Posts by 

Deborah Byrd

No big planets at Alpha Centauri, but maybe small ones

"Because Alpha Centauri is so close, it's our first stop outside our solar system. There are almost certain to be small, rocky planets around Alpha Centauri A and B."

Geminid meteor, rising moon and tarantula

Spiders like stars, too.

Astronomers spot primordial galaxies swimming in dark matter

Astronomers thought the 1st galaxies would be small. Now they've spotted 2 giant galaxies from when the universe was only 5% of its current age.

IAU approves 86 more star names

"These professional astronomers are claiming the exclusive right to give 'approved' names to the stars. But the stars - and the sky - belong to all of us."

Sirius in many colors

When you see the sky's brightest star - Sirius - low in the sky, you're seeing it shine through an extra thickness of Earth's atmosphere. At such times, its colorful flashing might surprise you.

A grand year for the Geminids

The 2017 Geminid meteor shower was thought to have a better-than-average chance of producing a rich display, since the Geminids' parent body - a strange rock-comet called 3200 Phaethon - is nearby. And so it was! Photos here.

Astronomers chart galaxy orbits in our Local Supercluster

"For the first time, we are not only visualizing the detailed structure of our Local Supercluster of galaxies, but we are also seeing how the structure developed over the history of the universe."

Long-lasting moon halo

Halos around the sun or moon are caused by ice crystals, like those in high cirrus clouds. Sometimes you can't see clouds, but - in these photos - you can.

10 tips for watching the Geminids

Tip: On December 14, 2017, the peak morning of the shower, the waning crescent moon will be sweeping past the bright planet Jupiter.

California in flames

According to the California Department of Forestry and Fire Protection, the 2017 California wildfire season is the worst on record.

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