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Astronomy

Famous Question

 Famous Question
Question with 10,000 views. This badge can be awarded multiple times.
Awarded 275 times.
What could be an explanation for a satellite-like moving light in the night sky that dims over time
Awarded 2 days ago
Is it possible for a virus to come from a meteorite?
Awarded Aug 29 at 21:17
To several decimal places, how many days are in one year?
Awarded Aug 13 at 0:56
How to calculate moon overhead and underfoot time?
Awarded Aug 7 at 21:12
What defines a stable orbit?
Awarded Aug 4 at 16:53
Why is the Moon's orbit so complicated?
Awarded Aug 1 at 17:20
Difference between quasar and Active Galactic Nuclei?
Awarded Jul 6 at 11:10
Will Earth rotate backwards in the future?
Awarded Jul 5 at 18:05
Why doesn't the Earth's rotation throw us off the surface?
Awarded Jul 5 at 17:21
Is there a maximum size for a black hole?
Awarded Jun 22 at 2:16
If an asteroid was to collide with Earth, how much warning would we have?
Awarded Jun 20 at 16:40
Is everything quantum entangled?
Awarded Jun 19 at 18:20
How did the ancient cultures determine that the year was actually a fraction of an extra day beyond 365 days?
Awarded May 17 at 21:05
what planet is the most radioactive?
Awarded May 15 at 1:55
Equation to find distance between objective and eyepiece
Awarded May 10 at 19:25
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 May 4 at 23:27
Is the influence of gravity instantaneous?
Awarded May 1 at 10:18
How does moonrise/moonset azimuth vary with time?
Awarded Apr 22 at 19:31
Position of Neutron stars in H R diagram
Awarded Apr 16 at 16:02
Is it safe to view a solar eclipse with the naked eye during totality?
Awarded Apr 8 at 19:41
What is the difference between New Moon day and Lunar Eclipse?
Awarded Apr 8 at 16:56
How do I know it is safe to remove eclipse glasses when viewing a total solar eclipse?
Awarded Apr 7 at 23:11
How much does the sky change in a few thousand years?
Awarded Mar 27 at 21:25
Will just a glimpse (less than a second) of sun during partial solar eclipse damage eyes?
Awarded Mar 27 at 16:05
Is there any planet bigger than a star?
Awarded Mar 19 at 12:55
Why is twilight longer in summer than winter and shortest at the equinox
Awarded Mar 8 at 6:42
What is this, red, blue, white twinkling, star? [duplicate]
Awarded Feb 23 at 23:05
What causes the Earth to have gravity?
Awarded Feb 19 at 12:25
JPL Horizons sending too many emails
Awarded Feb 9 at 13:45
How was the distance from the Earth to the Sun determined
Awarded Feb 3 at 21:35
What does a solar eclipse at 99% totality look like?
Awarded Jan 25 at 3:27
How much of a difference do good lenses make?
Awarded Jan 17 at 15:05
Approximate conversion of redshift 'z' to a time and/or distance, when reading papers?
Awarded Jan 15 at 5:35
How to explain this trajectory of the moon taken from the same spot on Earth over 28 days?
Awarded Jan 10 at 1:55
How does the Earth move in the sky as seen from the Moon?
Awarded Dec 7, 2023 at 7:30
How to calculate when the moon is highest in the sky to the earthbound observer?
Awarded Dec 6, 2023 at 16:34
Fate of Jupiter when our sun dies
Awarded Nov 29, 2023 at 15:18
How did the Milky Way quasar not disrupt life on Earth?
Awarded Nov 15, 2023 at 11:11
Can the difference between a star and a galaxy which are point sources be detected?
Awarded Nov 14, 2023 at 18:28
Where can I find a catalog of all stars in the Milky Way?
Awarded Oct 26, 2023 at 1:45
During an eclipse, how big is the shadow of the moon on the earth?
Awarded Oct 11, 2023 at 17:09
How does the appearance of the analemma vary with latitude
Awarded Sep 29, 2023 at 20:49
Is the moon "perfectly" tidally locked and, if not, how long would it take us to observe it's rotation?
Awarded Sep 16, 2023 at 5:09
Polynesian wayfinding techniques - how does this work?
Awarded Aug 30, 2023 at 23:55
Shouldn't very very distant objects appear magnified?
Awarded Aug 20, 2023 at 15:50
Is Venus in some way tidally locked to... Earth?
Awarded Aug 14, 2023 at 12:20
Do meteorites streak across the sky in the same direction?
Awarded Aug 13, 2023 at 8:52
Local Sidereal Time
Awarded Aug 8, 2023 at 1:27
If I want to learn about astrophysics, should I study up on mathematics?
Awarded Jul 21, 2023 at 6:05
What would happen if we stepped on the Sun?
Awarded Jun 28, 2023 at 1:25
How early could we detect an asteroid the size of the one that caused the extinction of the dinosaurs?
Awarded Jun 22, 2023 at 17:46
Which atom is a Neutron star made of?
Awarded Jun 6, 2023 at 12:35
Could someone explain RA/dec in simple terms?
Awarded Jun 4, 2023 at 15:45
What keeps galaxies together?
Awarded May 27, 2023 at 11:18
Can a solar flare destroy every electronic item on earth?
Awarded May 27, 2023 at 3:51
Why there is no smoke around the Sun?
Awarded May 6, 2023 at 9:56
What point does Earth actually orbit?
Awarded Apr 14, 2023 at 4:21
What is in the center of the universe?
Awarded Apr 9, 2023 at 0:41
Can gravitational waves pass through a black hole?
Awarded Apr 7, 2023 at 5:18
Does the sun's rising/setting angle change every few months?
Awarded Mar 23, 2023 at 19:11
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