The new rifts appeared soon after last year’s major calving of iceberg B46, which is about 3 times the size of New York’s Manhattan island. Satellite monitoring suggests a new iceberg of similar proportions will soon be calved.
Exoplanets – worlds orbiting distant suns – are very, very far away. Astronomers are learning what some might look like, and what’s in their atmospheres. Soon – for the first time – a new telescope will be able to “see inside” some exoplanets.
Astronomers probed the cosmic web, a large-scale structure composed of massive filaments of galaxies separated by giant voids. They found the filaments also contained significant amounts of gas, believed to help fuel the galaxies’ growth.
NASA is testing a 3D-printed prototype of unusual mini robots that can roll, fly, float and swim, then morph into a single machine. They’re called Shapeshifters. The team envisions them as a way to explore Saturn’s moons.
Arctic sea ice likely reached its smallest extent for 2019 on September 18. At 1.6 million square miles (4.15 million square km), that minimum is now in a 3-way tie for 2nd-smallest in the satellite record.
For decades, astronomical theorists have told us that a black hole’s powerful gravity would warp the space around it. This new visualization from NASA’s Goddard Space Flight Center is the best yet at showing exactly how.
Take one minute to watch a video of a system of 3 galaxies – called SDSS J0849+1114 – all orbiting each other a billion light years from Earth. Each galaxy contains a supermassive black hole, which are circling each other, about to collide.