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Algol the Demon Star, named for its strange behavior
What's the scariest star in all the heavens? It's Algol the Demon Star, and you can see it on autumn evenings. Here’s the secret of Algol's creepiness!
October 29, 2026
Alpha Cephei, or Alderamin, is a fast-spinning star
Meet Alpha Cephei, in the constellation Cepheus the King. It’s spinning so fast that it appears like a slightly flattened beach ball.
September 30, 2026
Delta Cephei helps measure cosmic distances
Delta Cephei is an inconspicuous variable star in the northern constellation Cepheus the King. This important star helped establish the cosmic distance scale.
September 10, 2026
Fomalhaut is the Loneliest Star once again
Fomalhaut is known as the Loneliest Star because it shines brightly in a dim patch of sky. Saturn joined it in recent years, but is now pulling away.
September 2, 2026
Double star 61 Cygni: Why is it known as the Flying Star?
Compared to other stars, 61 Cygni moves quite rapidly against the background of more distant stars, revealing its proximity to Earth.
August 5, 2026
Meet Delta Scorpii, aka Dschubba
Delta Scorpii, also known as Dschubba, is a variable star in the constellation Scorpius. With your eyes alone, you can check its brightness for yourself.
July 30, 2026
Meet Shaula and Lesath, the Scorpion’s Stinger stars
Shaula and Lesath, the Stinger Stars, mark Scorpius the Scorpion’s tail. Learn how to find this striking constellation in the night sky.
July 28, 2026
Summer Triangle star: Altair is variable and spins fast!
Altair, in the constellation Aquila the Eagle, is one of the closest stars to our solar system. It's variable in an unusual way, and it spins very fast!
July 21, 2026
Summer Triangle star Deneb is distant and luminous
When you gaze at the bright star Deneb, you’re gazing across thousands of light-years of space at one of the bright stars of the huge Summer Triangle asterism.
July 14, 2026
Summer Triangle star: Vega is bright and blue-white
The Summer Triangle star pattern hangs in the east on July and August evenings in the Northern Hemisphere. Its brightest star is blue-white Vega.
July 8, 2026
