Mysterious drone swarms have been seen flying in Colorado, Nebraska and Wyoming at night since December, sometimes over locations believed to house nuclear missile silos. A federal task force has been formed to investigate the drones' origin and purpose. The Phillips County Sheriff's Office in Colorado reported the first drones on 20 December. There have been hundreds of sightings since, some of groups of drones flying in grid patterns. Some observers assumed the drones were part of a military exercise, but the US Air Force has denied involvement.
What little mystery surrounded DJI's upcoming Mavic 2 drone appears to have evaporated. Numerous UK residents have noticed that the latest Argos catalog includes a prominent ad for the Mavic 2 that reveals just about everything, including some clarifications on past leaks. It doesn't appear to have a removable gimbal, alas. Instead, there will be separate Mavic 2 Pro and Mavic 2 Zoom models tailored to specific needs. The'regular' Zoom model would include a 2X optical zoom lens for aerial close-ups, while the Pro would pack a Hasselblad camera with a 1-inch sensor and no zoom.
So your kid wants a drone. That's not surprising: They've been a hot holiday gift for a few years running, and more options than ever are explicitly marketed toward the younger set. Still, there are a lot of drones out there, and it can be hard to tell not only which are actually good, but also which are safe, sturdy, and beginner-friendly enough for children. Your young pilot will probably crash this thing a few times, after all -- in a lot of cases (though not all!), a low-cost toy drone is your best bet. When it comes right down to it, the best drones for kids are ones that will be relatively easy to fly and can take a beating.
In the 1980s, astronomers discovered that objects falling into black holes in our galaxy throw off flickering X-rays before they vanish. Why this happened was a mystery. A discovery by the European Space Agency's orbiting X-ray observatory, XMM-Newton (aided by NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) mission) has proved the existence of a "gravitational vortex" around a black hole, which solves the flickering mystery. The image above is an artist depiction of of the accretion disk around a black hole as the orbit of the material changes orientation around the central object.