A new study says 2.25 times the mass of the Sun, give or take. Any more, and you get a black hole.
30 May 2022 Issue #431
30 July 2020 Issue #240
10 May 2021 Issue #321
07 October 2021 Issue #364
A very cool video makes spectra a lot easier to understand
08 October 2020 Issue #260
13 January 2020 Issue #183
M82 is really just doing what galaxies do: making lots and lots of stars
21 March 2021 Issue #307
Plus: Are Fast Radio Bursts caused by asteroids slamming into neutron stars?
Also, tomorrow is the Supermoon which is not terribly meaningful but you should go look anyway
