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Big Bang Theory
How do physicists solve a problem like entropy?
Once the initial blaze of heat dissipated, the constituent particles of atoms were free to bind.
Finding out how the Universe grew up was the biggest science goal of JWST. This ultra-early proto-galaxy cluster is one amazing discovery.
What would become the Big Bang model started from a crucial idea: that the young Universe was denser and hotter.
With infrared capabilities and image sharpness far beyond Hubble's limits, JWST looked at Hubble's deepest field, revealing so much more.
For many years, some cosmologists embraced the idea of an eternal, steady state universe. But science triumphed over philosophical prejudice.
Einstein called his idea "abominable," but the world of physics came around to embracing the views of Georges Lemaître.
Leading a scientific revolution is easy: you just have to succeed where the current theory fails while equaling its successes. Good luck!
With a finite 13.8 billion years having passed since the Big Bang, there's an edge to what we can see: the cosmic horizon. What's it like?
If the evolution of the Universe is a movie, what happens when we rewind it all the way backward?
Many galaxies really are ultra-distant, but some are just intrinsically red or dusty. Only with spectroscopy can JWST tell which is which.
2023 is an exciting time for the study of quark-gluon plasmas.
When supermassive black holes merge, they emit more energy than anything else to occur in our Universe except the Big Bang.
If you're a massless particle, you must always move at light speed. If you have mass, you must go slower. So why aren't any neutrinos slow?
Dark energy is one of the biggest mysteries in all the Universe. Is there some way to avoid "having to live with it?"
Nobel Laureate Roger Penrose, famed for his work on black holes, claims we've seen evidence from a prior Universe. Only, we haven't.
From the Big Bang to dark energy, knowledge of the cosmos has sped up in the past century — but big questions linger.
It is a story with nebulous beginnings and no discernible end.
Generations ago, cosmologists asserted that the Universe might not just be the same in all directions, but at all times. But is that true?
A fascinating 90 minute podcast between Dr. Ivanna Escala and Ethan Siegel on Starts With A Bang!
From the earliest stages of the hot Big Bang (and even before) to our dark energy-dominated present, how and when did the Universe grow up?
In general relativity, white holes are just as mathematically plausible as black holes. Black holes are real; what about white holes?
Many people out there, including scientists, claim to have discovered a series of game-changing revolutions. Here's why we don't buy it.
The Universe isn't as "clumpy" as we think it should be.
The Universe certainly formed stars, at one point, for the very first time. But we haven't found them yet. Here's what everyone should know.
The information we have in the Universe is finite and limited, but our curiosity and wonder is forever insatiable. And always will be.
JWST has seen more distant galaxies than any other observatory, ever. But many candidates for "most distant of all" are likely impostors.
As time goes on, dark energy makes distant galaxies recede from us ever faster in our expanding Universe. But nothing truly disappears.
All the things that surround and compose us didn't always exist. But describing their origin depends on what 'nothing' means.