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
1
150
4
36
5
586
1
28
9
1
4
3
2
1
348
1
319
6
1
287
1
1
6
39
1
2
42
1
4
125
30
23
1
14
2
25
1
222
1
99
183
3
32
6
1
10
10
2
132
29
1
49
129
10
8
2
1
1
4
2
2
1
131
3
22
4
28
34
1
4
1
1
1
1
4
19
5
14
5
8
2
27
2
15
5
1
15
1
15
22
1
193
145
2
15
1
94
79
40
97
2
3
87
2
1
1
24
10
143
51
14
17
17
6
10
1
52
1
40
12
41
28
10
2
10
2
203
1
1
1
1
5
10
324
11
6
1
3
316
3
1
274
2
1
3
1
6
61
6
2
4
3
1
1
1
1
11
1
2
1
13
3
18
5
2
5
3
17
9
Blog Posts
NASA Selects Two Earth System Explorers Missions
February 5, 2026
Career Spotlight: Welder (Ages 14-18)
February 5, 2026
NASA’s SpaceX Crew-12 to Study Adaptation to Altered Gravity
February 5, 2026