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Posts by
Editors of EarthSky
This planetary nebula has 2 ultra-close stars at its heart
A planetary nebula isn't related to planets. It's an old star, sloughing off its outer layers. Now astronomers have spied 2 ultra-close stars at a planetary nebula's heart. The pair orbits in only 3 hours!
October 24, 2018
How Earth feeds volcanic supereruptions
To better understand where magma gathers in Earth’s crust, researchers studied the Taupo Volcanic Zone of New Zealand, the planet's most active cluster.
October 21, 2018
Powerful jet from the wrong kind of star
Astronomers had theorized that strong magnetic fields prevent jets from forming. Then they found a strongly magnetic neutron star with a jet.
September 26, 2018
Surfer riding a rainbow
Photographer Josh Blash wrote: "I caught this surfer riding a rainbow after a storm moved off the New Hampshire coast last Wednesday."
August 29, 2018
Amazing Kilauea volcano imagery you might have missed
For more than 2 months, lava has been pouring from Hawaii’s Kilauea volcano, destroying homes and remaking the land. A compilation of photos and videos, here.
July 22, 2018
Heads up! It’s a month of eclipses
Partial solar eclipse July 13. Total lunar eclipse July 27. Partial solar eclipse August 11.
July 11, 2018
Astro festivals, star parties, workshops
Summertime is a great time for star parties, in part because, at this time of year, we can see toward the galaxy's center. Plus it's the best time to see Saturn now, and Mars will be bright this summer. Join in, and have fun!
June 25, 2018
Top 10 things about brown recluse spiders
It's their active season. Here are some things you might not know.
April 6, 2018
The colors of stars
A photographer compares the colors of the stars Rigel, Betelgeuse and Sirius.
March 28, 2018
Find Vincent van Gogh’s Big Dipper
Here's an easy astronomy lesson, from a master in the art of loving nature.
March 23, 2018
