Which technique is used to measure huge astronomical distances which are in terms of billions of light years?
42899
How do astronomers measure the distance to a star or other celestial object?
45057
How far away must a galaxy be for its light never to reach us due to the expansion of the universe?
79051
Object emit light distance
103041
How is wavelength actually related to space (/distance)?
97847
Direct observations of a black hole?
70501
How fast is Earth moving through the universe?
147647
Spacetime around a massive cylinder
21084
Size of the universe
10835
How has the age of the Universe been derived from the observations made by the Planck mission?
147202
Would approaching a distant star at near the speed of light unfold its entire history in "fast-forward"?
66972
Is there any way to measure the one-way speed of light?
36719
Gravitational time dilation at the earth's center
15724
Graviational Lensing Data
39778
Star Wars Time Measurement and Dating Systems
125156
Projectile/orbital motion over very long distance
36482
How can laser interferometry be used to measure path difference smaller than wavelength of laser light?
2842
Photons from stars--how do they fill in such large angular distances?