Astronomy

Webb Peers into Brilliant Heart of Messier 77

This image of Messier 77 from Webb’s Mid-Infrared Instrument (MIRI) highlights its swirling spiral arms, the dust in its disk and its piercingly bright core like never before. The bright orange lines appearing to radiate out from the galaxy’s center are not actually a feature of the galaxy: they are a type of distortion that arises from the optical design of the telescope. Called diffraction spikes, they are created because the intense light from the unresolved AGN is bent (diffracted) very slightly at the edges of Webb’s hexagonal mirror panels and around one of the struts that hold up its secondary mirror. Image credit: NASA / ESA / CSA / Webb / A. Leroy.

New images from the NASA/ESA/CSA James Webb Space Telescope capture the barred spiral galaxy Messier 77 as a whirlpool of glowing dust, newborn stars and a brilliantly active core. This image of Messier 77 from Webb’s Mid-Infrared Instrument (MIRI) highlights its swirling spiral arms, the dust in its disk and its piercingly bright core like never before. The bright orange lines appearing to radiate...

Archaeology

780,000-Year-Old Charcoal Reveals How Early Humans Mastered Fire

Ancient inhabitants of the Gesher Benot Ya’aqov site in Israel likely used some kind of earth oven that maintained a temperature below 500 degrees Celsius to cook their fish. Image credit: Ella Maru / Tel Aviv University.

Hominins at the Acheulian site of Gesher Benot Ya’aqov in Israel relied on driftwood gathered along a lakeshore to fuel their hearths, according to new research led by archaeologists from the Institut Català de Paleoecologia Humana i Evolució Social and Bar-Ilan University; 780,000-year-old charcoal fragments from the site show that survival wasn’t about finding the perfect wood — it...

Paleontology

New Species of Giant Long-Necked Dinosaur Identified in Argentina

Reconstruction of Bicharracosaurus dionidei. Image credit: Felipe Cutro-Lev.

Fossils unearthed on a remote Argentine ranch belong to a new genus and species of macronarian sauropod dinosaur, according to an international team of paleontologists led by the Ludwig-Maximilians-Universität München. Reconstruction of Bicharracosaurus dionidei. Image credit: Felipe Cutro-Lev. The newly-described sauropod species lived on the southern supercontinent Gondwana about 157 million...

Biology

Gentoo Penguins Aren’t One Species After All

Geographic distribution of the four species of gentoo penguins around the Southern Ocean. Image credit: Noll et al., doi: 10.1038/s42003-026-10081-7.

Genetic evidence suggests the familiar seabird is actually four separate species — including one previously unknown to science — with three now facing growing climate threats. Geographic distribution of the four species of gentoo penguins around the Southern Ocean. Image credit: Noll et al., doi: 10.1038/s42003-026-10081-7. Among seabirds, the gentoo penguin complex (Pygoscelis papua)...

Physics

Dark Matter May Have Jump-Started Universe’s First Giant Black Holes

Aggarwal et al. show that the energy released from dark matter decay could alter the chemistry of early galaxies enough to cause some of them to directly collapse into black holes rather than forming stars. Image credit: Aggarwal et al., doi: 10.1088/1475-7516/2026/04/034.

New research by astronomers from the University of California, Riverside, Sam Houston State University and the University of Oklahoma suggests decaying dark matter could have triggered the rapid collapse of early gas clouds, helping supermassive black holes form far sooner than current theories allow. Aggarwal et al. show that the energy released from dark matter decay could alter the chemistry of...

Genetics

Giant Squid DNA Found in Deep Canyons off Australia

A giant squid, at least 10-12 feet in length, approaches the Medusa’s e-jelly lure before realizing the e-jelly is not food and retreating. Image credit: Edie Widder & Nathan Robinson.

Using environmental DNA (eDNA) collected from waters more than 4 km deep off Western Australia’s Nyinggulu (Ningaloo) coast, researchers identified a total of 226 species across 11 major animal groups, ranging from creatures previously undetected in the area, such as the giant squid, to others thought to be new to science. A giant squid, at least 10-12 feet in length, approaches the Medusa’s...

Geology

Why Geologists Love Pond Scum

Microbial mat chips scattered on a Cambrian tidal flat surface. Image credit: Nora Noffke.

If you’ve ever wondered how geologists know so much about ancient beaches and shallow oceans — from the paleoenvironment to the animals roaming around, the seasonality of the weather, and even the time of day when the ancient scene was preserved — they owe it all to the sand particles bound together by microbes, forming structures known as microbial mats. A planar microbial mat with...

Other Sciences

Scientists Build ‘Mind-Reading’ Hearing System for Noisy Environments

Participants with intracranial electrodes listened to two competing, spatially separated conversations. Their neural signals were recorded and fed into a real-time processing system. The system uses a linear regression model to reconstruct the temporal envelope of the attended speech from low-frequency (LF) and high-gamma (HF) neural features. The reconstructed envelope is then compared to the envelopes of the two conversations to determine the listener’s focus, which in turn drives the selective amplification of the attended speaker. Image credit: Choudhari et al., doi: 10.1038/s41593-026-02281-5.

A team of U.S. researchers has demonstrated, for the first time in human trials, a device that reads brain signals to automatically amplify the voice a listener wants to hear — a potential lifeline for the 430 million people worldwide with disabling hearing loss. Participants with intracranial electrodes listened to two competing, spatially separated conversations. Their neural signals were...