Two Neutron Star – Black Hole Mergers Detected

Two Neutron Star – Black Hole Mergers Detected

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

Play
Black Holes Can Clear Way For Star Formation

Black Holes Can Clear Way For Star Formation

Contrary to the destructive role supermassive black holes are thought to play in the lives of stars, it turns out that certain types of galaxies benefit from black holes clearing the way and keeping star formation going. Plus, lightning at the edge of space, a landslide in the Himalayas, and an interview with Dr. Darby Dyar and Dr. David Grinspoon about the recent selection of three different Venus missions.

Play
Supernovae and Galaxies Being Used to Solve Astrophysics’ Biggest Questions

Supernovae and Galaxies Being Used to Solve Astrophysics’ Biggest Questions

Two new studies are attempting to solve a couple of big puzzles in astrophysics: Is the Hubble constant actually constant? And why do galaxies have flat rotation curves? Plus, a young star’s circumstellar disk, the search for stellar-mass black holes, magnesium in the deep waters of Neptune and Uranus, and an interview with PSI scientist David Horvath regarding possibly active volcanism on Mars.

Play
End-Permian Extinction Lasted Ten Times Longer on Land Than Water

End-Permian Extinction Lasted Ten Times Longer on Land Than Water

The biggest mass extinction event on Earth occurred at the end of the Permian period, resulting in the extinction of 95% of marine life and 80% of terrestrial life. Now, scientists have found that the terrestrial portion of the event lasted nearly ten times as long as the ocean version. Plus, a spaghettified star, the search for Moon Trees, all about Mars, and new works on dark matter and dark energy.

Play