Latest articles by Jeanna Bryner
Ancient Asteroid Impact Coated Earth in Blanket of Beads
New research of carbon beads from Chicxulub Crater fuel more debate over dinosaur demise.
Flaring Temper Causes Sun to Quake
Astronomers have found the source of powerful starquakes on the sun.
Mid-Size Black Hole Answers Longstanding Question
Astronomers discover possible middleweight black hole.
Photo Suggests Planet Under Construction
Astronomers have captured what might be the first direct image of a young planet.
Cosmic Clean-Up: Wild Ideas to Sweep Space
Some wacky ideas could help to clean up the junkyard of space.
Five Volcanic Episodes On Mars Identified by Scientists
Five episodes of volcanic activity spewed lava and hot water onto Mars.
U.S. Says Satellite Shootdown Offers Model of Transparency
U.S. strike on satellite was different from China's anti-satellite test, officials say.
Satellite Shoot Down: How It Will Work
A computer model illustrates how a missile will shoot down a defunct U.S. spy satellite.
Mystery of Saturn's Watery Moon Solved
A hidden lake beneath the surface of Enceladus could support the moon's icy jets.
Cosmic Finger Taps Our Galaxy's Shoulder
Gas streaming from the Magellanic Clouds has hooked onto our galaxy's starry disk.
First Images of Approaching Asteroid
Higher resolution images are expected as an asteroid makes its closest approach to Earth.
Giant Storms Erupt on Jupiter
Two giant plumes that erupted on Jupiter suggest internal heat drives the planet's weather.
Large Asteroid to Fly Past Earth
A passing asteroid will be visible the night of Jan. 29 with modest-sized telescopes.
Amazing Old Stars Give Birth Again
Two old stars may be gearing up for a second generation of planet formation.
Pools of Invisible Matter Mapped in Space
Astronomers unveil new map of dark matter in a supercluster.
Space Cloud to Collide With Our Galaxy
Careening gas cloud headed for Milky Way to create celestial fireworks.
Even Thin Galaxies Pack Hefty Black Holes
Finding shows galaxies don't need bulge to harbor monster black holes.
Four Stars Found in Amazingly Tight Bunch
Four stars discovered swirling in region equal to Jupiter's orbit.
Rogue Black Holes Might Fill Our Galaxy
Our home galaxy could be chock-full of rogue black holes.
Faraway Planets Collided, Study Suggests
Hefty extrasolar planet likely formed collision of two planets.
Cosmic Blue Blobs Discovered
Heavy, brilliant blue blobs seen lurking in intergalactic space.
