Iron-rich sediment colors the red-orange waters of the Betsiboka River Delta in Madagascar in this image taken by an astronaut on the International Space Station on Sept. 30, 2023. The sediment can clog waterways in the delta’s estuarial environment, but it can also form new islands that become colonized by mangroves. Despite its rusty color, […]
Posted on
October 30, 2023
Sign up for our newsletter:
Categories
21
1
93
2
4
1
137
13
2
11
10
2
1
4
2
110
18
163
2
1
29
1
5
21
3
55
1
13
108
12
395
6
1
33
6
14
62
33
14
38
3
1
180
4
26
2
18
17
2
3
25
3
110
3
13
4
1
13
6
1
373
48
4
1
1
15
34
1
5
35
5
1
360
2
12
1
271
12
57
6
1
8
18
5
124
1
5
2
1
11
1
155
2
10
226
10
1
10
1
2
10
10
149
10
3
41
1
2
1
8
20
3
14
1
14
2
30
17
1
4
640
214
45
2
1
2
1
1
10
1
377
37
14
26
2
18
1
47
1
1
7
2
296
42
44
29
10
17
5
7
6
3
1
6
1
16
39
134
1
17
33
203
1
3
1
1
198
1
105
10
1
68
2
51
10
104
353
1
10
3
1
3
6
1
44
1
2
Blog Posts
APOD: 2026 August 8 – A Messier Moment for Tempel 2
August 8, 2026
2026 IGARSS Hyperwall Schedule
August 7, 2026
NASA’s IXPE Studies Magnetar
August 7, 2026