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Plants & Animals Mar 26, 2026

Damselfish pick-up lines could have regional accents

Courtship calls among two species of fish commonly found on Australian coral reefs have been described, and researchers say their "accents" can vary significantly between regions. Scientists led by the Australian Institute ...

Astronomy Mar 25, 2026

Distant galaxy fades 20-fold in just two decades, challenging how supermassive black holes evolve

An international team led by a researcher at the Chiba Institute of Technology has discovered an extremely rare phenomenon: a galaxy about 10 billion light-years away whose brightness dropped to one-twentieth of its original ...

Astronomy Mar 25, 2026

Unusual signal may prove existence of primordial black holes

It may well take years to prove, but a pair of University of Miami astrophysicists could be on the verge of a cosmic breakthrough that will confirm the existence of primordial black holes and the role they play in one of ...

Astronomy Mar 24, 2026

Chandra resolves why black holes hit the brakes on growth

Astronomers have an answer for a long-running mystery in astrophysics: why is the growth of supermassive black holes so much lower today than in the past? A study using NASA's Chandra X-ray Observatory and other X-ray telescopes ...

Astronomy Mar 13, 2026

A 100-solar-mass black hole merger ripples spacetime, and may flash in gamma rays

An international team from China and Italy has reported a possible cosmic encore to the landmark 2017 multi-messenger discovery. In November 2024, the LIGO-Virgo-KAGRA observatories detected gravitational waves from a binary ...

Astronomy Mar 11, 2026

Oval orbit casts new light on black hole–neutron star mergers

Scientists have uncovered the first robust evidence of a black hole and neutron star crashing together but orbiting in an oval path rather than a perfect circle just before they merged. This discovery challenges long-standing ...

Astronomy Feb 19, 2026

Could a recently reported high-energy neutrino event be explained by an exploding primordial black hole?

The KM3NeT collaboration is a large research group involved in the operation of a neutrino telescope network in the deep Mediterranean Sea, with the aim of detecting high-energy neutrino events. These are rare and fleeting ...

Astronomy Feb 18, 2026

Cosmic predators: How supermassive black holes slow star growth in nearby galaxies

Intense radiation emitted by active supermassive black holes—thought to reside at the center of most, if not all, galaxies—can slow star growth not just in their host galaxy, but also in galaxies millions of light-years away, ...

Astronomy Feb 14, 2026

Astronomers trace a star's three-year infrared glow to black hole birth

In 2014, a NASA telescope observed that the infrared light emitted by a massive star in the Andromeda galaxy gradually grew brighter. The star glowed more intensely with infrared light for around three years before fading ...

Astronomy Feb 13, 2026

Hunting dark matter 'stars' that mimic black holes

Hypothetical dark matter stars known as "boson stars" could leave telltale ripples across the cosmos, offering researchers a new way to probe the invisible forces shaping the universe. In 2019, a strange event was observed ...

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