On Jan. 16, 2020, the Mars Reconnaissance Orbiter (MRO) captured this image of two types of sand dunes on Mars: barchan and linear dunes. The small dots are called barchan dunes, and from their shape we can tell that they are upwind. The downwind dunes are long and linear. These two types of dune each […]
Posted on
March 8, 2024
Sign up for our newsletter:
Categories
62
2
4
87
12
2
3
5
12
22
1
2
185
86
2
8
5
1
10
2
1
44
1
12
14
2
16
1
1
6
2
104
10
4
6
1
140
159
3
1
28
12
3
8
260
530
1
1
7
1
54
1
3
15
1
3
1
103
145
121
1
13
1
38
1
3
1
5
1
1
27
41
80
1
1
1
3
9
4
1
21
12
254
4
41
38
126
15
1
1
1
2
4
233
16
1
65
12
5
1
34
227
2
4
10
1
2
1
1
36
37
145
20
9
293
1
12
13
12
3
1
3
1
6
1
4
23
2
11
4
3
125
6
7
3
80
2
1
1
3
31
2
1
2
2
27
1
27
21
17
284