 solar flare from sunspot region 4298 sparked strong radio blackouts on the sunlit portion of Earth at…

NASA's Jonny Kim and two cosmonauts are scheduled to leave the International Space Station tonight (Dec. 8), and yo…

From bicycles to rockets, learning through experience – whether human or machine – is shaping the future of space explo…

The Sea Devils are back in a brand new 'Doctor Who' spin-off. Here's how to watch 'The War Between the …

Most astronauts who menstruate pause their cycle with hormones before hitting the stars, but in the future, we'll n…

The Geminids return with near-perfect viewing conditions, offering skywatchers up to 150 meteors an hour under dark Dec…

Test your space smarts with our weekly crossword challenge, crafted from Space.com's biggest headlines.

The waning moon shines close to the king of the planets on Dec. 7.

Rocket Lab launched a satellite for a "confidential commercial customer" on Thursday morning (Nov. 20), just …

The Global Space Awards will be held at London's Natural History Museum on Dec. 5.

Is this really a crater in the Saharan Desert?

December's "Cold Moon" rose on Dec. 4 as it neared its closest point ot Earth in its monthly orbit.

What can today's scientists learn about astronomical phenomena from ancient texts?

The Geminid meteor shower is active from Dec. 4 and hits its peak on the night of Dec. 13-14.

The EURECA spacecraft flew on the space shuttle Atlantis in 1992.

A new joint analysis from the NOvA and T2K experiments offers the most precise look yet at neutrino behavior, bringing …

See a stunning supermoon take flight on Dec. 4.

The vantage point at Cerro Pachón, with its dark skies and high-altitude clarity, enhances the richness of the image.��…

Auroras may be visible from Alaska to New York as a speedy solar wind and incoming coronal mass ejection are expected t…

Asteroid Bennu samples contain life-friendly sugars, a strange "space-gum," and ancient stardust

Our astronomy expert, Gemma Lavender, was seriously impressed with the ZWO Seestar S30. It's still $50 off in a Cyb…

Jared Isaacman, President Trump's pick to lead NASA, is on board with moving the space shuttle Discovery to Houston…

A SpaceX Falcon 9 rocket launched 27 Starlink internet satellites early Tuesday morning (Dec. 2). It was the company…

Scientists used data from NASA's Perseverance rover to find tiny lightning bolts on Mars that could scour biosignat…

A SpaceX Falcon 9 rocket carrying 29 Starlink satellites launched from NASA's Kennedy Space Center in Florida on De…

The collectible Skywalker Legacy set from Disney is $50 off in this limited-time Cyber Monday lightsaber deal right now…

A Vega C rocket is scheduled to launch South Korea's powerful KOMPSAT-7 Earth-observation satellite today (Dec. 1),…