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
16
46
1
49
10
1
118
1
3
29
17
1
108
1
1
2
11
2
1
111
14
1
1
32
1
1
41
2
13
117
4
21
2
1
94
2
1
46
14
18
215
2
6
3
5
308
200
1
2
5
6
1
14
8
1
2
3
96
58
3
3
5
401
20
11
71
1
1
1
3
153
18
107
53
1
7
1
60
4
10
25
66
10
3
14
17
2
1
11
141
3
29
6
35
240
7
35
4
3
1
1
6
1
1
1
1
2
16
1
1
21
3
19
5
1
1
416
11
285
3
136
1
1
10
14
2
30
10
47
38
173
1
114
26
6
1
1
396
1
30
15
3
67
40
48
371
12
12
1
19
7
2
17
1
2
17
1
6
5
4
41
9
4
11
11
26
1
1
1
19
223
1
207
3
165
382
3
137
11
13
7
2
2
12
64
14
1
3
33
3
6
679
42
17
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