NASA spots a new comet flying in from a distant star system
Astronomers have spotted a new comet, moving on a trajectory that indicates that it whizzed into our solar system from interstellar space and is just passing through.
It’s only the third time scientists have discovered this kind of visitor from outside our solar system. The first two, ‘Oumuamua and Comet Borisov, intrigued astronomers because of the chance to observe pieces from another star system beyond our own.
“This is like our chance to randomly sample what’s going on in the rest of the galaxy,” University of Oxford astrophysicist Chris Lintott recently told NPR, saying he and most other researchers really hadn’t given much thought to interstellar objects until the discovery of the first one in 2017.
“I think the idea that we could see bits of other solar systems flying through our own really captivated the attention of a whole lot of people who started trying to work on these things,” says Lintott.
NASA has named this latest interstellar object 3I/ATLAS, after detecting it this week with the NASA-funded ATLAS (Asteroid Terrestrial-impact Last Alert System) survey telescope in Rio Hurtado, Chile.
The comet is now about 420 million miles (670 million kilometers) away. Astronomers around the world are racing to use telescopes to learn more about its size and physical properties.
It’s moving fast, but poses no threat to Earth, according to NASA. The object will remain visible to ground-based telescopes through September, then will pass too close to the sun for observations to occur. But in December, it will re-emerge, allowing for more studies.
And astronomers are anticipating an imminent bonanza of new discoveries of interstellar objects, thanks to the Vera C. Rubin Observatory, a brand new facility with unique capabilities that should allow it to spot lots of interstellar objects in the years to come.
Built with funding from the National Science Foundation and the Department of Energy, the facility will collect a mind-boggling amount of data on the entire southern night sky during a decade-long survey slated to start later this year.
Judge to hold hearing on whether Kilmar Abrego Garcia is being vindictively prosecuted
A federal judge this week canceled the trial of Kilmar Abrego Garcia, and scheduled a hearing on whether the prosecution is being vindictive in pursuing a human smuggling case against him.
Thailand and Cambodia sign new ceasefire agreement to end border fighting
In addition to ending fighting, the agreement calls for no further military movements by either side and no violations of either side's airspace for military purposes.
Top Instagram reels from Goats and Soda in 2025: Plumpy’Nut, aid cuts, soccer grannies
Our most-viewed Instagram videos include reports from a Rhode Island factory that makes special food for malnourished children and from a tournament for soccer-playing "grannies."
‘The Rest of Our Lives’ takes readers on a midlife crisis road trip
America's literary highways may be plenty crowded with middle-aged runaways fleeing lives that increasingly feel like a bad fit. But Ben Markovits adds a moving tale to the collection.
Hunker down with these 13 mysteries and thrillers from 2025
Mysteries and thrillers are enjoyable no matter the season, but there's something extra satisfying about curling up in the winter with a warm drink and an all-engrossing read. Here's what we suggest.
Should the U.S. model its vaccine policy on Denmark’s? Experts say we’re nothing alike
The Trump administration wants to revamp U.S. childhood vaccination recommendations to align with some other peer nations, including one tiny country in northern Europe.
