NASA Hubble Helps Detect ‘Wake’ of Betelgeuse’s Elusive Companion Star

Using new observations from NASA’s Hubble Space Telescope and ground-based observatories, astronomers tracked the influence of a recently discovered companion star, Siwarha, on the gas around Betelgeuse. The research, from scientists at the Center for Astrophysics | Harvard & Smithsonian (CfA), reveals a trail of dense gas swirling through Betelgeuse’s vast, extended atmosphere, shedding light […]
Posted on January 5, 2026
Sign up for our newsletter:

Categories

2
2
3
2
3
10
1
11
2
6
50
1
1
4
7
14
361
20
3
1
1
14
3
1
3
1
16
1
21
6
1
3
1
62
13
38
1
7
279
233
5
4
27
1
10
1
113
67
17
4
10
14
Io
5
3
2
6
9
1
1
1
13
1
386
10
658
12
159
1
6
17
14
30
1
1
46
29
202
1
6
209
3
2
4

Blog Posts

Newsletter Archive