They’re known as “living fossils”. For over 450 million years, horseshoe crabs have been an ecologically vital part of our planet. They’re one of the few surviving species on Earth dating back to the dinosaurs. At NASA’s Kennedy Space Center in Florida, the American horseshoe crab (Limulus polyphemus) is one of more than 1,500 types […]
Posted on
April 22, 2025
Sign up for our newsletter:
Categories
6
1
3
287
2
1
3
6
39
42
1
1
4
30
23
14
25
5
222
28
125
183
1
4
3
32
99
10
2
10
2
1
6
29
49
129
8
1
4
2
131
3
1
2
4
2
1
34
4
1
1
2
4
1
132
8
2
27
2
1
1
5
14
1
2
15
22
193
1
10
1
1
79
40
97
1
87
2
1
1
24
10
22
3
51
1
17
17
28
10
143
1
40
19
12
1
1
6
28
15
7
2
10
2
15
203
1
145
2
1
1
2
5
15
10
324
94
1
3
1
6
1
52
3
14
274
3
1
41
3
1
10
6
1
1
1
11
11
6
1
13
18
5
5
1
2
10
316
17
6
61
1
1
150
4
36
2
586
1
4
9
1
3
1
1
349
1
320
2
Blog Posts
A Grand, Snow-Rimmed Canyon
February 7, 2026
NASA Sets Coverage for Agency’s SpaceX Crew-12 Launch, Docking
February 6, 2026
Strong Solar Flare
February 6, 2026
