The well-studied V404 Cygni, an X-ray binary hosting a low-mass black hole, is part of a wide hierarchical triple with a tertiary companion at least 3,500 astronomical units (AU) away from the inner ...

In the study, University of Maryland paleontologist Thomas Holtz Jr. and his colleagues examined two-toed footprints produced by a small, bird-like microraptorine dinosaur moving at high speed.

Dedicated to the Egyptian deity Khnum, the temple of Esna is one of the last examples of ancient Egyptian temple architecture. Only the vestibule, called the pronaos, of the original temple complex ...

Paleontologists have found a fossilized jaw fragment and three isolated teeth from a new, relatively large (by Late Cretaceous standards) metatherian species in the layers of the Williams Fork ...

Paleontologists have described a new genus and species of Jurassic cockroach, Alderblattina simmsi, based on an isolated wing found in Gloucestershire, the United Kingdom. “Insects are the most ...

Paleontologists say they have discovered the first fossil of an Australian sawfly species, Baladi warru, found at McGraths Flat in central New South Wales. Baladi warru lived in Australia during the ...

Archaeologists in Armenia have discovered the remains of an early Christian church at the site of the ancient city of Artaxata. Artaxata, also known as Artashat, was a major city of ancient Armenia ...

The newly-discovered species belongs to Trichothraupis, a genus that was established in 1851 and, until now, included only one species: the black-goggled tanager (Trichothraupis melanops). These ...

The end-Triassic extinction along with the end-Permian and end-Cretaceous events are the most severe mass extinctions in the past 270 million years. The exact mechanisms of the end-Triassic extinction ...

Paleontologists have discovered the well-preserved fossilized remains of a tadpole of the early anuran species Notobatrachus degiustoi at the locality of Estancia La Matilde in Patagonia, Argentina.

The El Niño-Southern Oscillation, which is characterized by irregular alternations between anomalously warm (El Niño) and cold (La Niña) conditions, was present at least 250 million years in the past, ...

“In recent years, a series of new discoveries have enriched our knowledge of their diversity, behaviors, ontogeny and reproductive biology.” “With over 40 genera named, unquestionable oviraptorosaurs ...