APODScienceAPODAPOD: 2026 September 21 –…Today’s APODArchiveSubmissionsIndexSearchCalendarRSSEducationAboutDiscuss APOD Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. Cocoon Nebula Wide Field Explanation: When does a nebula look like a comet? In this crowded starfield […]
Category:
APOD
Posted on
September 21, 2026
Sign up for our newsletter:
Categories
1
12
21
19
416
11
3
19
12
1
14
2
1
1
1
9
11
396
173
26
30
10
47
38
19
6
1
48
1
223
114
3
1
7
30
15
17
67
40
7
371
6
17
1
679
41
1
17
2
2
46
1
29
1
207
108
5
4
4
11
3
1
1
111
12
3
1
6
3
165
1
2
2
64
49
382
3
137
11
13
42
14
1
33
3
215
118
2
11
1
2
16
1
2
10
1
1
1
32
5
17
1
1
96
58
13
117
94
41
14
1
3
14
1
2
1
20
2
4
21
18
3
2
200
1
107
46
14
6
2
3
4
3
6
1
3
8
5
17
308
1
2
6
1
401
141
1
7
35
4
71
1
3
3
5
1
11
60
18
53
1
153
11
10
1
7
1
5
2
1
25
66
285
10
240
14
1
10
1
3
29
136
35
1
26
1
1
6
3
1
1
2
16
1
Blog Posts
M30’s Sparkling Stars
November 6, 2026
Supercomputing Tech Demo Schedule
November 6, 2026
APOD: 2026 November 6 – A Farewell to Swift
November 6, 2026