"These results from the Dark Energy Survey shine new light on our understanding of the universe and...
The GPS 3 Space Vehicle 09 satellite is encapsulated inside Falcon 9 rocket payload fairings at Astrotech...
The Circinus Galaxy, a galaxy about 13 million light-years away, contains an active supermassive black hole that...
Like a recording artist who has had a long career, NASA’s Chandra X-ray Observatory has a “back...
Gen. Michael Guetlein says deterrence hinges less on exquisite technology than on cost, production scale and industrial...
Test your space smarts with our weekly crossword challenge, crafted from Space.com's biggest headlines.
Helping young people tap into their excitement about the night sky helps them build confidence and opens...
The craters bear the names of astronomers who revolutionized our understanding of the night sky.
Amazon’s internet-beaming satellites are bright enough to disrupt astronomical research, study finds
The satellites in Amazon's new internet-beaming megaconstellation in low Earth orbit are bright enough to disrupt astronomical...
File: A SpaceX Falcon 9 rocket stands in launch position at Space Launch Complex 4 East (SLC-4E)...
NASA and the Department of Energy have agreed to work together on development of nuclear reactors for...
In an exclusive interview, bestselling author Martha Wells talks "Platform Decay," from its moral stakes to Murderbot's...
Before you set a course for the final frontier, find out which legendary 'Star Trek' captain's leadership...
We frequently question whether we are alone in the universe.
It’s Saturday! This week, in an eminently practical analysis of the Boltzmann brain conjecture, physicists put constraints...
The Wolf Moon is named for the hungry predators that sometimes can be heard howling in the...
Smartphone weather apps that summarize their forecasts with eye-popping numbers and bright icons may be handy during...
Earthquake sensors can detect sonic booms generated by reentering space debris to help track the potentially dangerous...
We live near a fusion reactor in space that provides all our heat and light. That reactor...
"Stars like the sun don’t just stop shining for no reason."