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Sun activity: Aurora alert! 4 blobs of sun coming our way
C. Alex Young
November 30, 2023
Astronomy Essentials
Visible planets and night sky for November and December
Marcy Curran
November 29, 2023
Astronomy Essentials
Thinking of buying a telescope? Read this 1st
Armando Caussade
November 29, 2023
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Tonight
Sun activity: Aurora alert! 4 blobs of sun coming our way
Sun activity for November 30 is low, but excitement is on the way to Earth! Four coronal mass ejections should bring auroras late tonight and tomorrow night.
C. Alex Young
Raúl Cortés
Armando Caussade
November 30, 2023
Visible planets and night sky for November and December
November 29, 2023
Meteor shower guide: Up next the Geminids and the Ursids
November 20, 2023
Look for Mercury after sunset, early December 2023
December 1, 2023
2023’s most-illuminated quarter moon is December 4-5
December 1, 2023
How 3200 Phaethon may create debris triggering the Geminids
December 1, 2023
Mirfak is the brightest star in Perseus the Hero
December 3, 2023
Subscribe now! A daily update with Science news, great photos, sky alerts.
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Astronomy Essentials
View All
Visible planets and night sky for November and December
Marcy Curran
November 29, 2023
Thinking of buying a telescope? Read this 1st
Armando Caussade
November 29, 2023
Mars in 2023: Mars is too close to the sun to see now
Deborah Byrd
November 25, 2023
Winter meteor showers are here: Top 10 tips for watching
EarthSky Voices
November 23, 2023
Brightest Stars
View All
Sun activity: Aurora alert! 4 blobs of sun coming our way
C. Alex Young
November 30, 2023
Achernar is the End of the River of Eridanus constellation
Larry Sessions
November 22, 2023
Al Risha binds the Fishes of Pisces together
Deborah Byrd
November 21, 2023
Meet Hamal, an ancient equinox star
Editors of EarthSky
November 19, 2023
Constellations
View All
The constellation Sculptor contains the South Galactic Pole
Kelly Kizer Whitt
November 23, 2023
Tucana the Toucan is home to the Small Magellanic Cloud
Kelly Kizer Whitt
November 17, 2023
Pegasus the Flying Horse, and the best sky story ever
Kelly Kizer Whitt
November 12, 2023
The constellation Andromeda the Chained Lady
Kelly Kizer Whitt
November 12, 2023
Clusters Nebulae Galaxies
View All
The Local Group is our galactic neighborhood
Editors of EarthSky
October 24, 2023
Triangulum galaxy is 2nd-closest to Milky Way
Bruce McClure
October 24, 2023
Double Cluster in Perseus on October evenings
Bruce McClure
October 11, 2023
Do the Large and Small Magellanic Clouds need new names?
Editors of EarthSky
October 3, 2023
Favorite Star Patterns
View All
The Pleiades – or 7 Sisters – known around the world
Bruce McClure
November 26, 2023
Great Square of Pegasus gallops into the autumn sky
Deborah Byrd
September 27, 2023
Teapot of Sagittarius points to Milky Way center
Bruce McClure
August 11, 2023
The Scorpion’s Crown and its stellar neighborhood
Shireen Gonzaga
July 27, 2023