Some 13.8 billion years ago, the universe began with a rapid expansion we call the big bang. After this initial expansion, which lasted a fraction of a second, gravity started to slow the universe down. But the cosmos wouldn’t stay this way. Nine billion years after the universe began, its expansion started to speed up, […]
Category:
Dark Energy, Dark Matter, Euclid, Galaxies, James Webb Space Telescope (JWST), Nancy Grace Roman Space Telescope, SPHEREx (Spectro-Photometer for the History of the Universe and Ices Explorer), Stellar Evolution, The Big Bang, The Universe
Posted on
February 5, 2024
Sign up for our newsletter:
Categories
1
3
1
106
2
14
1
1
7
51
615
10
11
4
13
6
1
23
24
287
140
2
18
1
2
3
2
31
1
3
1
254
52
1
10
1
1
6
13
340
15
117
1
4
10
2
1
11
1
29
1
27
15
4
215
12
188
1
166
1
1
4
2
1
9
6
93
2
8
3
50
15
1
3
2
14
3
1
1
1
6
18
29
17
1
2
41
205
1
10
131
3
377
3
1
4
149
1
2
10
25
31
1
64
37
18
1
18
81
1
25
20
15
29
41
10
2
1
351
4
43
6
1
42
1
2
14
104
153
6
1
1
17
100
1
3
38
4
101
1
57
1
10
2
3
3
190
134
1
1
1
10
9
3
1
11
36
22
2
11
5
6
10
1
5
40
5
9
2
330
2
4
2
1
1
25
1
1
336
12
20
Blog Posts
I Am Artemis: Anton Kiriwas
May 8, 2026