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Black holes snacking on small stars create particle accelerators that bombard Earth with cosmic rays
Gamma rays detected by NASA's Fermi spacecraft indicate that microquasars are powered by small black holes slowly devouring stars. They pack quite a punch, bombarding Earth with cosmic rays.
Over 1,000 NASA employees saved from dismissal as Trump downsizes federal workforce
After the space community braced for a brutal shake-up at NASA this week, a last-minute decision on Tuesday (Feb. 18) spared over 1,000 agency employees on probationary status from being dismissed.
Northern lights forecasts, alerts, and geomagnetic storm warnings
The latest aurora forecast for tonight help you make sure you're in the right place at the right time to see the northern lights.
The next giant leap? How jumping could help astronauts train for trips to the moon and Mars
Scientists suggest adding jumping exercises to astronauts' training regimens, to minimize the health effects of long space missions, such as moon and Mars trips.
Largest-ever discovery of 'missing link' black holes revealed by dark energy camera (video)
Using a revolutionary dark energy camera, astronomers have discovered the largest haul of "missing link" intermediate-mass black holes ever seen, but there should have been more.
Want a workout? Try walking to the top of the world's largest telescope (photo)
The world's largest telescope continues to take shape on the Cerro Armazones mountain in Chile's Atacama Desert.
Blue Ghost moon lander lowers its orbit to fly closer to the lunar surface (video)
Firefly Aerospace's Blue Ghost lander lowered its orbit around the moon Tuesday (Feb. 18), sending back gorgeous footage from just over the lunar surface.
On this day in space! Feb. 19, 1986: Russia's Mir space station launched into orbit
On Feb. 19, 1986, the Soviet Union launched the Mir space station.
