Geological observations of Mars indicate a dense early atmosphere ranging from 0.25 to 4 bar of carbon dioxide. But 3.5 billion years ago, the Martian atmosphere thinned rapidly to approximately 0.054 ...

Paleontologists have announced the discovery of a new species in the tyrannosaurid dinosaur genus Labocania, based on a partial skeleton found in Coahuila, Mexico. The newly-discovered dinosaur ...

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have spotted a galaxy with a never-before-seen light signature — indicating that its gas is outshining its stars. Found approximately one ...

Until now, the fungus gnat genus Robsonomyia was represented by two living species: Robsonomyia reducta from North America and Robsonomyia sciaraeformis from Asia. Paleontologists have now found two ...

The dingo is a wild dog endemic to Australia with enigmatic origins. Dingoes are one of two remaining unadmixed populations of an early East Asian dog lineage, the other being wild dogs from the New ...

The Horned Serpent panel at La Belle France in the Free State province of South Africa was painted by the San people at least two hundred years ago. It pictures, among many other elements, a tusked ...

Primordial black holes are one of the strongest candidates for the Universe’s dark matter. In this scenario, their abundance would be large enough for at least one object to cross through the inner ...

Breakup of an asteroid passing within Earth’s Roche limit likely formed the debris ring during the middle Ordovician period, according to new research from Monash University. All large planets in our ...

In the Standard Model of particle physics, the masses of the carriers of the weak interaction, the W and Z bosons, are uniquely related. Physics beyond the Standard Model can change this relationship ...

Syntretus perlmani infects the adult stage of fruit flies in the genus Drosophila, including one of the most deeply studied model organisms in biology, Drosophila melanogaster. Evolutionary conflict ...

Bubble use evolved in many small invertebrates to enable underwater breathing, but, until recently, there has been no evidence that vertebrate animals use bubbles in a similar manner. Only one group ...

The end-Permian mass extinction, which occurred about 252 million years ago, was the most severe extinction event in the past 540 million years, eliminating more than 90% of marine and 75% of ...