Posts by 

Deborah Byrd

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?

Watch 1,000 Lego astronauts soar to the edge of space

A high-altitude balloon carried a mini space-shuttle with 1,000 Lego astronauts to the edge of space. Watch the fun video here.

Frank Drake, SETI visionary, born on this date

May 28, 2023, would be the 93rd birthday of Frank Drake. He formulated the famous Drake equation in 1961, as a tool for contemplating alien civilizations.

John F. Kennedy moon landing speech made 62 years ago

On May 25, 1961, John F. Kennedy addressed the U.S. Congress, inspiring a nation to a moon landing. The Apollo missions, and the dream of a return to the moon.

Scientists find 19,000 undersea volcanoes

A team of scientists has just discovered more than 19,000 undersea volcanoes, aka seamounts. This almost doubles how many we knew existed before.

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.