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Searches for dark matter particles have come up empty so far, driving theorists to get more creative with their ideas.
While space is often referred to as a vacuum, it isn't completely empty.
Which is the best streaming device out there? We've pitted four of the best models on the market against each other to determine the top option.
As another year comes to an end, we sit down and collect our thoughts on the best sci-fi and space video games of 2025.
After nearly 12 years leading the United Launch Alliance (ULA), its chief Tory Bruno is stepping down from the U.S. rocket launch provider to pursue "another opportunity," the company announced this week.
It marks the first time newly commissioned Space Force Guardians have graduated Officer Training School (OTS) wearing this uniform.
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 unknown.
From the moon and Jupiter to famous nebulae and galaxies, here’s your beginner-friendly guide to what to point your brand-new telescope at.
Overall, the Arctic is warming more than twice as fast as the Earth as a whole.
Long before modern telescopes, early astronomers mapped the heavens with math, myth, and sheer curiosity. This crossword quiz celebrates the minds who first charted the cosmos.
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.
The axion could be a contender to explain the mystery of dark matter.
The two largest and most expensive Lego Star Wars sets available go head-to-head: The UCS Millennium Falcon and the UCS Death Star. But which is best?
The microwave-sized sensor detects 'spectral fingerprints' of important minerals.
China overcomes human spaceflight emergency and makes leaps with lunar hardware tests
Using the Hubble space telescope, astronomers have imaged "'Dracula’s Chivito" the largest site of planetary birth ever seen.
On Christmas Eve 1968, the Earth received a message from astronauts on a mission like no other - the first around the moon. NASA will return in 2026.
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, wind and waves.
2025 was another big year for black holes, and here's our pick of the top black hole stories from the last twelve months.
According to the patent, habitable modules would rotate around a central axis to simulate gravity for crew by producing an outward-pushing centrifugal force.
In a galaxy not so far away, Lego sets can be VERY expensive: Here are the most expensive Lego Star Wars sets you can currently buy.
Outside Earth's protection, space travellers will be routinely exposed.
Early risers across North America and Europe may spot a bright, silent light gliding across the Christmas sky — and it just happens to coincide with an ISS flyby.
Fast solar wind and a possible glancing blow from a coronal mass ejection could spark auroras over Christmas.
3I/ATLAS may have moved away from Earth as it makes its way out of the solar system, but this interstellar intruder continues to delight and surprise astronomers.
An Indian LVM3 rocket successfully launched the massive BlueBird 6 smartphone satellite for AST SpaceMobile to orbit on Tuesday night (Dec. 23).
"Science doesn't always go as planned. In any case, there's a lot of work to be done."
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 Independence.
We just got a great up-close look at a SpaceX Starlink satellite that recently suffered an anomaly in orbit, thanks to Vantor's WorldView-3 spacecraft.
From a crescent moon and a 'Christmas Star' to deep sky delights, the wonders of the holiday night sky are yours to explore.
The South Korean startup Innospace failed during its first orbital launch attempt, which sent five satellites aloft on Dec. 22 from Brazil.
Test your cosmic eye: can you match these dazzling nebula images to their names?
Watch those skies! In 2025, quality television really did come from outer space.
Yuletide season is officially upon us and here's a joyous array of new titles to add to your holiday reading list.
NORAD celebrates its 70th year of tracking Santa Claus as he flies around the world delivering joy this Christmas Eve.
Rocket Lab launched its 21st and final mission of the year over the weekend, sending a private Japanese Earth-observing satellite to orbit.
Qingzhou is a lighter and potentially lower-cost alternative to China's Tianzhou freighter.
Auroras may be visible from Alaska to Idaho as incoming speedy solar wind continues to buffet Earth's magnetic field.
From space slugs to lunar cemeteries, these movies, games, and books show that the undead can arrive from above, as well as below.
Bitcoin-mining mega data center seen leaking heat into the environment in an image captured from orbit by a thermometer satellite
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 answer fundamental questions about how the universe got its start, and how it changed to eventually…
A bevy of comets, a "blood moon" total lunar eclipse and impressive northern lights were just three of the skywatching highlights in 2025. Here's how they unfolded.
A Japanese H3 rocket suffered an anomaly during the launch of a navigation satellite on Sunday night (Dec. 21), resulting in the loss of the spacecraft.