Lake Unter-See in Antarctica, sealed beneath thick ice, contains unusually high levels of dissolved oxygen and cone-shaped microbial reefs resembling some of Earth’s oldest fossils.
Category:
Astrobiology, Earth Observatory, Ice & Glaciers, Landsat 9, Planetary Analogs, Surface Water, Water on Earth
Posted on
March 11, 2026
Sign up for our newsletter:
Categories
1
2
17
1
103
101
4
14
134
10
12
18
1
87
39
36
16
1
1
382
5
1
4
5
2
9
1
4
18
2
196
1
6
37
12
1
8
25
6
3
11
2
17
2
6
2
1
103
4
43
5
10
2
2
2
149
10
2
3
14
6
1
3
32
3
28
11
42
1
3
1
3
107
1
4
14
29
43
1
1
6
1
5
1
10
1
12
33
10
1
13
6
1
13
1
2
3
2
39
11
10
1
53
65
31
2
1
260
119
1
1
170
350
2
10
220
1
7
1
134
10
106
10
1
10
1
1
10
156
25
4
1
30
344
3
624
20
291
3
1
1
58
1
211
4
20
17
1
29
1
1
1
1
2
10
1
25
4
1
18
1
52
10
24
41
193
1
23
6
2
1
340
365
5
14
1
51
44
3
15
147
18
1
3
Blog Posts
Tropical Storm Arthur
June 19, 2026
Curiosity Blog, Sols 4920-4926: Surveying the Bands
June 19, 2026