Sky and Telescope 8 Sep 2020, 15:18 UTC Jupiter could have some 600 moons measuring at least 800 meters (2,600 feet) in diameter, according to a team of Canadian astronomers. They will present their findings on September 25th at the virtual Europlanet Science Congress 2020. Most of the moons are in wide, irregular, and retrograde orbits.
Universe Today 8 Sep 2020, 00:51 UTC In 2015, Russian-American billionaire Yuri Milner established Breakthrough Initiatives, a non-profit organization dedicated to advancing space exploration. Central to this effort is Breakthrough Listen, a ten-year international research program dedicated to the Search for Extraterrestrial Intelligence (SETI) and the largest and most sophisticated effort to find intelligent life beyond Earth to date.
Universe Today 7 Sep 2020, 15:04 UTC It’s kind of hard to see inside a star as it’s blowing up, because of the whole “blowing up” part, but gravitational waves – tiny ripples in the fabric of spacetime itself – may help astronomers unlock how the biggest stars die.
SciTech Daily 7 Sep 2020, 08:09 UTC A new study, published on September 2, 2020, shows that the lopsided black hole merger detected on April 12, 2019 as a gravitational wave, may have originated through a very different process compared to how most mergers, or binaries, are thought to form.
EarthSky Blog 4 Sep 2020, 13:01 UTC Jupiter’s ocean moon Europa looks a bit like a round cracked egg, with its smooth outer ice crust covered in brownish-stained fissures. Those cracks in Europa’s ice shell record the history of its surface and past geological activity. Now, researchers have announced a new study that’s provided more clues as to how the moon’s surface has changed over the last several million years. Its major finding: Europa’s poles are no longer where they used to be. As a whole, the Jovian moon’s icy shell has shifted and reoriented itself by as much as 70 degrees, close to a quarter of the way around a complete circle.
Universe Today 2 Sep 2020, 08:00 UTC Along Earth’s epic 4.5 billion-year journey, it appears that we’ve had close encounters with supernova several times. In fact, we seem to be travelling through the fallout cloud of supernovae right now.
Air & Space Magazine 1 Sep 2020, 16:00 UTC Life detection on Mars and the icy moons of the outer Solar System looks more and more feasible.
SciTech Daily 1 Sep 2020, 09:31 UTC Radio astronomers have detected jets of hot gas blasted out by a black hole in the galaxy at the heart of the Phoenix Galaxy Cluster, located 5.9 billion light-years away in the constellation Phoenix. This is an important result for understanding the coevolution of galaxies, gas, and black holes in galaxy clusters. Galaxies are not distributed randomly in space. Through mutual gravitational attraction, galaxies gather together to form collections known as clusters. The space between galaxies is not entirely empty. There is very dilute gas throughout a cluster which can be detected by X-ray observations.