Astronomy Beta
David Hammen
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207 Answers

Newest Activity Votes
40
Is it possible that the shadow of The Moon is a single dot during solar eclipse?
Sep 15 at 19:13
28
Why can't our Sun be a binary with Jupiter as a T or Y dwarf?
Jun 5 '16 at 20:36
28
Is the Earth-Sun distance 1.012 AU?
May 18 '16 at 13:26
27
Why does the Earth have a z-component at the start of the J2000 epoch?
Jul 14 at 16:47
27
Will Earth lose the Moon before the Sun goes into supernova?
Nov 20 '14 at 8:50
22
Is there any planet/star bigger than VY Canis Majoris?
Jan 20 '15 at 20:13
21
How did the Earth come to be in orbit around the sun?
Jun 6 '16 at 9:58
20
Why can't we see distant galaxies with the naked eye?
Jan 15 '15 at 13:48
19
How does the Moon's gravity affect Earth's oceans despite Earth's stronger gravitational pull?
Aug 15 at 15:15
19
Does a star fuse helium to beryllium on the main sequence?
Nov 5 '18 at 22:48
19
Simple experimental evidence that Earth revolves around Sun
Jul 9 '18 at 20:35
19
Why is the Earth-Moon distance not the same at each perigee/apogee?
Jan 24 '18 at 6:17
18
Why doesn't the sun pull the moon away from earth?
Jun 9 '15 at 13:02
18
How can we avoid needing a leap year/second?
Sep 17 '15 at 18:13
16
Does Sun have a reflection on Earth?
Jun 20 '15 at 9:19
16
Are there more stars than all the words ever spoken by humans?
Feb 18 '15 at 22:04
15
How can 'HD 140283' be older than the universe?
Dec 19 '16 at 12:00
15
Is there any practical use for astronomy?
Apr 1 '15 at 22:49
15
Why doesn't Earth's axis change during the year?
Jan 3 '15 at 9:42
14
Is Pluto a “proto-planet”?
Jun 24 '15 at 14:39
12
Explain to a 4-year old why people below the equator are not tilted or suspended upside down
Jan 7 '18 at 18:24
11
How can tidal heating lower Io's orbit?
Feb 14 '18 at 10:36
11
Why is there no hurricane on the Sun?
Nov 7 '17 at 14:22
11
Why do Earth and moon move apart but binary black holes move closer?
Jul 19 '17 at 17:43
10
When did people discover that the Earth is not an ideal sphere, but a little flattened?
Sep 15 at 4:16
10
Can we see evidence of sunspots on other stars
Sep 13 at 23:16
10
How can we hear the sound of the Sun?
Jan 9 '16 at 17:24
10
What is the orbit of Earth around the Sun?
Dec 18 '14 at 15:36
9
Contradiction of special theory of relativity and quantum mechanics
Jun 30 '17 at 3:02
9
Can you still see Polaris even if you are in the south pole?
Jul 1 '16 at 19:21
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