This image from NASA’s Hubble Space Telescope showcases Messier 3 (M3), one of the Milky Way galaxy’s most massive globular clusters, or spherical collections of gravitationally bound stars. Globular clusters are made up of ancient stars that formed at roughly the same time from the same cloud of gas, giving those stars similar ages. Around 150 known globular clusters are […]
Posted on
July 8, 2026
Sign up for our newsletter:
Categories
44
203
1
7
17
1
5
6
10
1
1
1
51
39
10
17
353
110
13
1
3
1
2
1
163
198
105
1
137
10
21
3
93
1
2
104
4
3
10
1
4
6
18
62
2
33
44
1
21
1
55
2
11
395
6
2
2
33
6
2
1
29
5
4
10
38
1
13
108
4
26
18
17
1
14
25
1
3
110
3
360
2
12
1
14
13
3
1
180
46
4
155
2
1
3
15
2
5
35
5
1
12
13
1
1
6
6
1
8
373
18
5
2
1
11
1
57
10
33
1
1
270
10
10
14
14
1
2
10
124
149
10
2
5
3
40
226
2
1
8
4
2
1
10
2
14
30
1
639
20
44
3
1
1
1
10
42
1
10
36
7
1
6
17
1
29
15
214
33
1
1
1
3
2
296
1
377
26
3
1
68
18
2
47
134
1
Blog Posts
NASA’s IXPE May Have Proven 90-Year-Old Theory
August 5, 2026
Artemis III Orion Crew and Service Models Joined
August 5, 2026