benrg's user avatar
benrg's user avatar
benrg's user avatar
benrg
  • Member for 4 years, 7 months
  • Last seen more than a week ago
47 votes
Accepted

How do we know that black holes are spinning?

26 votes

Is there anything currently 46 billion light years away from Earth that we can see?

25 votes
Accepted

If the universe has no true center, could it have antipodes?

23 votes

From an outsider's perspective, how can a black hole grow if nothing ever crosses the event horizon?

14 votes

Could there really be a preferential direction to the speed of light?

12 votes
Accepted

How is the Cosmic Microwave Background so big?

12 votes

Does a measuring stick with a size of a billion lightyears in intergalactic space keep the same length in expanding space?

8 votes
Accepted

In an isolated binary system, can the expansion of the universe balance out collapsing orbit due to gravitational waves?

8 votes

Is the age of the Universe really 13.8 billion years?

7 votes

How do we know the expansion of the universe is not centered around our position?

6 votes

Is there a logical reason why we see no back and forth aberration effects when observing binary stars?

6 votes

Is it "nonsense to even talk about" objects outside the observable universe not having gravitational influence on us? (finite speed of gravity)

6 votes

Why is the observable Universe larger than its age would suggest?

5 votes
Accepted

Why is the Cosmic Microwave Background at the same distance no matter the direction we look?

5 votes

How far away are objects whose light will never reach us, because of the expansion of the universe?

5 votes

Confused about rubber sheet analogy!

5 votes

Do black holes "store" ancient light?

5 votes
Accepted

Minimum size of closed universe that satisfies ╬ęK < 0.005

5 votes

In relativity why does matter bend spacetime in a downward direction

5 votes

Why would galaxies (and galaxy clusters) be unaffected by the expansion of space?

5 votes

Why are there not a whole number of solar days in a solar year?

5 votes

Gravitational waves vs. "normal gravity"

4 votes

Distinction between metric expansion and objects just moving apart from each other?

4 votes

How does the hypothesis of the "inconstant Hubble constant" solve the current crisis in cosmology?

4 votes

In km/h, what actually is the "speed" of Andromeda away from us: cosmologically?

4 votes

Does the twin paradox work in an almost empty universe?

4 votes

Shouldn't the estimate of the universe's age be higher, not lower, after the attractive strength of gravity is taken into account?

4 votes
Accepted

Calculating the present comoving distance or light travel distance of distant objects when only one value is given?

4 votes

How are younger objects outside our observable universe when the older CMB is an observer's temporal "edge"?

4 votes

Must time pass more slowly, relative to our inertial reference frame, inside galaxies that are currently located at half way to the Hubble Horizon?