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spacetime
Gravitational Lensing: How Gravity Bends Light in Space
Gravitational lensing is the bending of light by gravity, turning massive objects into natural telescopes that reveal the hidden structure of the universe.
Gravitational Wave Detection: How LIGO Reads Ripples in Spacetime
Gravitational wave detection uses laser interferometry to measure spacetime ripples from merging black holes and neutron stars.
Andromeda Paradox: When "Now" Depends on Who Is Walking
The Andromeda Paradox is a thought experiment showing that two observers moving at different velocities disagree about what is happening "now" at distant...
Black Hole Information Paradox: Could Spacetime Remember?
Physicist Florian Neukart proposes spacetime stores quantum information at the Planck scale, offering a new approach to the black hole information paradox.
The Andromeda Paradox Shows That "Now" Is a Local Illusion
Is the future already written? Physicist Sabine Hossenfelder tackles the mind-bending Andromeda Paradox that challenges our understanding of time.
Warp Drive Physics: The Loophole That Survived Thirty Years
Is a warp drive possible? After 30 years stuck on impossible negative energy, physicists found a slower loophole built from real, known physics.
