High-energy photons produced deep in gamma-ray burst jets emerging from a collapsed star could dissolve the outer stellar layers into free neutrons, causing a series of physical processes that results ...

As part of Hubble’s 35th anniversary celebrations, astronomers have obtained a stunning new image of a rich collection of scattered stars called Messier 72. Globular clusters are systems of very ...

Electricity-conducting cable bacteria form a group of multicellular prokaryotes that enable electron transfer over centimeter-scale distances within marine and freshwater sediments. Biologists have ...

University of Portsmouth physicist Melvin Vopson proposes a new way to think about gravity — not just as a pull, but as something that happens when the Universe is trying to stay organized. The ...

Up until now, the accepted understanding about these egg-laying was that they were both descended from a land-bound ancestor. And while the platypus ancestors became semiaquatic, the echidnas stayed ...

Malus is a genus with over 35 species naturally distributed across the temperate northern hemisphere, from East Asia and Europe to North America. This genus includes the domesticated apple (Malus ...

This apex predator is a type of sebecid crocodyliform with South American origins, according to new research led by the Florida Museum of Natural History. Sebecids were the last surviving members of ...

Long invisible to astronomers, the newly-discovered molecular cloud is one of the largest single structures in the sky and among the closest to the Sun and Earth ever to be detected. Molecular clouds ...

Neotropical crocodiles inhabit a broad geographic range with populations spanning from coastal, inland, and insular locations. In new research, scientists discovered a remarkable genetic diversity for ...

Paleontologists have discovered 50- to 25-million-year-old fossilized footprints of invertebrates and vertebrates, including a false saber-toothed cat (nimravid), at John Day Fossil Beds National ...

Duonychus tsogtbaatari lived in what is now Mongolia during the Late Cretaceous epoch, between 95 and 90 million years ago. The new species belongs to Therizinosauria, a group of herbivorous or ...

Observations of large valley networks on today’s Mars suggest formation by flowing water. However, most climate models cannot sustain temperatures above freezing. To understand this contradiction, a ...