Both Aerospace Corporation and ESA have updated their predictions for the fall of Tiangong-1. View China’s 1st space station online, before it falls, March 28 starting at 12 UTC.
Tiangong-1 potential re-entry area. Map showing the area between 42.8 degrees North and 42.8 degrees South latitude (in green), over which Tiangong-1 could reenter. Image via ESA
CC BY-SA IGO 3.0.
The Magellanic Stream – 300,000 light-years long – arches around our Milky Way. It’s too faint and tenuous to study directly, so astronomers probed it by looking to distant quasars.
Decades of research have revealed a cloud of gas ripped from the Large and Small Magellanic Clouds, the dwarf galaxies orbiting our Milky Way. The gas cloud is called the Magellanic Stream. Astronomers also used distant quasars to analyze a piece of the cloud, called the Leading Arm, here labeled A-C. Image via Space Telescope Science Institute/ University of Wisconsin
Here’s an easy astronomy lesson, from a master in the art of loving nature.
Scholz´s star – named for its discoverer – is now 20 light-years away. But astronomers say they’ve verified a flyby of this star 70,000 years ago that disturbed comets in the Oort Cloud.
Artist's concept of a the red dwarf star known as Scholz's star. a binary system formed by a small red dwarf, with about 9% of the mass of the Sun, around which a much less bright and smaller brown dwarf orbits. It is likely that our ancestors saw its faint reddish light in the nights of prehistory.