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Meet Regulus, Leo the Lion’s Heart and brightest star
Larry Sessions
May 22, 2026
Astronomy Essentials
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Visible planets and night sky guide for May
Marcy Curran
May 22, 2026
Astronomy Essentials
Constellations and signs: What’s the difference?
Guy Ottewell
May 20, 2026
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Baily’s beads seen during a solar eclipse today in 1836
Elizabeth Howell
Deborah Byrd
Don Machholz
May 15, 2026
min read
Today in science: Neil Armstrong’s close call
Deborah Byrd
May 6, 2026
min read
Jan Oort birthday and discovery of the Oort Cloud
Daniela Breitman
April 28, 2026
min read
Why do tinamou birds lay such colorful eggs?
Deanna Conners
April 3, 2026
min read
How to photograph snowflakes from Michael Peres
Deanna Conners
January 28, 2026
min read
How often do 7 eclipses occur in 365 days?
Bruce McClure
January 1, 2026
min read
Goblin sharks, ghost crabs and vampire bats, oh my!
Deanna Conners
October 24, 2025
min read
It’s summer. What’s noon to you? Midday? High noon?
Larry Sessions
June 20, 2025
min read
Will you see colors in aurora? Or do you need a camera?
EarthSky Voices
September 26, 2024
min read
What are gamma ray bursts?
Christopher Crockett
October 14, 2023
min read
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