Could an airliner that flies anywhere in under three hours be in service by 2030?
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.
Okay... so I guess supersonic is Mach 1 - 4 and hypersonic is anything above Mach 5.
The more you know... STAR!!!