Exiled supernovas burst in lonely cosmic explosion


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.
Subscribe to 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.
A free daily email with the biggest news stories of the day – and the best features from TheWeek.com
Stephanie is an editorial assistant at TheWeek.com. She has previously worked for USA Today and Modern Luxury Media.
-
A whole new world: redrawing the Mercator map
Under the Radar African Union joins calls to ditch 'colonial distortion' and portray countries at more accurate size
-
'Enforcement of rulings remains spotty at best'
Instant Opinion Opinion, comment and editorials of the day
-
Book reviews: 'King of Kings: The Iranian Revolution' and 'Gwyneth: The Biography'
Feature How the Iranian Revolution began and Gwyneth Paltrow's life in the spotlight
-
Rabbits with 'horns' sighted across Colorado
speed read These creatures are infected with the 'mostly harmless' Shope papilloma virus
-
Lithium shows promise in Alzheimer's study
Speed Read Potential new treatments could use small amounts of the common metal
-
Scientists discover cause of massive sea star die-off
Speed 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 undersea
Speed Read Researchers discovered communities of creatures living in frigid, pitch-black waters under high pressure
-
New York plans first nuclear plant in 36 years
Speed 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 finds
Speed Read The painless procedure may be an effective way to reduce the widespread poaching of rhinoceroses
-
Breakthrough gene-editing treatment saves baby
speed read KJ Muldoon was healed from a rare genetic condition
-
Sea lion proves animals can keep a beat
speed read A sea lion named Ronan beat a group of college students in a rhythmic dance-off, says new study