A superkilonova candidate event, named AT2025ulz, was observed in 2025; LIGO and Virgo first spotted gravitational waves, ...
A massive star may have burst, leaving behind two dense, dead cores, which then collided and caused another explosion ...
Morning Overview on MSN
First “superkilonova” double-star blast leaves astronomers stumped
A strange cosmic blast that lit up the sky in two distinct acts is forcing astronomers to rethink how stars live and die. The event, tagged AT2025ulz, appears to be the first known case where a ...
Talk about a heavy snack. For the first time, astronomers have witnessed a black hole swallowing a neutron star, the most dense object in the universe — all in a split-second gulp. Ten days later they ...
Morning Overview on MSN
What dying stars reveal about axions as dark matter contenders
Astrophysicists are turning the universe’s dying stars into laboratories for one of physics’ most elusive ideas, the axion. By tracking how stellar corpses cool, flare and radiate, they are testing ...
Neutron stars are ultra-dense star remnants made up primarily of nucleons (i.e., protons and neutrons). Over the course of millions of years, these stars progressively cool down, radiating heat into ...
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