Known as flow formations, these channels could be etched on bodies that would seem inhospitable to liquid because they are exposed to the extreme vacuum conditions of space. Pocked with craters, the surfaces of many celestial bodies in our solar system provide clear evidence of a 4.6-billion-year battering by meteoroids and other space debris. But […]
Posted on
December 20, 2024
Sign up for our newsletter:
Categories
14
1
6
299
208
3
46
1
30
54
46
1
2
1
3
2
1
1
10
17
2
11
1
30
45
14
5
3
95
4
13
113
2
141
48
1
2
1
2
4
14
2
45
3
1
19
3
186
136
1
100
14
6
3
1
1
7
3
2
10
1
1
16
7
10
18
386
10
34
361
1
21
69
6
1
403
11
1
3
1
1
58
1
2
34
3
3
2
29
4
1
1
1
21
38
2
6
1
7
1
278
232
5
1
62
133
1
1
10
17
1
33
12
13
170
22
10
3
1
4
5
11
112
3
1
27
10
18
67
36
19
9
112
1
1
54
11
4
14
41
26
2
15
385
657
48
13
221
4
19
35
6
1
8
7
18
1
6
17
2
6
1
6
1
1
370
3
40
17
13
1
1
3
46
10
1
202
3
107
1
11
3
159
151
29
105
11
2
2
Blog Posts
APOD: 2026 September 21 – Cocoon Nebula Wide Field
September 21, 2026
APOD: 2026 September 20 – Analemma over the Callanish Stones
September 20, 2026
APOD: 2026 September 19 – A Zodiacal Night
September 19, 2026
