Astronomy

Astronomers have discovered a huge filament of hot gas bridging four galaxy clusters. At 10 times as massive as our galaxy, the thread could contain some of the Universe’s ‘missing’ matter, addressing a decades-long mystery.

Restricting calories has been linked to living longer in many studies, and now it seems that the drug rapamycin has nearly the same effect, at least in animals

Restricting calories has been linked to living longer in many studies, and now it seems that the drug rapamycin has nearly the same effect, at least in animals

Rocks in some parts of the UK have the potential to produce natural hydrogen, but it remains unclear whether the gas is present in economically viable quantities

Rocks in some parts of the UK have the potential to produce natural hydrogen, but it remains unclear whether the gas is present in economically viable quantities

The early universe was shrouded in darkness. Just hundreds of millions of years after the Big Bang, a thick fog of hydrogen gas choked the cosmos, blocking light from traveling far. At some point, this gas became ionized, stripped of its electrons. Thanks to the James Webb Space Telescope, astronomers have identified the culprit: low-mass starburst galaxies emitting huge amounts of ultraviolet light. In just one patch of sky. They discovered 83 of these galactic powerhouses in one part of the sky at a time when the Universe was only 800 million years old.

An international team of astronomers using the [*Cosmology Large Angular Scale Surveyor*](https://sites.krieger.jhu.edu/class/) (CLASS) [reported the first-ever measurement](https://hub.jhu.edu/2025/06/11/telescopes-look-at-cosmic-dawn/) announced the first-ever detection of radiation from the cosmic microwave background (CMB) interacting with the first stars in the Universe.

The infected are back, over two decades since they first appeared in 2002's 28 Days Later — and this film is the best of the three, says film columnist Simon Ings

The infected are back, over two decades since they first appeared in 2002's 28 Days Later — and this film is the best of the three, says film columnist Simon Ings

The alignment occurs hours after the moon hits its third quarter phase.

A new Chinese refueling spacecraft met up with an older satellite in high Earth orbit this month, apparently marking a step forward in orbital servicing.

Knee osteoarthritis is often treated via non-drug therapies, and now we have an idea of which ones work best

Knee osteoarthritis is often treated via non-drug therapies, and now we have an idea of which ones work best

The Supreme Court has decided to uphold a state ban on gender-affirming care for minors in U.S. v. Skrmetti

Mars will remain in the Spring Triangle until mid-September.

American military engineers designed the GBU-57/B bomb to devastate deeply buried bunkers without radioactive fallout. It’s the only nonnuclear weapon that can reach Iran’s hardest target

More than 500 students with 75 teams from around the world participated in the 31st year of NASA’s Human Exploration Rover Challenge (HERC) on April 11 and April 12, 2025, near NASA’s Marshall Space Flight Center in Huntsville, Alabama. Participating teams represented 35 colleges and universities, 38 high schools, and two middle schools from 20 states, Puerto Rico, and 16 other nations.

This photo series capturing efforts to save the Chinook salmon of the Klamath river in the western US won the New Scientist Editors Award at the Earth Photo 2025 competition

This photo series capturing efforts to save the Chinook salmon of the Klamath river in the western US won the New Scientist Editors Award at the Earth Photo 2025 competition

Milky Way viewing is at its best right now, especially if you’re in the southern hemisphere. Here's what to look out for, says Abigail Beall