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Brightest Stars
Sun
Sun news April 27: Sun-stuff brings auroras! More tonight?
Sun news for April 27, 2024. Once again, auroras danced in high-latitude skies last night. Will we have even more auroras tonight?
April 27, 2024
Earth
Human World
Join the worldwide 2024 City Nature Challenge this weekend!
This weekend, April 26-29, 2024, join the global City Nature Challenge and record the biosphere in your neighborhood to help track real-time change.
April 27, 2024
Astronomy Essentials
Tonight
Visible planets and night sky guide for April and May
Visible planets and night sky guide for April and May 2024. This morning, April 27, watch for the moon close to the massive ruby red star Antares.
April 27, 2024
Earth
What are waterspouts, and how do they form?
Waterspouts are essentially tornadoes that form over water. They happen all over the world. In the U.S., they're most common near Florida and the Gulf of Mexico.
April 26, 2024
Space
Was asteroid Kamo’oalewa blasted from this moon crater?
A group of astronomers say their data point to a lunar origin for the near-Earth asteroid Kamo'oalewa, and that crater Giordano Bruno is the likely source.
April 25, 2024
Space
Brown dwarf auroras might cause methane emission
For the 1st time, astronomers have found glowing methane on a brown dwarf. The researchers say that auroras in the brown dwarf's atmosphere may cause it.
April 25, 2024
Space
Asteroid hunt by Hubble telescope using AI
Astronomers used the Hubble Space Telescope to go on an asteroid hunt. They found over 1,000 previously unknown small asteroids in the asteroid belt.
April 25, 2024
Constellations
Meet the Chamaeleon, a southern constellation
The constellation Chamaeleon the Chameleon is a dark patch of sky that lies deep in the Southern Hemisphere and is visible any night of the year.
April 25, 2024
Space
Io’s volcanoes have been erupting for billions of years
A new study reveals Io's volcanoes have been erupting for billions of years, ever since the small moon of Jupiter 1st formed along with our solar system.
April 24, 2024
Tonight
Daytime moon is up after sunrise now
Watch for the moon in the morning sky - after sunrise - for a few days after full moon. Look west after the sun comes up!
April 24, 2024
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