Astronomy Beta
David Hammen
  • Houston, TX
  • Member for 7 years
Profile Activity
Summary Answers Questions Tags Badges Bookmarks Bounties Reputation All actions

320 Answers

Votes Activity Newest
5
defining the period of an year on earth
20 hours ago
22
How do Lagrange points L2 and L3 form?
Oct 17 at 21:26
41
What is the most accurate measurement of the Astronomical Unit?
Oct 17 at 18:29
2
Which Venus scientists discovered the hole in the ozone layer?
Oct 14 at 5:56
0
What are opinions of most planetary scientists on this study (link below), were there already some complex reviews in scientific journals?
Oct 14 at 4:11
6
Why does the difference between terrestrial times and universal time, $\Delta T$, have such a strange behaviour?
Oct 1 at 6:30
6
What is k2, how does it relate to Io's volcanism and how can Juno constrain its value?
Sep 27 at 12:51
17
Is Jupiter warming the Earth? (Earth, Sun Jupiter system)
Sep 13 at 1:29
4
How was Theia discovered?
Aug 18 at 11:58
2
Why does light accelerate instantaneously to c, while no other phenomena do it?
Aug 16 at 16:19
5
Why doesn't the Moon fall out of orbit?
Aug 11 at 10:23
3
...but where did Mars' atmosphere actually GO?
Aug 8 at 22:08
2
How is space a vacuum when there are planets, gases, etc?
Aug 8 at 16:35
8
How to resolve the Moon's observed angular velocity with that given by Kepler's Third Law
Jul 30 at 10:09
5
What is the probability of life having developed or going to develop in our solar system another time?
Jul 22 at 11:45
3
Spectral lines of the Sun?
Jul 20 at 14:26
3
Would people on opposite sides of the earth see different details of the moon, if so are there actual photos demonstrating this?
Jul 17 at 9:29
6
What are the benefits of collecting asteroid samples in situ rather than just waiting for bits of asteroids to fall as meteorites?
Jul 10 at 0:21
6
Winter in June in the future for North hemisphere
Jul 2 at 16:02
6
Moons with synchronous rotation in our solar system
Jul 2 at 14:34
6
Why was it so difficult to figure out the form of the Milky Way?
Jun 24 at 14:54
28
Why do sunspot rise in number "precisely" every eleven years?
Jun 20 at 15:28
4
Is the transition between ice giants and Jupiter-like gas giants somewhat fluid?
Jun 16 at 18:56
1
Does Soter take into account Pluto's and Orcus' masses when determining Neptune's planetary discriminant µ?
Jun 16 at 17:06
1
What observations show that galaxies are made of matter instead of anti-matter?
Jun 12 at 7:04
4
Is the dark matter just regular matter out of the observable universe?
Jun 11 at 4:50
4
Sun traveling North & South in this graphic?
Jun 11 at 1:24
31
Is it a coincidence that on the far side of the moon almost no seas are visible?
Jun 8 at 23:31
50
Is the sun's volume shrinking currently?
May 28 at 10:33
14
How are the solar flares from May 23, 2021 extraordinary?
May 24 at 10:17
1
2 3 4 5
…
11

Your privacy

By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy.