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Inbound: Astronomers Discover Third Interstellar Object

By David Dickinson - July 02, 2025

A newly discovered object may give astronomers an opportunity to study an interstellar visitor like never before. The object (A11pl3Z) is currently at +18th magnitude, moving slowly along the border of the constellations Serpens Cauda and Sagittarius, right near the galactic plane. The object was captured on July 2nd by the Deep Random Survey remote telescope in Chile. The Asteroid Terrestrial-impact Last Alert System (ATLAS) based in Rio Hurtado made the discovery on July 1st. Sam Deen soon backed this up with pre-discovery images from worldwide ATLAS sites in Chile, Hawaii and South Africa from June 25-29.

Welcome to the New, Ad-Free Universe Today, Brought to You By 3,000 Space Fans

By Fraser Cain - March 12, 2025

If you're a regular visitor to Universe Today, you've probably noticed that the website looks dramatically different. Simpler, cleaner, without all those pesky intrusive ads. We're in a new era, now. Here's what happened, why I decided to remove the ads from the site, and what you can expect going forward.

Book Review: The Impossible Man

By Mark Mortimer - January 29, 2025

The Los Angeles Fires Got Extremely Close to NASA's JPL Facility

By Andy Tomaswick - January 17, 2025

It's Official, 2024 Was the Hottest Year on Record

By Andy Tomaswick - January 14, 2025

How to Debate a Flat-Earther

By Paul Sutter - January 13, 2025

Top Astronomy Events for 2025

By David Dickinson - December 24, 2024

The Holiday Fireplace Video We Needed

By Evan Gough - November 27, 2024

The Last Arecibo Message Celebrates the Observatory and One of its Greatest Accomplishments

By Matthew Williams - November 24, 2024

NASA's JPL Lays Off Another 325 People

By Nancy Atkinson - November 13, 2024

New Report Details What Happened to the Arecibo Observatory

By Matthew Williams - November 05, 2024

Astronomer Calculates When van Gogh Painted This

By Nancy Atkinson - October 31, 2024

Those Aren't Dyson Spheres, They're HotDOGs

By Brian Koberlein - September 23, 2024

Earlier this year, researchers claimed that they had found infrared signatures for candidate Dyson Sphere megastructures in archival WISE data. Astronomers were skeptical, suggesting that these objects might just be stars visually close to highly luminous "Hot Dust-Obscured Galaxies (HotDOGS)." The number of candidates matches the expected frequency of these chance alignments. This new paper puts a limit on the number of Dyson Spheres in our galactic neighborhood.