A small asteroid, known as 2025 TF, flew over Antarctica on October 1, 2025, at an altitude of only 266 miles.
Earth has dodged a celestial bullet, but the moon might not be so lucky, and that has scientists keeping their telescopes and minds trained on a massive asteroid called “2024 YR4.” That’s not its ...
2025 PN7 is a small, dim asteroid that appears to orbit Earth, according to EarthSky. Believed to be a piece of the moon that ...
The universe has quasi-moons, mini-moons, and moonlets, but no official definition of what counts as a moon.
The Earth often gets a few visitors in the solar system, but some stick around for a while. Here's what to know about the ...
When most people imagine Earth's asteroid belt, they picture a dense ring of orbiting rocks, locked in place between Mars and Jupiter. Yet, the truth is far more captivating—and urgent. According to a ...
Perihelion for 3I/ATLAS takes place on Oct. 30, when the interstellar interloper will be 1.35 astronomical units (125 million ...
Astronomers have identified 2025 PN7, a small, faint asteroid, as a quasi-moon that has been orbiting near Earth for ...
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Viewing 3I/ATLAS in the USA: When and how you can get a glimpse of a comet from another star system?
Discover when and how to observe the interstellar comet 3I/ATLAS in the U.S. in late 2025. Learn about its features, viewing ...
Smithsonian Magazine on MSN
The Dinosaurs of North America Were Thriving Up Until an Asteroid Wiped Them Off the Face of the Earth, Scientists Argue
A new study of dinosaur biodiversity challenges the belief that the megafauna were on their way out 66 million years ago ...
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