Guessing your age might be a popular carnival game, but for astronomers it’s a real challenge to determine the ages of stars. Once a star like our Sun has settled into steady nuclear fusion, or the mature phase of its life, it changes little for billions of years. One exception to that rule is the […]
Category:
Nancy Grace Roman Space Telescope, Galaxies, Stars, & Black Holes, Goddard Space Flight Center, Heliophysics, Missions, Science & Research, Solar Dynamics Observatory (SDO), Stars, Sunspots, TESS (Transiting Exoplanet Survey Satellite), The Solar System, The Sun, The Universe
Posted on
April 4, 2024
Sign up for our newsletter:
Categories
4
299
17
46
69
1
67
36
386
3
107
1
62
48
3
10
105
4
34
33
1
7
45
2
17
27
1
6
18
1
41
1
11
55
13
14
2
1
371
3
113
12
202
15
1
5
1
10
4
11
3
18
6
6
1
3
37
6
46
1
21
10
2
10
1
101
8
407
11
3
1
2
11
2
2
1
1
30
38
13
18
3
29
17
1
3
13
114
6
6
3
10
661
53
152
2
14
1
4
30
35
3
1
1
2
4
187
17
1
14
2
1
1
1
3
1
1
5
159
29
46
5
281
133
7
388
10
2
2
10
1
2
210
14
1
18
1
3
3
1
58
11
22
41
1
54
136
3
8
1
1
13
1
14
1
10
19
9
233
1
141
1
2
1
95
1
4
1
46
1
26
2
1
19
13
20
362
3
222
21
6
1
170
3
2
7
112
6
1
1
Blog Posts
APOD: 2026 September 26 – Mirrored Meteor and Milky Way
September 26, 2026
NASA, Boeing to Provide Update on Starliner Development
September 26, 2026
NASA Welcomes San Marino Signing the Artemis Accords
September 25, 2026