The Andromeda galaxy, also known as Messier 31 (M31), is the closest spiral galaxy to the Milky Way at a distance of about 2.5 million light-years. Astronomers use Andromeda to understand the structure and evolution of our own spiral, which is much harder to do since Earth is embedded inside the Milky Way. The galaxy […]
Category:
Andromeda Galaxy, Chandra X-Ray Observatory, Galaxies, Marshall Astrophysics, Marshall Space Flight Center, The Universe
Posted on
June 26, 2025
Sign up for our newsletter:
Categories
3
1
26
39
44
10
6
1
1
6
1
13
4
92
5
41
164
14
3
1
2
23
19
1
3
56
1
23
1
2
1
3
32
1
10
131
14
4
1
2
2
2
2
13
1
3
22
1
7
1
1
89
1
4
2
1
6
4
8
1
48
113
2
10
1
1
1
2
11
8
252
1
5
4
34
10
2
2
2
187
1
1
1
142
291
16
12
4
1
1
3
6
132
3
10
28
3
3
1
1
36
87
1
2
3
48
80
95
2
5
27
1
202
5
39
28
12
1
6
14
24
1
313
1
16
557
16
4
20
28
1
285
69
4
1
1
1
2
1
114
13
2
249
12
301
2
37
5
1
138
13
10
3
3
14
2
4
161
1
16
Blog Posts
NASA Armstrong to Host Partnership Day Oct. 21-22
September 12, 2025
NASA Ames Science Directorate: Stars of the Month – September 2025
September 11, 2025