Patches of the Sun’s surface often show strong magnetic fields. These fields can emerge within a matter of hours, and can decay slowly or quickly, sometimes over days, weeks, or even months. Thanks to a new study about these long-lived active regions, we now know much more about the patches where these strong magnetic fields […]
Posted on
March 14, 2026
Sign up for our newsletter:
Categories
5
136
14
17
13
12
46
373
3
1
14
1
1
189
11
10
2
5
3
3
3
1
102
1
11
1
1
390
1
21
18
11
2
41
1
6
59
663
1
13
18
13
8
1
3
35
3
1
2
365
4
29
235
1
1
2
4
281
4
1
1
5
10
1
18
134
28
4
3
1
159
14
7
24
300
55
10
211
2
2
14
1
62
15
19
95
56
1
33
1
3
6
388
3
10
19
1
19
9
1
1
46
2
1
1
48
1
12
20
14
1
26
7
141
1
113
17
4
222
6
2
1
19
3
2
3
1
41
46
4
6
1
13
37
6
202
7
17
172
6
1
3
11
1
1
8
112
46
30
1
1
3
107
10
6
3
21
46
109
1
1
67
37
70
410
1
11
1
1
3
2
10
152
2
11
29
2
1
38
1
30
34
2
2
6
59
2
1
13
114
3
Blog Posts
NASA Opens Applications for Next Class of Flight Directors
October 2, 2026