Astronomy

Galaxy Cluster Abell 2029 Had Violent Past, Chandra Reveals

This composite image combines both the original X-ray and the subtracted X-ray images of the deep Chandra observations of Abell 2029. Image credit: NASA / CXC / CfA / Watson et al. / PanSTARRS / SAO / N. Wolk / P. Edmonds.

Deep X-ray observations of Abell 2029 — sometimes described as the most relaxed galaxy cluster in the Universe — uncovered evidence of an ancient cosmic collision, including a gigantic spiral of superheated gas stretching 2 million light-years across. This composite image combines both the original X-ray and the subtracted X-ray images of the deep Chandra observations of Abell 2029. Image...

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

Giant New Dinosaur Species Discovered in Thailand Reveals Hidden Diversity of Asian Titans

Stylized life reconstruction of Nagatitan chaiyaphumensis within the arid floodplains of Late Early Cretaceous Aptian-Albian Thailand. Image credit: Patchanop Boonsai.

Paleontologists have identified a new genus and species of somphospondylan titanosauriform dinosaur — the largest ever found in Southeast Asia — from the fossilized bones found in Thailand, offering fresh evidence that the region was home to a surprisingly diverse group of enormous plant-eaters during the Early Cretaceous. Stylized life reconstruction of Nagatitan chaiyaphumensis within...

Biology

Most Australia’s ‘Wild Dogs’ Are Actually Dingoes, DNA Study Finds

Koungoulos et al. discovered for the first time clear links between fossils of the iconic Australian dingo and dogs from East Asia and New Guinea. Image credit: Sharkolot.

A large genetic survey reveals that the country’s so-called ‘wild dogs’ remain predominantly dingo, reshaping debates over conservation and wildlife management. Australian dingoes. Image credit: Sharkolot. “Dingoes fulfill a unique ecological role in Australian ecosystems, becoming the sole terrestrial apex predator on the mainland (and several offshore islands) shortly after their arrival...

Physics

Gravitational Waves Could Become New Tool in Hunt for Dark Matter

Gravitational waves observed by Laser Interferometer Gravitational-Wave Observatory (LIGO) twin detectors were produced during the final fraction of a second of the merger of two black holes to produce a single, more massive spinning black hole. Image credit: T. Pyle / LIGO.

Researchers have developed a new method to identify whether black hole mergers occurred inside dense clouds of dark matter, potentially opening a fresh avenue for studying one of astronomy’s biggest mysteries. Gravitational waves observed by Laser Interferometer Gravitational-Wave Observatory (LIGO) twin detectors were produced during the final fraction of a second of the merger of two black holes...

Genetics

Most Australia’s ‘Wild Dogs’ Are Actually Dingoes, DNA Study Finds

Koungoulos et al. discovered for the first time clear links between fossils of the iconic Australian dingo and dogs from East Asia and New Guinea. Image credit: Sharkolot.

A large genetic survey reveals that the country’s so-called ‘wild dogs’ remain predominantly dingo, reshaping debates over conservation and wildlife management. Australian dingoes. Image credit: Sharkolot. “Dingoes fulfill a unique ecological role in Australian ecosystems, becoming the sole terrestrial apex predator on the mainland (and several offshore islands) shortly after their arrival...

Geology

Hidden Rift beneath Zambia May Be Tearing Africa Apart

Location map of the extensional zone within the Central African Plateau of Zambia. The Kafue Rift is connected to the Luano and Luangwa rifts to the NE, and the Western branch of the EARS at the Rukwa rift (RRB) and Rungwe Volcanic Province (RVP). Image credit: Karolytė et al., doi: 10.3389/feart.2026.1799564.

Unusual gases rising from geothermal springs within the Kafue Rift of Zambia suggest a deep fracture in Earth’s crust could mark the early stages of a new tectonic boundary. Location map of the extensional zone within the Central African Plateau of Zambia. The Kafue Rift is connected to the Luano and Luangwa rifts to the NE, and the Western branch of the EARS at the Rukwa rift (RRB) and Rungwe...

Other Sciences

Ancient Earth Repeatedly Thawed during Catastrophic Ice Ages, New Research Suggests

An artist’s impression of the ‘Snowball Earth.’ Image credit: Oleg Kuznetsov, http://3depix.com / CC BY-SA 4.0.

Earth experienced extreme climate swings during the Neoproterozoic epoch (one billion to 538.8 million years ago), including the Sturtian glaciation, when ice likely covered the planet. Explaining aspects of the geologic record and the survival of life through this event has been a longstanding puzzle. Additionally, geochronology indicates that the Sturtian glaciation lasted for 56 million years...