Posts by 

Deborah Byrd

Ghostly light in galaxy clusters revealed by Webb

The Webb has now been used to study the ghostly light in galaxy clusters - the light of stars wandering in intergalactic space.

Moon and Mars! Fav photos of December 7 occultation

The moon and Mars were spectacular on the night of December 7-8, 2022. Some saw the moon occult - or pass in front of - Mars. Wonderful photos here!

Glacier calving in Antarctica: Video and science

Check out this dramatic video of a glacier calving in Antarctica. And read about how scientists' measurements revealed what was happening under the water.

Mauna Loa volcano: No evac orders, but residents on alert

Mauna Loa volcano in Hawaii is erupting for the 1st time in 38 years. As of this morning, the Hawaiian Volcano Observatory reports "no property is at risk."

What is the Brocken Spectre? A misty figure in the fog

The Brocken Spectre is your own shadow cast on mists below you from high on a mountain. The shadow may appear enormous and has a rainbow ring around it.

What is the Great Filter, and can we survive it?

A new study suggests the reason we haven't found intelligent civilizations in the galaxy is that such civilizations might not have survived their Great Filter.

Gold-rich stars as Milky Way ‘fossils’

New computer simulations show that most gold-rich stars were formed in low-mass dwarf galaxies that merged with our Milky Way galaxy some 10 billion years ago.

One supernova at 3 different times in cosmic history

How can we see one supernova at 3 different times in cosmic history? The answer lies in the powerful gravity of a giant galaxy cluster.

World population to hit 8 billion this month

The world population will reach 8 billion people on November 15, 2022. Read more about population trends across the world.

Space-based solar power to become reality?

Space-based solar power is a long-held dream of space visionaries. ESA will present a plan to implement it at an upcoming council meeting later this month.

EarthSky Newsletter

Nearly half a million daily subscribers love our newsletter. What are you waiting for? Sign up today!

Join now to receive free daily science news delivered straight to your email.