Near-Earth objects (NEOs) are asteroids and comets that orbit the Sun like the planets with orbits that come within 30 million miles of Earth’s orbit. NASA established the Planetary Defense Coordination Office (PDCO) to manage the agency’s ongoing efforts in Planetary Defense, which is the “applied planetary science” to address the NEO impact hazard. One […]
Category:
Science Mission Directorate, Asteroids, Planetary Defense, Planetary Defense Coordination Office, Planetary Science, Planetary Science Division
Posted on
October 17, 2023
Sign up for our newsletter:
Categories
6
1
10
287
2
1
1
1
6
39
1
131
22
1
4
222
125
28
30
1
14
25
1
1
1
99
4
183
3
19
32
15
6
6
8
15
10
10
6
2
1
8
29
49
129
1
145
2
2
15
94
40
4
2
2
2
1
1
3
10
52
1
143
14
6
34
4
1
1
41
5
14
10
2
27
2
1
193
1
15
22
97
1
1
79
11
6
3
87
3
24
2
316
10
51
17
17
1
61
1
40
1
12
6
2
28
4
2
10
2
1
203
324
1
2
1
1
1
5
10
3
1
2
274
3
17
3
1
3
6
5
3
28
1
1
4
11
1
1
13
2
1
319
18
5
1
5
1
9
150
1
2
42
4
4
36
23
1
586
2
1
9
1
1
3
1
1
348
132
Blog Posts
A Winter Blanket Covers North Carolina
February 6, 2026
NASA Selects Two Earth System Explorers Missions
February 5, 2026
Career Spotlight: Welder (Ages 14-18)
February 5, 2026
