On Jan. 7, 1610, Italian astronomer Galileo Galilei peered through his newly improved 20-power homemade telescope at the planet Jupiter. He noticed three other points of light near the planet, at first believing them to be distant stars. Observing them over several nights, he noted that they appeared to move in the wrong direction with […]
Posted on
January 8, 2025
Sign up for our newsletter:
Categories
3
67
36
37
6
663
13
1
1
8
19
9
29
1
2
30
1
1
4
10
1
386
1
26
1
1
3
159
19
152
48
1
222
2
2
371
3
7
13
300
210
17
14
1
6
2
6
1
41
1
17
3
46
1
136
95
55
46
10
3
202
1
107
3
11
1
20
14
1
45
106
10
3
141
2
1
1
6
18
46
2
1
4
46
3
3
1
21
2
11
6
1
2
4
2
2
1
2
1
30
1
5
7
55
3
13
114
1
362
69
1
21
14
10
1
407
11
14
2
3
10
1
187
101
7
4
2
1
2
38
19
4
3
34
29
18
1
6
17
3
27
1
6
388
14
1
55
62
1
1
35
3
1
17
1
15
33
12
58
10
1
6
11
8
3
19
5
13
5
2
10
1
281
1
233
1
10
170
113
133
112
4
1
1
11
3
1
41
23
13
Blog Posts
NASA Celebrates as Artemis Accords Surpasses 75 Signatories
September 28, 2026
Meet NASA’s Artemis II Crew During Houston Public Event
September 28, 2026
What You Need to Know About NASA’s SpaceX Crew-13 Mission
September 28, 2026