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Astronomy Essentials
Deep partial lunar eclipse on August 27-28, 2026
A deep partial lunar eclipse of the full Sturgeon Moon takes place on August 27-28, 2026. Will you be able to see it? Maps and details here.
August 25, 2026
Sun
Sun news: Sunspot region roars with 5 M flares
Sun news August 25, 2026: AR4513 roared back with five M flares, capped by an M7.0 near disk center. A CME from it could be heading our way.
Astronomy Essentials
Tonight
Visible planets and night sky guide for August and September
Visible planets and night sky guide: Love eclipses? Don’t miss these tips for making the most of the upcoming lunar eclipse!
August 24, 2026
Human World
Space
Pluto demoted to dwarf planet 20 years ago today
Pluto is the largest of many small bodies in the outer solar system. That's partly why it was demoted from major planet to dwarf planet in 2006.
August 24, 2026
Space
Pluto’s atmosphere is thinning toward a collapse
Scientists detected that Pluto's atmosphere is thinning as it moves farther away from the sun in its orbit. Is its atmospheric collapse already happening?
August 23, 2026
Earth
Human World
Space
1st photo of Earth from the moon 60 years ago
As NASA plans to land astronauts on the moon with the Artemis IV mission in 2028, it's fun to see this 1st photo of Earth taken from the moon.
August 23, 2026
Constellations
Sagittarius the Archer is home to deep-sky wonders
The zodiacal constellation Sagittarius the Archer contains the center of the Milky Way and a famous asterism known as the Teapot.
August 23, 2026
Space
A first! 3 supermassive black holes discovered in 1 galaxy
For the first time, astronomers have discovered 3 supermassive black holes in a single galaxy in the early universe. Two of them are merging!
August 21, 2026
Space
Voyager 2 confirms Neptune’s rings on August 22 in 1989
NASA's Voyager 2 confirmed the discovery of Neptune's rings on August 22, 1989, when it took images of a faint, continuous ring system around the planet.
August 21, 2026
Favorite Star Patterns
Teapot of Sagittarius points to the Milky Way’s center
As you gaze toward the famous Teapot asterism in the constellation Sagittarius, you are looking toward the center of our Milky Way galaxy.
August 21, 2026
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