Sign Up for Our Amazing Newsletter!
A daily update by email. Science news, great photos, sky alerts.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Space
The Day the Earth Smiled: July 19, 2013
July 19 is the 13th anniversary of The Day the Earth Smiled, the 3rd-ever image of Earth from the outer solar system, taken by the great Cassini spacecraft.
July 19, 2026
Favorite Star Patterns
The Northern Cross: Find the backbone of the Milky Way
The Northern Cross is an asterism - or recognizable pattern of stars - within the constellation Cygnus the Swan. Here's how to find it in your sky.
July 19, 2026
Human World
Space
The 1st footsteps on the moon: Celebrate with Moon Day
Tomorrow is the 57th anniversary of humanity's historic Apollo moon landing and the 1st human footsteps on the moon. And it's also International Moon Day.
July 19, 2026
Sun
Sun news: Quiet Sun, but a fast wind is coming
Sun news July 19, 2026: The sun took a breather, but a big coronal hole could send fast solar wind our way.
July 19, 2026
Astronomy Essentials
Tonight
Visible planets and night sky guide for July
EarthSky's visible planets and night sky guide. Watch a video about the night sky this week. Find out about 2 meteor showers!
July 19, 2026
Earth
Noctilucent clouds are back: Look for them now!
Noctilucent clouds are back. The season is underway! Learn about these stunning night-shining clouds and how to see them. Plus, see a gallery of them here.
July 18, 2026
Space
10,000 black holes are missing, but we’ve finally found 1
Astronomers think the Omega Centauri globular cluster should be home to 10,000 black holes of a stellar-mass size. But they've never found one ... until now.
July 17, 2026
Space
Infectious microbes on Mars could become even more deadly
A new thesis examines how earthly pathogenic microbes on Mars could survive and potentially become even more dangerous for future astronauts.
July 17, 2026
Favorite Star Patterns
Coathanger cluster: This star pattern looks like its name
The Coathanger cluster resembles its namesake and is easy to spot with binoculars, using the star Albireo - part of the Summer Triangle - as a signpost.
July 17, 2026
Space
Hidden planet found around nearby star Beta Pictoris
Astronomers have found a hidden planet orbiting the star Beta Pictoris. This previously unseen world is now the faintest planet ever imaged from Earth.
July 16, 2026
Subscribe now! A daily update with Science news, great photos, sky alerts.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Space
View All
Astronomy Essentials
View All
Earth
View All
Human World
View All
