A long-standing mystery in vertebrate evolution -- why most major fish lineages appear suddenly in the fossil record tens of millions of years after their presumed origins -- is tied to the Late Ordovician mass extinction.

The post Study: Late O

New multi-year observations from the NASA/ESA Hubble Space Telescope and ground-based telescopes reveal how a faint companion star, dubbed Siwarha, carves a trail through Betelgeuse’s extended atmosphere.

The post Astronomers Detect Celestial ‘W

Astronomers have detected an extraordinary asteroid, named 2025 MN45, in early data from the Legacy Survey of Space and Time (LSST) Camera -- the largest digital camera in the world -- at the NSF-DOE Vera C. Rubin Observatory.

The post Record-Se

New observations of the young cluster SPT2349-56 with the Atacama Large Millimeter/submillimeter Array (ALMA) have revealed unexpectedly scorching intracluster gas just 1.4 billion years after the Big Bang, challenging current models of galaxy cluster

Archaeologists have identified traces of two toxic plant alkaloids -- buphandrine and epibuphanisine -- on artifacts from Umhlatuzana Rock Shelter in KwaZulu-Natal, South Africa.

The post 60,000-Year-Old Poisoned Arrowheads Found in South Africa

A new analysis of stress, tides and interior forces suggests Jupiter’s icy moon Europa lacks the active seafloor faulting needed for robust hydrothermal circulation -- with implications for chemical energy and habitability.

The post Europa’s Oce

This new image from the NASA/ESA Hubble Space Telescope is one of the best ever views of Arp 4, a visual pair of galaxies in the constellation of Cetus.

The post Hubble Space Telescope Snaps Close-Up of Arp 4 appeared first on Sci.News: Breaking Science News.

In the 4th century BCE, at least four wooden plank boats the island of Als off the coast of Denmark.

The post Archaeologists Find Fingerprint of Ancient Seafarer on 2,400-Year-Old Boat appeared first on Sci.News: Breaking Science News.

Fomalhaut -- the 18th brightest star visible in night sky -- is orbited by a compact source, Fomalhaut b, which has previously been interpreted as either a dust-enshrouded exoplanet or a dust cloud generated by the collision of two planetesimals.

The post Hubble Captures Collision of Two Planetesimals around Fomalhaut appeared first on Sci.News: Breaking Science News.

Anchiornis huxleyi is a species of non-avian theropod dinosaur from the Late Jurassic Tiaojishan Formation in northeastern China

The post Jurassic Dinosaur Fossils Shed Light on Evolution of Flight appeared first on Sci.News: Breaking Science News.

Scientists using the Ultraviolet Spectrograph (UVS) instrument aboard NASA’s Europa Clipper spacecraft have observed 3I/ATLAS, only the third confirmed interstellar object ever detected entering the Solar System from beyond.

The post Europa Clipper Captures Unique View of 3I/ATLAS appeared first on Sci.News: Breaking Science News.

The data from NASA’s Cassini mission to Saturn initially led researchers to suspect a large underground ocean composed of liquid water on Titan.

The post Titan Does Not Have Subsurface Ocean, New Study Indicates appeared first on Sci.News: Breaking Science News.

Bees are well known for their species and remarkable behavioral diversity, ranging from solitary species that nest in burrows to social species that construct highly compartmentalized nests.

The post Paleontologists Discover First-Known Instance of Ancient Bees Nesting inside Vertebrate Fossils appeared first on Sci.News: Breaking Science News.

Using data gathered by a suite of space- and ground-based telescopes, astronomers have discovered AT 2024wpp, the most luminous fast blue optical transient (LFBOT) ever observed.

The post Record-Breaking Cosmic Burst Caused by Stellar-Mass Black Hole Shredding Its Companion appeared first on Sci.News: Breaking Science News.

PSR J2322-2650b, an enigmatic Jupiter-mass exoplanet orbiting the millisecond pulsar PSR J2322-2650, appears to have an exotic helium-and-carbon-dominated atmosphere unlike any ever seen before.

The post Webb Detects Exotic Helium-and-Carbon-Rich Atmosphere around Pulsar-Orbiting Exoplanet appeared first on Sci.News: Breaking Science News.

Paleoanthropologists have examined and reconstructed DAN5, a 1.5-million-year-old fossilized skull of early Homo erectus found in Gona in the Afar region of Ethiopia.

The post 1.5-Million-Year-Old Fossil Reveals New Details about Homo erectus appeared first on Sci.News: Breaking Science News.

Paleontologists have unearthed a dense assemblage of dugong remains at the site of Al Maszhabiya in the Early Miocene Dam Formation of Qatar.

The post Sea Cow Communities Have Engineered Arabian Gulf’s Seagrass Ecosystems for Over 20 Million Years appeared first on Sci.News: Breaking Science News.