America Is Reopening. Coronavirus Tracing Apps Aren’t Ready.

Smartphone apps meant to track where people have traveled or whom they have been near are mostly buggy, little-used or not ready for major rollouts, raising concerns as restrictions lift and infections rise. From a report: Local officials in Teton County, Wyo., home to Yellowstone National Park and resort town Jackson Hole, want to prevent a new wave of coronavirus cases…

Risk of Yellowstone eruption may be decreasing

It turns out that a supervolcanic eruption at Yellowstone National Park may not happen for a very long time. The natural beauty of Yellowstone Nationa… Source: https://www.unexplained-mysteries.com/news/337438/risk-of-yellowstone-eruption-may-be-decreasing…

Watch for Lyrid meteors this week

Assuming ideal conditions, you might catch 10 to 15 meteors per hour in 2020’s Lyrid meteor shower. The peak is probably Wednesday morning – April 22 – but watch the mornings before and after, too. Source: https://earthsky.org/tonight/lyrid-meteors-best-before-dawn…

Spica is your guide star to Omega Centauri

Omega Centauri is the largest and finest star cluster visible to the eye alone from the Northern Hemisphere. Binoculars or a telescope show even more. A dark sky is best! Source: https://earthsky.org/tonight/spica-guide-to-omega-centauri…

Powerful X-ray imaging reveals new details of dinosaur embryos in eggs

To look at dinosaur embryos entombed inside 200 million year old fossil eggs, scientists used powerful X-rays to create detailed images. They wanted to see how these embryos compared to those of modern-day dinosaur relatives. Source: https://earthsky.org/earth/dinosaur-fossil-embryo-synchrotron-x-rays…

Ancient 4-limbed fish reveals origin of human hand

The origin of digits in land vertebrates is hotly debated, but a new study suggests that human hands likely evolved from the fins of the Elpistostege, a fish that lived more than 380-million-years ago. Source: https://earthsky.org/earth/elpistostege-ancient-4limbed-fish-fin-origin-human-hand…

Check out these mammatus clouds

Mammatus clouds can appear ominous. But, in a way that’s so common in nature, their dangerous aspect goes hand in hand with a magnificent beauty. Source: https://earthsky.org/earth/amazing-photos-of-mammatus-clouds…