Category: Cosmology

July 1, 2020 / Black Holes

Is it the tiniest black hole ever or the largest neutron star ever? We may never know, but one of them has been discovered thanks to gravitational wave observations. And an interesting black hole merger…

July 1, 2020 / Astrophysics

The 200th episode of Walkabout the Galaxy goes from odd Earthly atmospheric “elves” to mysterious new fundamental particles called axions, with a stop by Jupiter’s fuzzy core on the way. To capture the essential Astroquarkiness…

June 12, 2020 / Astrophysics

Astronomers may have found the smoking gun for fast radio bursts in the form of a magnetar in our own galaxy. These highly magnetic neutron stars now look like the best bet as the sources…

May 26, 2020 / Astrophysics

Everyone’s favorite scary astronomical object, the black hole, just got a bit closer to home with the discovery of a modest, stellar-sized black hole a mere 1000 light years from the solar system. Top quark…

May 6, 2020 / Cosmology

As the Sun starts getting more active at the beginning of a new solar cycle, new observations of sunlike stars show that the Sun itself may be unusually calm. Good news for life on Earth,…

April 29, 2020 / Astrophysics

We love antimatter, and we love the matter-antimatter paradox. How come there was just a smidge more matter in the universe than antimatter? Neutrinos, the wispiest of particles, may provide a clue. We also check…