Sign Up for Our Amazing Newsletter!
A daily update by email. Science news, great photos, sky alerts.
Your email address will only be used for EarthSky content.
Privacy Policy
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
EarthSky
One Earth. One Sky. EarthSky.
Tonight
Space
Sun
Earth
Human
Best Places to Stargaze
EarthSky Community Photos
About
Store
Donate
Contact Us
Subscribe
Tonight
Tonight
Brightest Stars
Astronomy Essentials
Moon Phases
Clusters Nebulae Galaxies
Favorite Star Patterns
Constellations
Constellations
Meet Crux, the constellation of the Southern Cross
Kelly Kizer Whitt
May 24, 2026
Astronomy Essentials
Tonight
Visible planets and night sky guide for May
Marcy Curran
May 24, 2026
Brightest Stars
Meet Regulus, Leo the Lion’s Heart and brightest star
Larry Sessions
May 22, 2026
Space
Sun
Earth
Human
Human
Spaceflight
Best Places to Stargaze
Community Photos
View Community Photos
Trending
Submit a Photo
About
Store
Donate
Mount Hekla was called Gateway to Hell
Deanna Conners
November 1, 2016
min read
2016’s longest lunar month starts October 30
Bruce McClure
October 30, 2016
min read
Warm ocean currents are slowing down
Shireen Gonzaga
October 12, 2016
min read
How to ask a horse what it wants
Shireen Gonzaga
October 5, 2016
min read
Clues to ancient earthquakes in caves
Deanna Conners
October 3, 2016
min read
Shark and tuna convergent evolution
Shireen Gonzaga
September 28, 2016
min read
Tallest peak in the US Arctic is …
Deanna Conners
August 23, 2016
min read
Say hello to the death’s-head hawkmoth
Alex Reshanov
August 13, 2016
min read
Lifeform of the week: Sea stars
Alex Reshanov
August 6, 2016
min read
Watch wind flowing across US in real time
Matt Daniel
Eleanor Imster
July 16, 2016
min read
Previous
5 / 291
Next
Tags
Weather
Videos
Video
No items found.