Category Astronomy/Space

The new big thing in magnetics is altermagnetism, a form of magnetism that promises to power the next-generation of electronics. Unlike ferromagnets, like a fridge magnet, where all internal atomic spins align to create a strong magnetic field, altermagnets have no net magnetic pull (strongly magnetic on the inside, but appears non-magnetic on the outside). This is similar to antiferromagnets where internal spins cancel each other out...

Dark energy may be alive and changing, reshaping the cosmos in ways we’re only beginning to uncover. New supercomputer simulations hint that dark energy might be dynamic, not constant, subtly reshaping the Universe’s structure. The findings align with recent DESI observations, offering the strongest evidence yet for an evolving cosmic force.

Since the early 20th century, scientists have gathered convincing evidence that the Universe is expanding — and that this expansion is accelerating...

A new study led by researchers from Oxford University, Southwest Research I...

A distant supermassive black hole has set a new cosmic record, unleashing the brightest flare ever seen as it devoured a gigantic star that wandered too close. A colossal black hole 10 billion light-years away has been caught devouring one of the universe’s biggest stars, unleashing a flare 30 times brighter than any seen before. The flare, detected by Caltech’s ZTF, likely marks a tidal disruption event — when a star is shredded by a black hole’s gravity.

The Universe’s most massive stars typically end their lives in spectacular explosions known as supernovae before collapsing into black holes. But one enormous star seems to have met a very different fate...