Headlines

Low-Earth orbit is just 2.8 days from disaster

Low-Earth orbit is more crowded—and fragile—than it looks. Satellites constantly weave past each other, burning fuel and making dozens of evasive maneuvers every year just to stay safe. A major solar storm could disable navigation and communications, turning that careful dance

AI bosses are creating a new problem for gig workers

For millions of gig workers driving for companies such as Uber Eats, DoorDash and Deliveroo, there is no human manager to call, no supervisor to appeal to and no office to walk into. Decisions about pay, performance, penalties and access to work are made by algorithms.

The Rubin Observatory will rapidly detect more supernovae

In our galaxy, a supernova explodes about once or twice each century. But historical astronomical records show that the last Milky Way core-collapse supernova seen by humans was about 1,000 years ago. That means we've missed a few. But with the Vera Rubin Observatory poised to

Scientists turn tumor immune cells into cancer killers

Scientists at KAIST have found a way to turn a tumor’s own immune cells into powerful cancer fighters—right inside the body. Tumors are packed with macrophages, immune cells that should attack cancer but are usually silenced by the tumor environment. By injecting a specially

Deep-sea fishing could undermine valuable tuna fisheries

A new study led by scientists at Woods Hole Oceanographic Institution (WHOI), along with international partners, finds that proposed commercial fishing in the deep ocean could have serious consequences for bigeye tuna, one of the world's most valuable and widely consumed fish.

How dangling moss saves blue manakin eggs from hungry birds

If something exists in nature, there is most likely a very good reason for it. While there are exceptions, many features "selected" by evolution serve a purpose. Take the blue manakin, a small bird commonly found in southeastern Brazil. Like many birds, it builds nests that

The hidden reason cancer immunotherapy often fails

Cancer immunotherapy has been a game-changer, but many tumors still find ways to slip past the immune system. New research reveals a hidden trick: cancer cells can package the immune-blocking protein PD-L1 into tiny particles that circulate through the body and weaken

Intermittent black hole jets are like a 'cosmic volcano'

When astronomers look out into the cosmos, they see supermassive black holes (SMBH) in two different states. In one state, they're dormant. They're actively accreting only a tiny amount of matter and emit only faint, weak radiation. In the other, they're more actively accreting

NASA testing advances space nuclear propulsion capabilities

Nuclear propulsion and power technologies could unlock new frontiers in missions to the moon, Mars, and beyond. NASA has reached an important milestone advancing nuclear propulsion that could benefit future deep space missions by completing a cold-flow test campaign of the

443-million-year-old fossils reveal early vertebrate eyes

Scientists analyzing 443-million-year-old Scottish fossils have uncovered the early evidence that some of the first groups of vertebrates possessed surprisingly advanced eyes and traces of bone, reshaping our understanding of how the vertebrate body first evolved.

Study calls for action to combat online abuse of sportswomen

Stronger policies and accountability measures to safeguard women athletes online are being called for, as part of a new study on the issue focusing on the case of former footballer Joey Barton. A team from the universities of Manchester, Chester, Hull, Durham and Loughborough

Probing the jet base of M87's supermassive black hole

Some galaxies eject powerful streams of charged particles—jets—from their centers into space. The prominent jet of Messier 87 (M87) in the constellation Virgo is visible over distances of 3,000 light-years and can be observed over the full electromagnetic spectrum. It is

The first direct observation of a liquid charge density wave

Charge density waves (CDWs) are ordered, crystal-like patterns in the arrangement of electrons that spontaneously form inside some solid materials. These patterns can change how electricity flows through materials, in some cases prompting the emergence of superconductivity or

The fat you can’t see could be shrinking your brain

Where your body stores fat may matter just as much as how much you carry—especially for your brain. Using advanced MRI scans and data from nearly 26,000 people, researchers identified two surprising fat patterns tied to faster brain aging, cognitive decline, and higher

AI that talks to itself learns faster and smarter

AI may learn better when it’s allowed to talk to itself. Researchers showed that internal “mumbling,” combined with short-term memory, helps AI adapt to new tasks, switch goals, and handle complex challenges more easily. This approach boosts learning efficiency while using far