Posts by 

Deborah Byrd

1st dark stars?! Maybe, say astrophysicists

Scientists say they've found the 1st dark stars - brighter than our sun - powered by dark matter particles that collide and annihilate themselves.

How does Earth look from outer space?

How does Earth look from space? You could see it from Neptune, but it's brighter from closer locations. Spacecraft photos tell the tale.

Did the Anthropocene begin in the 1950s?

A scientific working group declared that a new epoch - the Anthropocene - began in 1950, with evidence from a lake in Ontario, Canada.

Record highs at sea and on land, and a ‘shocking’ decline in Antarctic ice

The World Meteorological Organization held a press conference on July 10 to confirm record highs at sea and on land, and a steep decline in Antarctic sea ice.

Circumhorizon arc or iridescent cloud?

It's easy to confuse a circumhorizon arc with an iridescent cloud, and vice versa. Circumhorizon arcs are more commonly seen at this time of year.

Life’s building blocks found in Orion Nebula

Scientists have found carbon compounds - life's building blocks - in a planet-forming disk, encircling a star in the famous Orion Nebula.

Best EarthSky photos: Moon and Jupiter, June 2023

On the morning of June 14, 2023, the moon and Jupiter were near one another, as seen by people around the globe. It was beautiful!

Biggest monster star! And the heaviest stars

How big can stars get? How does our sun compare to them? And how did the biggest monster star get so big? Meet some of the biggest and most massive stars known.

1st-ever Mars livestream! Watch the replay here

The European Space Agency broadcast the 1st-ever Mars livestream on June 2, 2023. Watch it here.

Best ocean photos: Are you longing for the sea?

Ocean photos from EarthSky friends across the globe in celebration of World Oceans Day 2023. Would you like to share your images?