NASA Webb Finds Early-Universe Analog’s Unexpected Talent for Making Dust

Using NASA’s James Webb Space Telescope, astronomers have spotted two rare kinds of dust in the dwarf galaxy Sextans A, one of the most chemically primitive galaxies near the Milky Way. The finding of metallic iron dust and silicon carbide (SiC) produced by aging stars, along with tiny clumps of carbon-based molecules, shows that even […]
Posted on January 6, 2026
Sign up for our newsletter:

Categories

221
8
1
2
1
10
4
10
4
2
29
625
43
3
1
6
29
1
1
1
1
6
2
1
1
2
1
196
370
1
6
15
346
1
3
1
11
1
1
18
4
18
2
198
1
37
59
11
17
2
52
6
2
2
3
24
3
1
10
3
1
Io
4
4
12
14
5
149
12
1
14
6
4
3
1
263
1
10
10
103
10
13
1

Blog Posts

Newsletter Archive