Posts by 

Deborah Byrd

Merging galaxies behaving strangely

When large and small galaxies merge, the large galaxy's central black hole typically gorges on gas and dust. But in a merging galaxy system called Was 49, the small galaxy has the feeding black hole.

Seahorse aurora

Seeing a seahorse shape in the shifting light of an aurora is an example of "pareidolia."

No kidding! April Fools’ Comet

Comet 41P/Tuttle-Giacombini-Kresák will be closer to Earth on April 1 than it's been since its discovery. You need a telescope to see it, but there's an online viewing Friday night.

March 28 very young moon

It's rare to see a moon less than 24 hours old, that is, 24 hours past the new phase. But North America had a shot at a younger moon on the night of March 28.

Watch a full rotation of the moon

Wonderful video from the Lunar Reconnaissance Orbiter, a NASA spacecraft in a polar orbit around the moon since 2009. The moon as you've never seen it!

Orion from the Southern Hemisphere

See the 3 stars of Orion's Belt in the upper right of this photo? The large, reddish cloud-like region on the lower left is the Gum Nebula.

Another Planet 9 search! You can help

This one will use images of the sky visible from Earth's Southern Hemisphere. You can help from anyplace on the globe. The search is for a 9th major planet in our system, nicknamed Planet 9.

Colors of scintillating Venus

Venus reaches inferior conjunction today, officially leaving the evening sky. It has been low in the sky, where Earth's atmosphere has caused Venus to scintillate, or twinkle, in many colors.

New map of space dust in 3-D

Sure, we're all collections of space dust. But astronomers also want to study it in order to understand how space dust in our Milky Way obscures starlight from afar.

Perfect airplane glory

You might catch an airplane glory when a mist or cloud lies below you, with the sun shining upon it.

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