A strange double flash in a distant galaxy may be the first glimpse of a “superkilonova,” a cosmic one‑two punch that fuses ...

Using Georgia State’s CHARA Array, an international team of scientists has uncovered unexpected complexity in how stars explode. Astronomers have obtained images of two stellar explosions, called ...

We close out the list with a third Rebecca Yarros novel, the latest installment in the "Empyrean" series that were the third and fourth most-read books this year. After 18 months of college, Violet ...

Here is a look at just a few of the biggest developments in astronomy that The Debrief has been tracking in 2025.

From an interstellar comet to breathtaking auroras and from brand-new rockets to iconic space telescopes, here are some of our favorite images from the cosmos in 2025 ...

Astronomers analyzing data from an array of telescopes — including the W. M. Keck Observatory atop Mauna Kea on the Big ...

One of Ireland’s oldest astronomical institutions is continuing its centuries-old tradition of observing the winter solstice.

The distance feat comes as the Mars Perseverance rover reaches another milestone. After nearly five years of roaming the Red Planet, it’s now traveled almost 25 miles. With the help of autonomous ...

3I/ATLAS has now made its closest approach to the sun and Earth and is now heading back out toward the outer solar system. On ...

Astronomers have repeatedly observed events near a distant star that mirror processes from the early solar system’s ...

The livestream will now begin Friday at 11 p.m. EST, Dec. 19 (0400 GMT on Dec. 20), weather permitting, after rain prevented ...

Former Astronomer Chief People Officer Kristin Cabot made headlines after she and the company’s former CEO Andy Byron appeared on the kiss cam at the July 16 Coldplay concert — but what’s the deal ...