Polaris is the North Star

Many people think Polaris is the sky’s brightest star. In fact, Polaris ranks only 50th in brightness. Still, Polaris is famous because the entire northern sky wheels around it. Source: https://earthsky.org/brightest-stars/polaris-the-present-day-north-star…

Arcturus cuts through the galaxy’s disk

Arcturus isn’t moving solely within the flat disk of our Milky Way galaxy. It’s cutting perpendicularly through the disk. Millions of years from now, it’ll be lost from view, at least for those who are earthbound and looking with the eye alone. Source: https://earthsky.org/brightest-stars/bright-orange-arcturus-use-the-big-dipper-to-find-it…

What caused the Great Dying?

New evidence that volcanic eruptions caused the Great Dying, a mass extinction 252 million years ago that killed off 95% of life on Earth. Source: https://earthsky.org/earth/study-volcanoes-caused-mass-extinction-great-dying…

SpaceX, NASA tight-lipped on cause of crew capsule incident

NASA and SpaceX remained tight-lipped Thursday about what caused a mysterious but apparently serious incident last weekend during engine tests on the Crew Dragon capsule designed to carry US astronauts to the International Space Station (ISS) later this year. Source: https://phys.org/news/2019-04-spacex-nasa-tight-lipped-crew-capsule.html…

SpaceX Crew Dragon capsule lost after ‘anomaly’ during ground test

The Crew Dragon capsule is intended to ferry astronauts to the International Space Station, but a possible explosion during a ground test may set launches back Source: https://www.newscientist.com/article/2200406-spacex-crew-dragon-capsule-lost-after-anomaly-during-ground-test/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…