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Space
Were these polygonal cracks on Venus once on a seafloor?
Sprawling, huge cracks on Venus have long puzzled scientists. A new study suggests the polygon shapes formed from drying mud on an ancient seafloor.
August 15, 2026
Astronomy Essentials
Tonight
Visible planets and night sky guide for August
Visible planets and night sky guide: Look for Venus - at its greatest distance from the sunset - shining brightly in the west next to the waxing crescent moon.
Earth
Human World
Ancient Amazon civilization might have been home to millions
Laser surveys have revealed hundreds of earthworks in the Amazon. Researchers estimate the ancient Amazon civilization could have supported 3 million people.
August 14, 2026
Astronomy Essentials
What’s a globular cluster? The Milky Way has about 150
A globular cluster is a spherical collection of stars orbiting in the halo of spiral galaxies. Our own Milky Way galaxy has over 150 globular clusters.
August 14, 2026
Human World
Today's Image
Total solar eclipse August 12, 2026: Best images
Total solar eclipse August 12! Whether you saw it or not from your location, you can experience it! See the best images from our community here.
August 12, 2026
Astronomy Essentials
Total solar eclipse August 12: EarthSky livestream and more
The Arctic, Greenland, Iceland and Spain will have a total solar eclipse on August 12, 2026. Parts of Europe and North America will see a partial.
August 12, 2026
Astronomy Essentials
Will you see the Jupiter-Mercury conjunction on August 15?
A conjunction is when 2 objects share the same right ascension. The Jupiter-Mercury conjunction on August 15 is the next one. Look for them before sunrise.
August 12, 2026
Human World
5th batch of Pentagon UAP files: Orbs and triangles
The 5th batch of the Pentagon UAP files was released on August 7, 2026. The videos, documents and images include reports of more orbs, triangles and more.
August 11, 2026
Astronomy Essentials
Perseid meteor shower 2026! It’s time to watch
The Perseid meteor shower peaks this week! It's best between midnight and dawn. The peak is August 12 and 13 before dawn, but watch around those mornings, too.
August 11, 2026
Astronomy Essentials
How to watch a solar eclipse safely: tips here
Here are some great tips to watch a solar eclipse safely in a variety of ways, using filters, pinhole cameras and other viewing methods.
August 11, 2026
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