Posts by 

Deborah Byrd

A young galaxy in the local universe?

The nearby dwarf galaxy DDO 68 - only 39 million light-years away - looks young. But its nearness to us in space suggests it's not as young as it looks.

Why is Antarctic sea ice increasing as Arctic sea ice declines?

Arctic sea ice continued its long-term decline in 2014. Meanwhile, sea ice on the other side of the planet was headed in the opposite direction. Why?

Young moon returns to the evening sky

Moon was rising and setting with the sun in the past few days. Now it's far enough from the sun's glare to be visible in the evening sky, shortly after sunset.

Mars MAVEN spacecraft’s first observations

MAVEN is the first spacecraft dedicated to exploring the tenuous upper atmosphere of Mars. It entered orbit around Mars on September 21, 2014.

Water vapor in atmosphere of exoplanet four times Earth’s size

The exoplanet HAT P-11b - about Neptune's size - has an atmosphere that's cloudless at high altitudes. That's how astronomers could identify water vapor there.

Sun kissed

A beautiful photo to honor the sun at the equinox.

Time-lapse video of Meadow Fire in Yosemite

The Meadow fire in Yosemite National Park is still burning, but nearly 100 percent contained now. This video by QT Luong shows the beauty and terror of wildfire.

Comet C/2012 K1 (PANSTARRS) on September 19

This beautiful comet may be visible with the eye alone around mid-October, but it'll remain much easier to detect using binoculars or a telescope.

Space-based particle detector hints at dark matter

A new and tantalizing hint of mysterious dark matter has been found by the Alpha Magnetic Spectrometer particle detector aboard the International Space Station.

Dawn spacecraft to Ceres recovers after malfunctions

A collision with a high-energy radiation particle may have corrupted software running in Dawn's main computer, and sent the spacecraft into safe mode.