Since the big bang, the early universe had hydrogen, helium, and a scant amount of lithium. Later, some heavier elements, including iron, were forged in stars. But one of the biggest mysteries in astrophysics is: How did the first elements heavier than iron, such as gold, get created and distributed throughout the universe? “It’s a […]
Posted on
April 29, 2025
Sign up for our newsletter:
Categories
7
2
296
42
44
1
1
5
7
6
3
1
29
10
17
39
134
1
17
33
6
1
16
3
1
203
1
105
10
1
198
1
10
104
353
1
10
1
68
2
51
3
6
1
3
1
1
2
44
2
4
1
137
21
1
93
4
2
110
13
2
11
10
2
1
1
5
18
163
2
1
29
13
108
15
21
3
55
1
33
6
14
395
6
1
62
33
180
4
26
14
38
3
1
3
25
2
18
17
2
13
4
3
110
3
374
48
4
1
1
13
6
1
1
15
12
1
271
12
57
34
1
5
35
6
1
361
2
18
5
124
1
6
1
8
1
11
1
155
5
2
10
226
10
2
10
10
1
10
1
2
1
149
10
3
41
20
2
1
8
14
3
14
1
30
2
214
45
2
17
1
4
640
1
1
10
1
2
14
26
1
377
37
47
2
18
1
Blog Posts
APOD: 2026 August 11 – Six Moons of Saturn
August 11, 2026
Bountiful Roebuck Bay
August 11, 2026
Newsletter Archive
- ‹ previous
- 3 of 3