Posts by 

Deborah Byrd

Have astronomers pinpointed dark matter Galaxy X?

In 2009, astronomers predicted an unseen dark-matter-dominated dwarf galaxy orbiting our Milky Way - nicknamed Galaxy X. Now they say they've found it.

Hello, Pluto! New images from New Horizons

On Clyde Tombaugh's birthday, newly released images from New Horizons spacecraft showing Pluto and its largest moon, Charon. The craft is now on approach to Pluto!

NASA steps closer to a Europa mission

The space community is buzzing with news of positive steps toward NASA's planned mission to Jupiter's fascinating moon Europa.

Long-necked dinosaur roamed China 160 million years ago

Scientists report on the discovery in China of a new species of dinosaur - calling Qijianglong - a creature that was "half neck."

Winter stars … and Vega?

Two Dog Stars and a real dog named for a star.

Video: Cool movie of close-passing asteroid 2004 BL86

Asteroid 2004 BL86 and its newly discovered moon passed only 745,000 miles (1.2 million km) from Earth last week. Did you see the still photos? Now see the movie ...

Ancient skull offers clues to humans’ migration out of Africa

A partial skull from a cave in northern Israel sheds light on the first modern humans to walk out of Africa and their interbreeding with Neanderthals.

Moon, Mars and Venus from a sea cave

Looking out from a sea cave over the Pacific at two planets and the moon.

Flowing water on Vesta?

Who knew asteroids could have flowing water? They are so small, airless and cold that the idea seems surprising, to say the least. The latest evidence, here.

Astrophysicists’ update on enormous and unexpected Fermi bubbles

Discovered in 2010, two vast and mysterious Fermi bubbles radiate out from our Milky Way galaxy's core. An update from the three astrophysicists who found them.