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Astronomy

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Awarded 1639 times.
Always orient a sundial towards polar north?
Awarded yesterday
Recurring flying object near the Big Dipper
Awarded yesterday
What are the chances of finding an element in the outer solar system that otherwise can't be found on earth?
Awarded Jul 17 at 8:05
In the onion-like elemental layers of a large mature star the neon is closer to the surface than oxygen, even though it is more massive... Why?
Awarded Jul 16 at 13:37
Are any Population III stars red dwarfs?
Awarded Jul 11 at 14:11
Why is Uranus colder than Neptune?
Awarded Jul 2 at 0:32
Are there really half-a billion visible supernovae exploding all the time?
Awarded Jun 26 at 8:27
Can there be elliptical rings around a planet?
Awarded Jun 26 at 6:21
What is the gravitational lensing focal distance of a white dwarf star?
Awarded Jun 22 at 18:40
Why don't they put more spare gyroscopes in expensive space telescopes?
Awarded Jun 20 at 7:28
Why aren't reflector telescopes built with an offset secondary mirror?
Awarded Jun 19 at 22:19
Why does Mars have a jagged light curve?
Awarded Jun 11 at 20:43
How are neutrinos able to cause a supernova explosion?
Awarded Jun 8 at 16:05
Neutrino interaction with dense molecular structures
Awarded Jun 7 at 14:41
Vera C. Rubin's LSST's ginormous camera's shutter; why does it open/close 1000 times a night & is this typical for large-format survey telescopes?
Awarded Jun 4 at 19:28
How many individual extrasolar "shiny" objects has humanity identified?
Awarded Jun 3 at 13:22
Why do we want to normalize the solar abundance of elements to Si?
Awarded May 19 at 15:57
Can individual rings of Saturn be considered satellites?
Awarded May 10 at 21:42
How did the ancient cultures determine that the year was actually a fraction of an extra day beyond 365 days?
Awarded Apr 29 at 18:17
Why is the metallicity of dwarf galaxies low?
Awarded Apr 29 at 14:51
Based off of the study that found the universe has a positive curvature, how big would the whole universe be?
Awarded Apr 25 at 22:41
Worthwhile to put a telescope on the far side of the Sun?
Awarded Apr 23 at 11:18
Why is there a year 1 B.C., a year 0, and a year 1 A.D. in NASA’s Five Millennium Canon of Solar Eclipses?
Awarded Apr 15 at 16:33
Why are the solar prominences visible during a total solar eclipse - orange? Is the sun orange?
Awarded Apr 14 at 11:10
How to discover Neptune from the Uranus orbit (by computer simulation)
Awarded Apr 11 at 9:08
How precise are future Solar eclipse timing, path and dates, what could change timing/path?
Awarded Apr 10 at 16:46
What caused pink flares during the eclipse
Awarded Apr 9 at 22:27
During a total solar eclipse is it possible to see solar flares with the naked eye?
Awarded Apr 4 at 20:57
Can stars form in the stellar halo?
Awarded Apr 3 at 14:52
What are the chances of a star colliding with another during a galactic collision?
Awarded Apr 1 at 14:02
Do Pulsar stars make actual sounds?
Awarded Mar 27 at 10:36
Why does nuclear fusion generate heat?
Awarded Mar 26 at 3:15
Earth is Tilted, but in reference to What Object / relative to what?
Awarded Mar 24 at 17:02
Why is it ok for people to be saying that dark matter makes up x amount of the universe when we don't know what it is?
Awarded Mar 22 at 3:20
why does pluto have a high orbital inclination
Awarded Mar 21 at 13:35
Where in a star are the spectral absorption lines formed?
Awarded Mar 19 at 14:52
Generate a uniform distribution on the sky
Awarded Mar 18 at 0:33
Are galaxies growing, shrinking or stable?
Awarded Mar 16 at 8:11
Multiply Earth's orbital speed with square root of 2
Awarded Mar 13 at 1:07
The moon in the first phase visible in the sky is tilted
Awarded Mar 10 at 16:12
Color index B-V of the dimming Betelgeuse
Awarded Mar 10 at 0:26
Why are IAU constellation boundaries not rectilinear?
Awarded Mar 2 at 14:46
Milky Way position on the sky
Awarded Mar 2 at 0:55
Unreasonable ratios in astronomy as ways of remembering
Awarded Feb 28 at 2:47
Is it coincidence that the earth's rotation and revolution are in the same direction?
Awarded Feb 25 at 12:57
Why was the standard distance set to 10 parsec and not simply to 1 parsec?
Awarded Feb 25 at 2:07
How was the hypothetical ninth planet kicked so far out of the Solar System?
Awarded Feb 22 at 9:31
How do I know it is safe to remove eclipse glasses when viewing a total solar eclipse?
Awarded Feb 16 at 21:18
How is the Universe's Expansion Accelerating if the Hubble Constant is Decreasing?
Awarded Feb 16 at 2:53
Safest Place on Earth from Falling Meteorites
Awarded Feb 14 at 11:52
Gravitational mirroring: Can we theoretically see the Milky Way using a telescope?
Awarded Feb 12 at 18:26
Does seeing a gravitationally lensed/magnified galaxy imply that they could also see us as well?
Awarded Feb 12 at 15:19
If 50 tons or more of debris falls to earth everyday, is Earth getting heavier?
Awarded Feb 12 at 15:10
Is the amount of dark matter the same as you look back through time (further away from earth)?
Awarded Feb 9 at 3:55
What on-site equipment is installed with radio telescopes?
Awarded Feb 5 at 12:17
How are we observing the newly discovered "dark galaxy" J0613+52, if it has no stars and is so far away from other galaxies?
Awarded Jan 29 at 18:56
As of now how much larger is our practically observable universe compared to just prior to JWST becoming operational
Awarded Jan 29 at 10:01
Was this video shot with a ground based hobby astronomer telescope?
Awarded Jan 23 at 11:51
How is a Planet's Moment of Inertia Measured Remotely?
Awarded Jan 20 at 1:33
Sedna, VP113 and the likelihood of the PX/Tyche/Thelistos hypotheses
Awarded Jan 17 at 7:47
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