NASA's Hubble Spots Rare Gravitational Arc from Distant, Hefty Galaxy Cluster
Seeing is believing, except when you don't believe what you see.
Remote Siberian Lake Holds Clues to Arctic–and Antarctic–Climate Change
Intense warm climate intervals–warmer than scientists thought possible–have occurred in the Arctic over the past 2.8 million years.
Ancient Global Warming Allowed Greening of Antarctica
New research shows that substantial vegetation – including stunted trees – sprouted on the frozen continent 15 million years ago
Uranium-Series Dating Reveals Iberian Paintings are Europe's Oldest Cave Art
The practice of cave art in Europe thus began up to 10,000 years earlier than previously thought, indicating the paintings were created either by the first anatomically modern humans in Europe or, perhaps, by Neanderthals.