| Supermassive black holes help with star birth | | | Supermassive black holes are often described as devouring, monster, behemoth, lurking and so on. These words make it sound as if black holes are a harbinger of destruction. It's true a star that ventures too close might become spaghettified, utterly destroyed, by a black hole's strong gravity. Plus, a supermassive black hole often sends out massive beams of destruction (better known as jets). But maybe black holes can do more than lurk and destroy? Last month, astronomers said that supermassive black holes might also bring about new star birth! Do they? Wow. Read more. | | |
An Antarctic lake suddenly disappears | | | Scientists saw an ice-covered lake atop the Amery Ice Shelf in Antarctica in April 2019. But by June of that year it had drained away, leaving behind a doline - a crater-like sinkhole with the fractured remains of the ice cover - where the lake had once been. The scientists believe the weight of accumulated meltwater created a large fissure beneath the lake, which drained in what they called a rare event. Read more. | | |
| US intelligence report: 140 unexplained UFOs, no aliens | | | The U.S. intelligence community released a much-awaited report on June 25 on what the military calls unidentified aerial phenomena, or UAPs. That's military jargon for what most of us call UFOs. The report listed 144 such objects between 2004 and this year. Navy aviators sighted many of them. But the report presented no clear evidence for visitors from another planet (or any other sort of otherworldly cause). And it didn't rule out the possibility of alien visitors, either. Read more. | | |
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