Scientists examined rock cores taken from the Chicxulub crater in Mexico, site of the asteroid impact that triggered dinosaur extinction, and found iridium, a telltale sign of asteroids.
One of the most famous and committed protectors of the natural world and defender of the planet is David Attenborough. He gave a speech online to the members of the UN Security Council on climate change and security in the…
NASA has selected 16 cool new futuristic space technology concepts for further study. Four of them are from NASA’s own Jet Propulsion Laboratory (JPL), including a railway system on the moon to move cargo.
(Toho University ) Earth’s modern atmosphere contains copious amounts of molecular oxygen (O2), representing an important remotely detectable sign of life. However, a fundamental question of how much longer the Earth’s oxygen-rich atmosphere will persist into the far future remains uncertain. A new study finds that a highly-oxygenated atmosphere is not a permanent feature even for Earth, which has implications for the search for life beyond the solar system.