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Event-horizon
New post in Event-horizon
Does time exist without Gravity?
February 21st, 2020
spacetime
general-relativity
observers
event-horizon
time
What happens when a black hole dies?
August 1st, 2022
event-horizon
thermodynamics
hawking-radiation
singularities
black-holes
Why is it hard to detect a black hole
February 24th, 2020
general-relativity
event-horizon
electromagnetic-radiation
black-holes
gravity
How can the tidal force due to a black hole tear apart the observer inside?
July 15th, 2020
tidal-effect
event-horizon
gravity
black-holes
general-relativity
Falling into a black hole
July 29th, 2020
general-relativity
black-holes
observers
event-horizon
Does cosmic censorship rule out stable toroidal black holes? How?
August 1st, 2022
topology
cosmic-censorship
event-horizon
causality
black-holes
How can black hole increase its mass?
August 1st, 2022
observers
event-horizon
mass-energy
black-holes
general-relativity
Is it possible that black holes are also neutron stars, but so dark that we cannot see them?
August 1st, 2022
neutron-stars
stability
event-horizon
astrophysics
black-holes
Gravity on supermassive black hole's event-horizon
August 18th, 2020
general-relativity
gravity
black-holes
event-horizon
causality
How can Schwarzschild coordinates be measured?
August 1st, 2022
event-horizon
general-relativity
black-holes
differential-geometry
coordinate-systems
Closed timelike curves in the region beyond the ring singularity in the maximal Kerr spacetime
June 14th, 2020
time-travel
event-horizon
spacetime
general-relativity
kerr-metric
What is the radius of the event horizon?
August 1st, 2022
metric-tensor
black-holes
gravity
general-relativity
event-horizon
A small black hole asymptotically approaches a big black hole's event horizon. Will it seem to be frozen there, or will it seem to merge?
August 1st, 2022
observers
general-relativity
reference-frames
black-holes
event-horizon
What is the physical size of a black hole?
April 12th, 2020
general-relativity
black-holes
astrophysics
event-horizon
What happens to light that falls into a black hole?
August 13th, 2020
event-horizon
singularities
photons
black-holes
visible-light
When we are talking about black hole evaporation - what exactly happens?
January 14th, 2022
event-horizon
hawking-radiation
black-holes
astrophysics
Event Horizon violability?
April 10th, 2020
event-horizon
black-holes
gravity
Shouldn't black holes exert the same gravitational force as an object of similar mass but lower density?
August 1st, 2022
gravity
black-holes
curvature
event-horizon
general-relativity
If an anti-matter singularity and a normal matter singularity, of equal masses, collided would we (outside the event horizon) see an explosion?
April 3rd, 2020
black-holes
antimatter
singularities
event-horizon
de Sitter cosmological limit
July 7th, 2020
cosmology
cosmological-inflation
hawking-radiation
de-sitter-spacetime
event-horizon
Geometry inside the event horizon
August 1st, 2022
singularities
event-horizon
topology
general-relativity
black-holes
Relativistic Computation?
January 20th, 2021
event-horizon
special-relativity
black-holes
Why must a singularity form inside a black hole?
July 4th, 2020
general-relativity
black-holes
event-horizon
matter
singularities
Information encoded on the surface of a black hole
April 5th, 2022
unitarity
holographic-principle
information
event-horizon
black-holes
Understanding Time Dilation at the Event Horizon
April 19th, 2020
general-relativity
black-holes
time-dilation
observers
event-horizon
When does a singularity start to exist during a black hole formation?
August 16th, 2022
event-horizon
general-relativity
singularities
black-holes
Is the edge of our Hubble Sphere within our Cosmic Event Horizon and why?
June 20th, 2020
event-horizon
spacetime
speed-of-light
cosmology
Fighting a black hole: Could a strong spherical shell inside an event horizon resist falling in to the singularity?
August 1st, 2022
black-holes
singularities
event-horizon
Can two particles remain entangled even if one is past the event horizon of a black hole?
July 12th, 2020
black-holes
quantum-entanglement
event-horizon
Does time stop in black holes?
March 12th, 2021
general-relativity
black-holes
event-horizon
singularities
escape-velocity
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