“To paraphrase the Greek philosopher Heraclitus of Ephesus, who famously said Panta Rhei — everything moves, we thought that perhaps Panta Kykloutai — everything turns,” said Dr. István Szapudi, an ...

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 ...

Certain lichen species can withstand Mars-like conditions with an X-ray radiation dose of 50 Gy (Grays) that is expected on the Mars surface over one year of strong solar activity, according to new ...

In 1983, the theoretical physicist Brandon Carter concluded that the time it took for humans to evolve on Earth — relative to the total lifespan of the Sun — suggests that our evolutionary origin was ...

Written in Greek, this papyrus is a memorandum for a judicial hearing before a Roman official in the province of Judea or Arabia in the reign of the Roman emperor Hadrian, after his visit to the ...

Dark energy — an unknown energy source that is causing our Universe’s expansion to accelerate – doesn’t actually exist, according to new research. Dark energy is commonly thought to be a weak ...

A radiation-resistant bacterium called Deinococcus radiodurans can withstand radiation doses thousands of times higher than what would kill a human. The secret behind this resistance is the presence ...

The Atacama Trench stretches along the eastern South Pacific Ocean, plunging to depths exceeding 8,000 m off the coast of northern Chile. The hadal zone, or the deepest 45% of the ocean (6,000-11,000 ...