NASA’s Fermi Mission Uncovers Possible Sibling Supernova Remnants

A new study of two supernova remnants, the debris left behind after stars explode, suggests the explosions came from stellar siblings that once orbited each other. The first star’s detonation sent its binary companion hurtling through space, and then, after traveling for thousands of years, the surviving star blew up too.
Posted on June 17, 2026
Sign up for our newsletter:

Categories

47
1
3
3
10
1
3
371
1
13
1
12
1
11
21
1
240
9
1
1
1
1
64
17
38
1
3
679
3
5
29
17
2
1
5
15
118
Io
5
1
396
4
2
14
2
29
6
6
215
1
7
1
165
3
207
11
3
20
14
1
1
17
1
1
6
6
4
1
3
1
11
30
2
4
14
2
93
2
284
14
5
10
6
1
14
67

Blog Posts

Newsletter Archive