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Tonight

Sun news UPDATE: Double Bam! The sun releases a 2nd X flare
Sun news February 21, 2024. UPDATE: BAM! X Flare! The huge active region AR3590 blasted an X1.8 flare at 23:07 UTC on February 21. Read more.
C. Alex Young
Raúl Cortés
Armando Caussade
February 22, 2024

Astronomy Essentials

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47 days to total solar eclipse. Eclipse fun facts
February 21, 2024
Visible planets and night sky for February
February 21, 2024
Mars in 2024: Back in the morning sky
February 17, 2024
Year’s latest solar noon happens on February 11
February 11, 2024

Brightest Stars

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Sun news UPDATE: Double Bam! The sun releases a 2nd X flare
February 22, 2024
Meet Pollux: The brighter twin star of Gemini
February 20, 2024
Castor is 6 stars in one
February 20, 2024
Can you see Canopus, the 2nd-brightest star?
February 18, 2024

Constellations

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Meet Canis Minor the Lesser Dog in February
February 7, 2024
Meet Taurus the Bull in the February evening sky
February 6, 2024
Catch a glimpse of Monoceros the Unicorn in the Milky Way
January 31, 2024
Dorado and Mensa house the Large Magellanic Cloud
January 21, 2024

Clusters Nebulae Galaxies

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Meet the Crab Nebula, remnant of an exploding star
January 14, 2024
The Local Group is our galactic neighborhood
October 24, 2023
Triangulum galaxy is 2nd-closest to Milky Way
October 24, 2023
Double Cluster in Perseus on October evenings
October 11, 2023

Favorite Star Patterns

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The Hyades star cluster: The Face of Taurus the Bull
January 25, 2024
Meet the Winter Circle, aka the Winter Hexagon
January 24, 2024
The Pleiades – or 7 Sisters – known around the world
November 26, 2023
Great Square of Pegasus gallops into the autumn sky
September 27, 2023
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