In what may be the saddest space story ever, three giant stars at the end of their lives — called supernovas — exploded alone in the depths of the cosmos, it was revealed in a new study this week. While normally supernovas occur in galaxies that house billions of other stars, these cosmic disruptions were notable because the stars were, for some reason, banished from their own galaxies.
The errant stars, originally discovered between 2008 and 2010, existed about 300 light years from their closest galactic neighbors.
All three of the stars exploded as Type Ia supernova, which scientists think happens when a smaller star disintegrates as it orbits a larger star, with the larger star feeding off the lesser star's materials.
The Week
Escape your echo chamber. Get the facts behind the news, plus analysis from multiple perspectives.
Sign up for The Week's Free Newsletters
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
In other words, the supernovas cannibalized their only stellar companions in the void. Space is cruel.
-
How ‘The Summer I Turned Pretty’ has brought out the worst in its fansIn the Spotlight Amazon’s love-triangle hit ‘driving some of the most bonkers and unhinged online energy in the history of the internet’
-
Human evolution may be responsible for autism ratesUnder the radar Neurodiversity and a complex brain may go hand in hand
-
Crossword: September 17, 2025The Week's daily crossword
-
SpaceX breaks Starship losing streak in 10th testspeed read The Starship rocket's test flight was largely successful, deploying eight dummy satellites during its hour in space
-
Rabbits with 'horns' sighted across Coloradospeed read These creatures are infected with the 'mostly harmless' Shope papilloma virus
-
Lithium shows promise in Alzheimer's studySpeed Read Potential new treatments could use small amounts of the common metal
-
Scientists discover cause of massive sea star die-offSpeed Read A bacteria related to cholera has been found responsible for the deaths of more than 5 billion sea stars
-
'Thriving' ecosystem found 30,000 feet underseaSpeed Read Researchers discovered communities of creatures living in frigid, pitch-black waters under high pressure
-
New York plans first nuclear plant in 36 yearsSpeed Read The plant, to be constructed somewhere in upstate New York, will produce enough energy to power a million homes
-
Dehorning rhinos sharply cuts poaching, study findsSpeed Read The painless procedure may be an effective way to reduce the widespread poaching of rhinoceroses
-
Breakthrough gene-editing treatment saves babyspeed read KJ Muldoon was healed from a rare genetic condition
