Posts by 

Deborah Byrd

Zooming star points to black hole in globular star cluster

Globular star clusters contain our galaxy's most ancient stars. Astronomers didn't expect to find a 4-solar-mass black hole in one, but ... voila!

Best photos: Morning planets!

On Sunday morning, Jupiter and Mars were half a moon-diameter apart. Now the moon is sweeping past. Plus Mercury and Saturn are in conjunction this weekend. Photos here.

Our Milky Way as a “melting pot”

Where do stars we see at night come from? Newly confirmed streams of stars - thought to be coming to our Milky Way from other galaxies - suggest not all Milky Way stars were born here.

Astronomers detect whirlpool movement in earliest galaxies

Astronomers looked back to a time only 800 million years after the Big Bang and found whirlpool shapes in small, very young galaxies.

A 3D journey through the Orion Nebula

Astronomers and visualization specialists at NASA have just released this unprecedented, 3-dimensional, fly-through view of the Orion Nebula, a nearby star-forming region.

Fast radio bursts: A mystery unfolds

Repeating, short, unpredictable radio bursts left astronomers perplexed. Now they think the bursts were twisted by the extreme environment around a supernova or supermassive black hole.

What was that bright flash over Russia?

A flash seen over a wide swath of Russia on January 7 at first caused fears of a U.S. air strike on North Korea. For now, the flash is unexplained.

Sun pillar at Frankfort Lighthouse

You might see a sun pillar - or light pillar - extending upward (or downward) from a bright light source. They're caused by ice crystals drifting in Earth's air.

New year’s comets

Will 2018 give us a bright comet? There are a couple of possibilities. In the meantime, here are some photos of comets, visible through telescopes, as 2018 begins.

Predawn moon near Spica, planets

Still close after their spectacular conjunction on Sunday, the bright planets Jupiter and Mars appear near the bright star Spica and the waning moon Tuesday morning.