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2 days ago · Rajgad Fort 's Citadel, an eroded hill from the Deccan Traps, which are another hypothesized cause of the K–Pg extinction event. The Cretaceous–Paleogene ( K–Pg) extinction event, [ a] also known as the Cretaceous–Tertiary (K–T) extinction, [ b] was the mass extinction of three-quarters of the plant and animal species on Earth [ 2][ 3 ...
1 day ago · In the absence of a magnetic field, charged particles from the Sun will deplete the atmosphere and further increase the Earth's temperature to an average of around 420 K (147 °C, 296 °F) in 2.8 billion years, causing the last remaining life on Earth to die out. This is the most extreme instance of a climate-caused extinction event.
Jul 22, 2024 · Pangea, in early geologic time, a supercontinent that incorporated almost all the landmasses on Earth. Pangea was surrounded by a global ocean called Panthalassa, and it was fully assembled by the Early Permian Epoch (some 299 million to about 273 million years ago). The supercontinent began to break apart about 200 million years ago, during ...
- The Editors of Encyclopaedia Britannica
Jul 15, 2024 · All life on Earth can be traced back to a Last Universal Common Ancestor, or LUCA. A new study suggests that this organism likely lived on Earth only 400 million years after its formation.
- Darren Orf
- Contributing Editor
1 day ago · Impact event. Damage to trees caused by the Tunguska event. The object, just 50–80 metres (150–240 feet) across, exploded 6–10 km (4–6 miles) above the surface, shattering windows hundreds of km away. An impact event is a collision between astronomical objects causing measurable effects. [1]
Jul 28, 2024 · A group of scientists say they have found new evidence to back up their theory that complex life on Earth may have begun 1.5 billion years earlier than thought. The team, working in Gabon, say ...
Jul 29, 2024 · The groundbreaking discovery of a temperate Earth-size planet just 40 light-years away may hold the key to understanding ... finding a planet around this zone is a big step in the search for life. ...
