
Grain-sized magnet hunts for ultraheavy dark matter in uncharted mass range
A magnetically levitated sensor extended the ultraheavy dark-matter search by seven orders of magnitude in mass reach, setting limits without a confirmed detection.
Astronomy and cosmology
Deep Field covers astronomy and cosmology. Telescopes and what they find, planets near and far, and the strange physics of the deep universe, traced back to the journal papers and observatory data behind the headlines.

A magnetically levitated sensor extended the ultraheavy dark-matter search by seven orders of magnitude in mass reach, setting limits without a confirmed detection.
Sep 9, 2026

When a climate cycle and a warming trend collide, oceans pay the price—and scientists worry about what comes next.
Sep 8, 2026

A collapsing light sensor set off a cascade through Japan’s neutrino detector in 2001. Reconstruction introduced protective covers to keep a future implosion from spreading.
Sep 8, 2026

The deceptive calm before a hurricane hits reveals how radar and reality exist in different time zones.
Sep 8, 2026

One survivor's conviction that others endure in the tunnel has transformed the operation from grim certainty into desperate possibility, reshaping every decision rescuers must make in the next critical hours.
Sep 8, 2026

The Pacific's most powerful storms can reshape coastlines from hundreds of miles away, delivering dangerous surf long before—or even if—the hurricane itself never arrives.
Sep 8, 2026

The same waterlogged earth that entombed victims now impedes the rescuers trying to reach them, turning a search for the missing into a race against collapsing terrain.
Sep 8, 2026

As Rwanda's mountain gorillas multiply, conservationists confront a harder problem than poaching: there simply isn't enough forest left.
Sep 8, 2026
When one ocean basin quiets down, another roars to life—forcing forecasters to cover two storm seasons simultaneously.
Sep 8, 2026

How a decade-old wisdom quote finds new life in the scroll—and why it keeps resurfacing when people need it most.
Sep 8, 2026

Germany's manufacturing elite are demanding workers trade shorter hours for less pay, betting they can reshape decades of labor protections before contract talks heat up.
Sep 7, 2026

The actor's journey through forgotten Westerns reveals how he played against type long before he became science fiction's most iconic figure.
Sep 7, 2026

GRB 061201 was the textbook "hostless" burst. A team led from the Purple Mountain Observatory weighs two candidate galaxies against each other and finds the faint one wins on most tests, loses the formal chance-alignment score, and carries one loud caveat: its redshift is fitted rather than measured.
Sep 7, 2026

ALMA detected ionised oxygen in a galaxy seen before the universe was 300 million years old, supporting rapid stellar enrichment while leaving its exact history open.
Sep 7, 2026

The 2025 estimate depended on uncertain motions and neighbouring galaxies. A 2026 follow-up put the merger probability higher, showing why the forecast remains sensitive to the measurements.
Sep 7, 2026

Artificial intelligence led archaeologists to caves in Ireland where they discovered art suggesting humans arrived thousands of years before anyone thought possible.
Sep 7, 2026