dagorym

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5,260 reputation
1131
bio website thomasstephens.info
location Spanish Fork, UT
age 41
visits member for 2 years, 7 months
seen Feb 21 at 20:04
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Self-taught programmer, Astronomy Ph.D. currently working as a contractor for NASA as a developer on the NASA Fermi Gamma-ray Space Telescope.

54 Answers

newest activity votes
24
What is the current status of Pluto?
jun 1 '11 at 20:14
19
Can the apparent equal size of sun and moon be explained or is this a coincidence?
jun 1 '11 at 19:48
17
What is a “Trojan Moon”?
jun 21 '11 at 1:01
16
How do astronomers measure the distance to a star or other celestial object?
jun 12 '11 at 3:07
15
Given a photo of the Moon, taken from Earth, is it possible to calculate the position of the photographer's site?
jun 30 '11 at 21:13
15
What is the strongest evidence that anti-matter exists?
jun 30 '11 at 16:27
15
Significance of letters in Hertzsprung-Russell (H-R) diagram
jun 15 '11 at 14:21
15
What is an asterism compared to a constellation?
jun 8 '11 at 20:58
14
Is there any evidence for the claim that the moon was once part of the Earth?
jun 2 '11 at 13:49
14
Cameras in Voyager probes
jun 12 '11 at 15:20
14
How would the night sky appear at the edge of the galaxy?
jun 13 '11 at 17:21
14
Does the Moon's core still contain significant heat?
jun 13 '11 at 15:01
14
Why don't more rocky planets/moons have appreciable atmospheres?
jun 2 '11 at 2:55
13
Has everything we see happened in the past?
jun 20 '11 at 15:16
13
Why is the Ritchey–Chrétien telescope preferred in professional astronomy?
jun 8 '11 at 16:11
11
How to find the Andromeda galaxy without using a go-to telescope?
jun 21 '11 at 21:42
11
Why did the june 2011 lunar eclipse last so long?
jun 17 '11 at 2:18
9
Which is the strongest meteor shower expected in the next years in the Northern hemisphere?
jun 1 '11 at 21:07
9
What does the sky look like to human eyes from orbit?
jun 8 '11 at 21:45
9
What is the name of our Galaxy?
jun 8 '11 at 18:59
9
In what ways can a lunar eclipse occur?
jun 6 '11 at 16:14
9
Are there websites or programmes that permit a simulation of the night sky in the past and the future on an ordinary computer?
jun 4 '11 at 13:20
9
What age to start kids with astronomy
jun 1 '11 at 20:07
8
Why did the ancients fail to discover that the Earth orbits the Sun?
jul 4 '11 at 18:00
8
Binary stars' apparent magnitude
jun 8 '11 at 23:22
8
How do you respond to questions like “Have you ever observed a UFO?”
jun 6 '11 at 0:02
8
What is the typical career path to become a professional Astronomer?
jun 1 '11 at 19:52
7
Solar system, visible stars and deep sky objects
jul 3 '11 at 23:16
7
Do days and months on the Moon have names?
jun 27 '11 at 15:29
7
Where to find Lunar Eclipse data
jun 14 '11 at 13:45
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