World’s oldest crystals reveal that Earth had rain and oceans 4 billion years ago

The world’s oldest crystals show evidence of exposure to fresh and salt water during their formation, a new study reports. This shows that the very early Earth had both oceans and land on which rainwater could collect. Although diabolical in many ways, it suggests a planet far more similar to the one we know today … Read more

See the new image of Jupiter’s volcanic moon from Earth

The UArizona-managed Large Binocular Telescope on Mount Graham is the only one of its kind, with two … [+] 27 foot mirrors mounted side by side. A powerful adaptive optics system compensates for blur caused by atmospheric turbulence, making it one of the most powerful Earth-based observatories in the world. NASA The Large Binocular Telescope … Read more

Australia orders China-linked funds to sell rare earth stakes in ‘national interest’

Unlock Editor’s Roundup for free Roula Khalaf, editor of the FT, picks her favorite stories in this weekly newsletter. Australia’s government has ordered funds linked to a Chinese businessman to cut their stake in a rare earth miner, in a sign how control of critical minerals is becoming a political concern. Jim Chalmers, Australia’s treasurer, … Read more