Water is all around us, yet its surface layer—home to chemical reactions that shape life on Earth—is surprisingly hard to study. Experiments at SLAC's X-ray laser are bringing it into focus.

If you’ve been following astronomy headlines, you might have noticed a curious new arrival to the neighborhood: Comet 3I/ATLAS. It’s not just another “regular” comet from the outer solar system–this one’s an interstellar visitor, meaning it was born around another star entirely.

For the first time, scientists have detected two black hole mergers with spins so unusual they may reveal a new generation of cosmic collisions. The twin discoveries, labeled GW241011 and GW241110, were announced by the international LIGO, Virgo, and KAGRA collaborations—teams that have been tuning their instruments to detect the faintest ripples in space and time. Each signal, lasting less than a second, was a final whisper from black holes that collided billions of years ago.

Michael Pravica talks about how consciousness can transcend the physical realm.

In a paper published in The Astrophysical Journal Letters, the international LIGO-Virgo-KAGRA Collaboration reports on the detection of two gravitational wave events in October and November of 2024 with unusual black hole spins. This observation adds an important new piece to our understanding of the most elusive phenomena in the universe.

In an extraordinary advancement for astrophysics, the international LIGO-Virgo-KAGRA Collaboration has announced the detection of two gravitational wave events from last year that showcase unprecedented black hole spin characteristics. Published today in The Astrophysical Journal Letters, their findings unravel intricate details about black hole mergers, significantly deepening our understanding of these enigmatic cosmic phenomena. These detections open new frontiers in the quest to decode the fundamental physics governing black holes, their formation, and evolution in the universe.

Scientists have "heard" the symphony of two newborn black holes — each created when its respective parent black holes crashed together and merged. One of those collision events, in fact, was the first of its kind.

The international LIGO-Virgo-KAGRA Collaboration reports the observations of two record-breaking events in gravitational wave observations. They were detected in October and November 2024, and they might be a crucial step forward in our understanding of the ripples in space-time and the events that create them.

A pair of once-in-a-lifetime comets are rocketing through our skies right now, and it's a rare treat because they won't be back for hundreds of years. The comets, C/2025 A6 (Lemmon) and C/2025 R2 (SWAN), look similar. Both comets have already had their brightest nights on Oct. 20 and Oct. 21. But if you're out and about this final week of October, you can still spot these green gaseous globes and their streaming tails.

A new study reports nanoparticles that send messenger RNA, genetic instructions that tell cells to make proteins, directly to the pancreas with 99 percent selectivity.

Metallicity is a fundamental part of the Universe. The Big Bang created mostly hydrogen, the simplest and lightest element, and a tiny bit of helium, the second lightest element. Those elements gather together in large quantities to form stars. For rocky planets to form, stars had to form first.

A new study led by UNLV scientists sheds light on how planets, including Earth, formed in our galaxy—and why the life and death of nearby stars are an important piece of the puzzle.