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Space
Did Webb find a black hole formed by a direct collapse?
Astronomers used data from Webb to probe a black hole that might have formed from direct collapse between two interacting galaxies.
July 17, 2025
Brightest Stars
Exquisite Albireo, a favorite and colorful double star
Albireo, in the constellation Cygnus, is a favorite for stargazers. Through a small telescope, it appears as a beautiful gold star with a dimmer blue companion.
Earth
Sun
Sun news: Beautiful twisting prominence yesterday
Sun news July 17, 2025. Yesterday evening we saw a giant column of solar plasma twisting away from the southern solar pole, appearing like a massive tornado.
July 17, 2025
Astronomy Essentials
Tonight
Visible planets and night sky guide for July
Visible planets and night sky guide. Look for Mars after sunset in the west tonight. You might also see the bright star Regulus closer to the sunset point.
July 17, 2025
Space
Interstellar object Comet 3I/ATLAS: What we know now
We have a new interstellar object visiting our solar system! Comet 3I/ATLAS is speeding through our neighborhood. Get finder charts here.
July 16, 2025
Space
Are dark dwarfs lurking in the heart of the Milky Way?
Do dark dwarfs - theoretical dwarf stars made of dark matter - exist in our galaxy? New research suggests how and where to find them.
July 16, 2025
Brightest Stars
Summer Triangle star Deneb is distant and luminous
When you gaze at the bright star Deneb, you’re gazing across thousands of light-years of space at one of the bright stars of the huge Summer Triangle asterism.
July 16, 2025
Earth
Tropical disturbance to impact Gulf Coast this week
A tropical disturbance will bring wind and rain to the Gulf Coast states this week. It has the potential to strengthen into Tropical Storm Dexter.
July 15, 2025
Earth
Grand Canyon fire destroys historic lodge, trails closed
Fire at the Grand Canyon destroyed a historic lodge and closed most hiking trails inside the canyon. Wildfires have also closed Black Canyon of the Gunnison.
July 15, 2025
Earth
Celebrate Arctic Sea Ice Day with belugas, bears and more
Arctic Sea Ice Day is today, July 15, 2025. And you can participate! Snap pics from a Beluga Boat with attached live cams and classify the whale bits you see.
July 15, 2025
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