How do giant black holes shut off star formation? How do they turn it back on? Which came first, the black hole or the galaxy? I discuss these questions and more in today’s Ask a Spaceman!
Just as sound can echo off distant objects, light can echo too. And the echoes of light bouncing off stellar remnants, black hole accretion disks, and clouds of gas and dust provide astronomers with another method of probing the distant cosmos.
Time for your June sky guide and news round up with @AwesomeAstroPod. This month we have A companion star that survived a supernova, dark matter stripped away in galaxies, and of course the image of Sagittarius A*.
Hello Sagittarius A*, we finally see you. This week @WSHCrew dicuss about the new image with Dr. Lia Madeiros. Also the news round-up. We have Tau Hercules meteor storm, planets, conjunction, summer solstice and more.
All the waiting is over, we’ve finally seen the image of the event horizon from the supermassive black hole at the heart of the Milky Way. Different shaped blobs! And a black circle in the middle. What are we looking at?
: George’s Random Astronomical Object presents Messier 61. The center of this barred spiral galaxy contains multiple regions where stars are forming as well as an inactive supermassive black home that needs some caffeine.
The closest black hole is in fact a vampire star system. Listen to @WSHCrew discussion with Dr. Abigail Fros. Also earth-like planet in dead star’s habitable zone, the impact of the war, and aurora in Mars
Time for news roundup. @WSHCrew talk about neutrinos, dead planet crashing into dead stars, galaxies loses their dark matter, auroras in Jupiter, black hole, and new type of neutron stars.
This week, @wSHCrew discuss with Dr. Ralph McNutt about Interstellar Probe Mission. Also news round-up about JWST, stellar mass black hole, new image of the heart of Milky Way, and how is it like to apply to be astronaut.
Using the ESO’s VLTI, scientists have obtained the deepest and sharpest images of Sagittarius A*. They tracked the orbits of stars and were able to more precisely measure the mass of the black hole.