Terrifying

Message boards : Science (non-SETI) : Terrifying
Message board moderation

To post messages, you must log in.

AuthorMessage
Nick: ID 666
Volunteer tester

Send message
Joined: 18 May 99
Posts: 11213
Credit: 31,467,725
RAC: 1,599
United Kingdom
Message 1806291 - Posted: 1 Aug 2016, 6:32:18 UTC

The terrifying reason this star flickers every two minutes

About 380 light years away in the constellation Scorpius lies a star that has puzzled astronomers for more than 40 years. Called AR Scorpii, the star flashes brightly and fades again every couple of minutes, like a lightbulb on a dimmer switch. Now, astronomers have identified the cause of the flickering, and it's a reminder that the cosmos is still rife with terrifying secrets.

AR Scorpii, previously identified as a single, variable star, is actually two, a compact white dwarf the size of the Earth but 200,000 times more massive, and a cool red dwarf a third the size of the sun.
ID: 1806291 · Report as offensive

Message boards : Science (non-SETI) : Terrifying


 
©2017 University of California
 
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.