In the colossal Pinwheel galaxy, 25 million light-years away, a star has just exploded and is even visible through small telescopes. The supernova-hunting astronomer Koichi Itagaki discovered the ...

From the vantage point of almost four billion light years away, the brightest known supernova looks a lot like they all do. Last year, the automated telescopes in Ohio State’s ASASSN network saw the ...

Astronomers recalculated the Crab Nebula supernova explosion date using proper motion measurements of its debris over 17 years, employing images from the Subaru Telescope. The study focused on a faint ...

A white dwarf star around 160,000 light years away appears to have exploded twice – the first evidence astronomers have seen that such supernovae involve a double detonation. White dwarf stars are ...