An artist’s rendering of Rocket Lab’s Tracking Layer Tranche 3 (TRKT3) program satellites, which are built on its Lightning satellite platform. Image: Rocket Lab
The U.S. Space Force’s Space Development Agency (SDA) awarded roughly $3.5 billion to four companies to begin building out the third generation of its low Earth orbit constellation.
"The sheer amount of radiated energy from these bursts is so large that you can't power them with a core collapse stellar explosion — or any other type of normal stellar explosion."
The 3,600-piece Lego Icons Star Trek USS Enterprise is Lego's first-ever Star Trek set, and you get a free gift when you purchase it before Christmas eve.
"We do not know with certainty that we found a superkilonova, but the event nevertheless is eye-opening."
Odin Space and Arkisys are teaming up to provide customers with pioneering insurance for spacecraft specifically to cover space debris collision events.
Discovered by amateur astronomers, a mysterious arc of gas might be the ghostly remains of a star shedding its outer layers. However, astronomers haven’t reached a consensus yet.
Ubisoft's ambitious open-world game remains the best way to immerse yourself in Pandora's lush locales, exotic creatures, and fierce battles.
Our middle-aged Solar System is mostly calm and stable, with fully-formed planets staying in their lanes while placidly orbiting the Sun. But it wasn't always this way. The Solar System had a tempestuous youth, full of collisions that shattered many bodies into tiny pieces. The debris-strewn main asteroid belt is evidence of this.
A photographer in Italy captured an ultra-rare elve and red sprite flashing above the Alps in a single breathtaking moment.
Whether you're buying for yourself or hunting for a gift for a keen astrophotographer, there's still time to save hundreds with these last-minute deals on cameras and lenses.
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On 17 December 2025, two new Galileo satellites lifted off from Europe’s Spaceport in French Guiana. This was the 14th launch for Europe’s satellite navigation operational satellite programme, reinforcing Europe’s resilience and autonomy. The flight, VA266, was the first launch of Galileo satellites on Europe’s newest heavy-lift launcher Ariane 6.
On 14 January 2026, the European Space Agency (ESA) will hold an online post-CM25 industry event for all ESA industrial partners.
"Virgil has two personalities, its 'good' side – a typical young galaxy quietly forming stars. But Virgil transforms into the host of a heavily obscured supermassive black hole, pouring out immense quantities of energy."
Do you know what time it is? It's an easy question, right? Just look at your phone or watch. But is that really the exact time? Oh, well, for that you can look to Coordinated Universal Time, or UTC. It's what your phone clock is synced to, give or take, but you can get a more accurate measure of UTC with a device that can pick up the UTC radio time signal. Of course, UTC is only an agreed-upon standard that tries to stay in sync with Earth's rotation. It, in turn, is based upon International Atomic Time (TAI), which is a weighted average of 450 atomic clocks located all over the world.
We greet the winter solstice. Jupiter nears opposition. Will the two Dog Stars balance for you? And meet the House in the Hyades.
"There is a lot to keep us busy."
If you're a Pandora-loving moviegoer who can't get enough of the Na'vi culture, keep an eye on these stunning Lego Avatar sets.
Astrophotographer Josh Dury has captured the beauty of the Geminids in this stunning timelapse exposure.
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