ExtremeTech - When dreamers looked at grainy, pre-Viking shots of the Martian surface, they interpreted the long, seemingly even furrows as farmland. They made up elaborate stories of doomed canal-builders working frantically to hold off the advance of the frozen tundra of Mars. They were dramatic stories that arrested people’s imaginations for decades, but despite evidence disproving the canal hypothesis we still struggle to fully explain the origins of many features of the Martian surface. Some, astronomers now believe, are ancient lake and river beds, valleys carved out by the flow of ancient liquid water.
The supermassive black hole is 40 million times as massive as the sun and powers a quasar that existed 700 million years after the Big Bang.
Vision Pro is here and it’s a surprisingly capable device. Apple has also loaded the headset with a ton of options and features that aren’t obvious at first glance.
Engineers expect to lose contact with the private US moon lander Odysseus on Tuesday, cutting short the mission after its sideways touchdown last week.
