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Is it dark inside the Sun?

the-sun stellar-astrophysics plasma-physics opacity asked Mar 5, 2020 at 20:18

astronomy.stackexchange.com

59 votes

Are the social-distancing measures implemented against SARS-CoV-2 also suppressing the spread of other viruses?

virology theoretical-biology coronavirus epidemiology asked Jun 8, 2020 at 12:59

biology.stackexchange.com

48 votes

Why is the photon clock equivalent to all clocks?

special-relativity time time-dilation thought-experiment asked Aug 3, 2020 at 12:25

physics.stackexchange.com

39 votes

Is it possible to observe space debris with Binoculars?

artificial-satellite debris observation asked Sep 3, 2019 at 11:22

space.stackexchange.com

19 votes

Why are asteroids with zero orbital inclination rare?

asteroids orbital-mechanics orbital-resonance asked Mar 11, 2020 at 2:13

astronomy.stackexchange.com

17 votes

What does the [-] symbol mean in satellite names?

artificial-satellite satellite-flare asked Jul 16, 2020 at 13:13

space.stackexchange.com

10 votes

Would stars have formed in the Universe if atomic hydrogen couldn't make molecular hydrogen?

cosmology stellar-astrophysics hydrogen asked Sep 24, 2020 at 9:43

astronomy.stackexchange.com

9 votes

How is Newton's first law compatible with transport equations?

newtonian-mechanics thermodynamics entropy non-equilibrium asked Feb 10, 2022 at 10:41

physics.stackexchange.com

9 votes

How many stars are in the Milky Way galaxy?

star galaxy milky-way asked Sep 19, 2021 at 20:08

astronomy.stackexchange.com

8 votes

Where can I find an anisotropic PREM-like model for Earth's interior?

geophysics seismology solid-earth asked Apr 4, 2021 at 12:55

earthscience.stackexchange.com

Top Answers

153

How exactly is a normal force exerted, at the molecular level?

physics.stackexchange.com

Why can't we see Saturn's phases from earth?

astronomy.stackexchange.com

Are there any space probes or landers which regained communication after being lost?

space.stackexchange.com

Why does this image of Jupiter look so strange?

space.stackexchange.com

Kepler space telescope undetected planets

astronomy.stackexchange.com

Why do planets and satellites in the Solar system look so wildly different if they came from more or less the same matter?

astronomy.stackexchange.com

What are these strange rays in the sky?

physics.stackexchange.com

Could this estimate of the size and mass of the Chicxulub Impactor be accurate?

astronomy.stackexchange.com

Are all satellites thought to be the result of collisions with the planets?

astronomy.stackexchange.com

What is a black hole's "shadow" and the best angle to view it to measure the spin?

astronomy.stackexchange.com

Why do atoms repel when closer but attract when farther apart?

physics.stackexchange.com

Has an astronaut ever seen another object in LEO pass by that wasn't mission-related?

space.stackexchange.com

How long would it take for a black hole the mass of our sun to swallow our solar system?

astronomy.stackexchange.com

More recent data and simulations of "Milkomeda", the collision of the Milky Way and Andromeda galaxies?

astronomy.stackexchange.com

Explanation for an unexpected rainbow

physics.stackexchange.com

Force and Accleration

physics.stackexchange.com

Is it possible to see stars that are gravitationally lensed by the sun from the ground?

astronomy.stackexchange.com

Why aren't there HiRISE observation footprints near the Martian poles?

space.stackexchange.com

Where can I find historic TLE?

space.stackexchange.com

Do gravitational waves disperse/refract (like EM waves in a prism)?

physics.stackexchange.com

Why are so many companies suddenly working on satellite internet?

space.stackexchange.com

Moon's rotation and revolution

astronomy.stackexchange.com

Where can I find the video of Apollo 16 floodlight mistaken with a UFO?

space.stackexchange.com