Enigmatic depressions on the surface have puzzled scientists since the 1970s NASA’s MESSENGER spacecraft discovered strange hollows on the surface of Mercury. Images taken from orbit revealed thousands of mysterious depressions, pitted and uneven, in areas all across the planet, up to a half-mile (800 meters) across and 120 feet (37 meters) deep. This mosaic […]
Category:
The Solar System
Posted on
October 17, 2023
Sign up for our newsletter:
Categories
19
1
1
4
2
27
8
15
6
1
6
15
193
1
145
1
150
15
4
1
79
94
40
2
2
2
1
1
24
10
87
14
17
17
6
10
1
52
143
41
287
40
1
1
2
28
39
1
5
10
11
14
6
1
1
3
1
32
6
3
274
1
10
2
316
1
6
129
61
1
4
6
2
3
2
1
3
11
1
1
2
15
34
1
5
18
3
5
10
5
14
2
3
17
22
1
5
586
1
9
28
36
97
3
3
1
4
349
1
51
320
2
10
1
1
12
6
6
2
10
1
1
42
1
203
4
1
2
23
25
2
1
1
222
1
125
324
30
3
99
1
183
10
2
132
1
29
49
10
3
8
2
1
1
4
2
1
1
131
22
4
1
2
28
4
1
1
1
13
Blog Posts
NASA Sets Coverage for Agency’s SpaceX Crew-12 Launch, Docking
February 6, 2026
Strong Solar Flare
February 6, 2026
Boreal Forests Are Shifting North
February 6, 2026