Anyone relying entirely on solar power or wind for electricity--say, in a remote location cut off from the grid--could use a cheap way to store power for use at night or when the wind isn't blowing. Today at the American Chemical Society meeting in Boston, researchers announced progress on one option: using electricity from solar panels or other sources to split water, producing hydrogen fuel that can be used to produce electricity anytime by means of a fuel cell or generator.
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.
