NASA successfully crashed a spacecraft into an asteroid 11 million kilometers away—on purpose. The Double Asteroid Redirection Test (DART) was a historic mission designed to see if we could deflect a ...

BL Lacertae is a blazar—a kind of galaxy with a supermassive black hole and high-energy jets pointing toward Earth.

Astronomers have probed the physical environment of repeating X-ray outbursts near monster black holes thanks to data from NASA's NICER (Neutron star Interior Composition Explorer) and other missions.

New observations from NASA's James Webb Space Telescope have revealed that auroras on Jupiter are hundreds of times brighter ...

NASA's Imaging X-ray Polarimetry Explorer (IXPE) has solved a long-standing cosmic mystery about how X-rays are generated in ...

Astronomers are unraveling the mystery behind Ansky, a black hole system emitting powerful, repeating X-ray bursts called ...

Don Pettit spent a busy 220 days at the International Space Station. He conducted experiments, talked with students and ...

On March 15, 2024, near the peak of the current solar cycle, the Sun produced a solar flare and an accompanying coronal mass ...

The James Webb Space Telescope has peered into the atmosphere of Saturn's largest moon Titan, capturing the first evidence of ...

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The Donald Trump administration's budget proposal has sparked concerns at NASA as it could lead to cancellation of several major missions. One of these missions is the Mars Sample Return which has ...