Posts by 

Deborah Byrd

What flows into a galaxy ‘cleaner’ than what flows out

Pure hydrogen and helium gas flows into a galaxy. It's used to make new stars. Those stars make new elements, which are later released back to intergalactic space.

Late summer 2021 fires, California, seen from space

NASA's Terra satellite caught images of streamers of smoke from late summer 2021 fires in California during its 115,254th orbit of Earth.

Rare lunar halo – an odd-radius halo – over India

A common halo around the sun or moon has a radius of 22 degrees. It's called a 22-degree halo. But here's a rare lunar halo: an odd-radius halo.

New odds on asteroid Bennu. Will it strike Earth?

At a press conference August 11, 2021, planetary scientists released new odds on asteroid Bennu and its potential to strike Earth.

An all-sky red giant star symphony

The TESS planet-finder and Gaia space observatory have given us tickets to a red giant star symphony, now playing in our Milky Way galaxy.

The Mediterranean heatwave goes on

The Mediterranean heatwave is featuring land surface temperatures of over 50 C (122 F) and air temperatures in triple digits as well.

Parhelic circle and 2 halos over Alberta, Canada

Beautiful photo from an EarthSky community member showing showing portions of a 22-degree halo, circumscribed halo and parhelic circle.

Major 8.2-magnitude earthquake rocks Alaska

Sirens sounded across Alaska's Kodiak island last night, after an 8.2-magnitude earthquake prompted tsunami warmings.

Russia’s Nauka module en route to ISS

Russia's Nauka module reportedly had some issues after reaching orbiting. It's due to dock with the International Space Station on July 29.

Find Perseid and Delta Aquariid radiant points

Every late July and August, two excellent meteor showers overlap. Here's how to find the Perseid and Delta Aquariid radiant points.

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