Gravitational Lensing — Topic Summaries
AI-powered summaries of 15 videos about Gravitational Lensing.
15 summaries
Travel INSIDE a Black Hole
Black holes aren’t just cosmic vacuum cleaners—they’re regions where gravity warps light and time so dramatically that even light can’t escape once...
How One Supernova Measured The Universe
A dying star in a distant galaxy—SP1149—was predicted to go supernova in November 2015 with striking timing accuracy, and the payoff was more than a...
Does Time Cause Gravity?
Gravity isn’t best understood as something that “warps” time. In general relativity, the key relationship runs the other way: differences in how time...
Planck's Constant and The Origin of Quantum Mechanics | Space Time | PBS Digital Studios
Planck’s constant is the bridge between everyday physics and the quantum rules that govern the microscopic world—and its fingerprints show up even in...
The NEW Crisis in Cosmology
Cosmology’s “Hubble tension” has sharpened rather than softened: two high-precision ways of measuring the universe’s expansion rate still disagree,...
Is The Universe Finite?
A new analysis of cosmic microwave background data is reviving a long-running question in cosmology: is the universe finite and “closed,” or infinite...
Does Dark Matter BREAK Physics?
Dark matter is real, and the strongest evidence points to it behaving like an unseen form of matter rather than a flaw in gravity—yet its identity...
How Many Black Holes Are In The Solar System?
Dark matter may be detectable without particle detectors or telescopes—by treating the solar system itself as a giant “primordial black hole” (PBH)...
Are Cosmic Strings Cracks in the Universe?
Cosmic strings are predicted universe-spanning “cracks” formed when quantum fields froze into a new vacuum state after the Big Bang—an imperfect...
The Strange Universe of Gravitational Lensing
Gravitational lensing turns the universe into a cosmic funhouse mirror: curved spacetime bends light, so distant objects appear magnified, shifted,...
JWST Discovered The Farthest Star Ever Seen!
A single star—named Earendel—has been spotted at an extraordinary distance of about 28 billion light-years away, made visible only because its light...
No Dark Matter = Proof of Dark Matter?
Dark matter may be real after all—not because a particle has been detected, but because some galaxies appear to contain little or none of it,...
Is Our Model of Dark Energy WRONG? | New 4.2σ Results
Cosmology is circling a major possibility: dark energy may not be constant. Results from the Dark Energy Spectroscopic Instrument (DESI) have pushed...
Using Stars to See Gravitational Waves
Gravitational-wave astronomy is entering a “golden age,” but the biggest story right now isn’t just more detections—it’s how those signals are...
2021 End of Year AMA!
The AMA’s biggest through-line is a push to treat quantum and astrophysics questions as solvable puzzles—then admit where the answers are still...