Latest articles by Jeanna Bryner
Astronomers discover possible middleweight black hole.
Astronomers have captured what might be the first direct image of a young planet.
Some wacky ideas could help to clean up the junkyard of space.
Five episodes of volcanic activity spewed lava and hot water onto Mars.
U.S. strike on satellite was different from China's anti-satellite test, officials say.
A computer model illustrates how a missile will shoot down a defunct U.S. spy satellite.
A hidden lake beneath the surface of Enceladus could support the moon's icy jets.
Gas streaming from the Magellanic Clouds has hooked onto our galaxy's starry disk.
Higher resolution images are expected as an asteroid makes its closest approach to Earth.
Two giant plumes that erupted on Jupiter suggest internal heat drives the planet's weather.
A passing asteroid will be visible the night of Jan. 29 with modest-sized telescopes.
Two old stars may be gearing up for a second generation of planet formation.
Astronomers unveil new map of dark matter in a supercluster.
Careening gas cloud headed for Milky Way to create celestial fireworks.
Finding shows galaxies don't need bulge to harbor monster black holes.
Four stars discovered swirling in region equal to Jupiter's orbit.
Massive black hole 18 billion times more massive than sun discovered.
Our home galaxy could be chock-full of rogue black holes.
Hefty extrasolar planet likely formed collision of two planets.
Heavy, brilliant blue blobs seen lurking in intergalactic space.
NASA details its plans to service, repair Hubble telescope.
