That’s not even close to the size of the “planet-killer” asteroid that slammed into Earth 66 million years ago and led to the extinction of dinosaurs. That one was estimated to be about 6.2 ...

Narrator: 4 and a half billion years ago, clouds of cosmic dust and gas which were orbiting the Sun collided into one another, creating the Earth, our planet, the home of mankind. It spins at 1000 ...

Feb. 19, 2025 — Arctic glaciers are leaking significant amounts of methane, a potent greenhouse gas. Glacial melt rivers and groundwater springs are transporting large volumes of methane from ...