A quarter of a century ago, NASA released the “first light” images from the agency’s Chandra X-ray Observatory. This introduction to the world of Chandra’s high-resolution X-ray imaging capabilities included an unprecedented view of Cassiopeia A, the remains of an exploded star located about 11,000 light-years from Earth. Over the years, Chandra’s views of Cassiopeia […]
Posted on
September 3, 2024
Sign up for our newsletter:
Categories
14
1
55
4
1
8
1
1
235
1
1
90
31
1
10
108
1
1
13
2
3
3
2
1
10
51
28
1
29
3
335
2
146
185
1
1
132
10
1
43
1
324
361
50
13
128
210
18
2
12
4
4
13
10
1
2
1
1
25
199
1
37
16
1
1
2
158
1
1
3
1
24
19
1
2
79
25
135
18
1
18
2
40
2
1
6
15
4
9
14
10
1
9
1
14
6
1
4
303
3
15
6
2
1
1
3
42
1
10
100
31
1
11
8
1
3
16
14
1
326
12
2
3
1
35
14
1
1
18
148
10
41
5
1
4
9
6
6
1
5
48
23
2
2
31
5
6
1
2
1
3
10
37
1
63
1
3
281
7
16
3
2
2
151
1
2
599
25
2
9
98
4
1
7
6
103
30
Blog Posts
I Am Artemis: Erik Richards
March 27, 2026