As of right now, almost no legislation exists to regulate what private companies send to orbit. Without protective legislation in place, the preservation of our dark skies depends on the generosity of corporations. The sky belongs to all of us, it always has, but the rich and powerful are polluting it before the vast majority of us have a chance to look up.
The authors of today’s paper seek to uncover what is occulted in the final moments of a massive star’s death. To this end, they outline the feasibility of measuring the background flux of “relic neutrinos” and connect them to their origins.
Black holes colliding and neutron stars merging are not the only ways to create GWs! Dergachev and Papa, the authors of today’s paper, searched through the first half of the third LIGO observing run (called “O3a”) for continuous wave signals. They searched every point on the sky and recorded the deepest SNR they were able to search for a CW signal, leaving behind a treasure map (or atlas) for future studies
More radiant than typical supernovae- superluminous supernovae- have a mysterious source of power. Some show odd bumps and wiggles late in their evolution.