The fossilized remains belong to Aratasaurus museunacionali, a species of coelurosaurian theropod dinosaur that lived in what is now northeastern Brazil during the Early Cretaceous epoch, some 115 ...

Gas-rich dwarf galaxies appear to retain only about a tenth of the oxygen their stars have made, according to a census of 37 nearby systems using data from the NASA/ESA Hubble Space Telescope.

Scientists have identified a receptor on sensory nerves that appears to detect a fatty-acid byproduct found at high levels in psoriasis skin, and blocking it eased itch and skin thickening in mice.

Astronomers using the NSF-DOE Vera C. Rubin Observatory have found what may be a new dwarf planet in the outer Solar System.

A new species of extinct megapode bird -- a ground-dwelling relative of the chicken that was several times heavier than its living cousin -- has been identified from a single fragment of leg bone ...

Teghaza 001, a meteorite found in the Sahara Desert in Mali four years ago, is a fragment of Mars’ primordial crust, formed ...

Paleontologists have identified a new genus and species of megaraptorid dinosaur from an incomplete skeleton unearthed in ...

Some of the oldest drawings known to humanity, made roughly 37,000 years ago in France’s Chauvet Cave, are covered by a thin, ...

A new study led by the University of Cambridge challenges the long-standing idea that comets helped kick-start life on our ...

New radio observations with NSF’s Karl G. Jansky Very Large Array (VLA) and the Atacama Large Millimeter/submillimeter Array (ALMA) show the red supergiant star’s outer atmosphere has rebounded and ...

Humans and chimpanzees share more than 96% of their protein-coding DNA, yet human brains are roughly three times larger and ...