Howstuffworks: In science fiction, robots can be friendly, helpful machines -- C-3P0 from the "Star Wars" movie series or the watchful B-9 from the 1960s TV series "Lost in Space," who scurried about on his tank-track feet waving his arms and shouting, "Danger, Will Robinson! Danger!" immediately come to mind.
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.
