Over tens of millions of years, the surface of Europa has been churned by impacts down to an average depth of 30 centimeters. This churning means that the search for chemical biosignatures must look below that zone. Plus, methane and icequakes at Enceladus, predicting underwater eruptions, Virgin Galactic’s flight, and a Chinese spacewalk.
In a new paper, a renowned physicist’s overview of recent observations shows that the gap in the universe expansion calculations is closing. The Standard Model may be fine after all. Plus, Mars’ methane mystery, an orphan cloud, galaxies moving to collide, and an interview with PSI’s Than Putzig about just what is under Mars’ south polar ice cap.
On this week’s Rocket Roundup, a sounding rocket launches with student payloads, the Russian Space Force launches a classified satellite, and finally, a routine ISS resupply mission. Plus, this week in rocket history, we look back at STS-71 and the first Shuttle-Mir docking.
About 900 million miles away in two different galaxies, a black hole and a neutron star merged, and their gravitational waves have been detected here on Earth. These detections add another type of merger to the collection so far discovered. Plus, new composition data on Mars’ south polar cap and a look back at the Tunguska Event. #AsteroidDay
The fossilized teeth and bones of baby dinosaurs found in northern Alaska may indicate that dinosaurs didn’t just summer in the Arctic but nested and raised their young there. Plus, the cosmic dawn, a cosmic hand, black holes, and preserving core samples for the future of science.
New high-resolution images captured by the SOFIA airborne telescope have given scientists the first clear view of a massive star-forming region here in the Milky Way, including an expanding bubble of gas. Plus, finding Earth-like exoplanets, detecting life on Earth, and this week’s What’s Up, featuring the Messier Catalogue.
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