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- A Response to “On the time lags of the LIGO signals” (Guest Post)
- Congratulations to Grant and Jason!
- The Big Picture: Paperback Day
- Guest Post: Nathan Moynihan on Amplitudes for Astrophysicists
- Is Inflationary Cosmology Science?
- Marching for Science
- What Happened at the Big Bang?
- Memory-Driven Computing and The Machine
The Big Picture: On the Origins of Life, Meaning, and the Universe Itself The Particle at the End of the Universe: How the Hunt for the Higgs Boson Leads Us to the Edge of a New World From Eternity to Here: The Quest for the Ultimate Theory of Time Spacetime and Geometry: An Introduction to General Relativity The Higgs Boson and Beyond (The Great Courses) Mysteries of Modern Physics -- Time (The Great Courses) Dark Matter and Dark Energy (The Great Courses)
- All text copyright © Sean M. Carroll.
Category Archives: Guest Post
This is a special guest post by Ian Harry, postdoctoral physicist at the Max Planck Institute for Gravitational Physics, Potsdam-Golm. You may have seen stories about a paper that recently appeared, which called into question whether the LIGO gravitational-wave observatory … Continue reading
As someone who sits at Richard Feynman’s old desk, I take Feynman diagrams very seriously. They are a very convenient and powerful way of answering a certain kind of important physical question: given some set of particles coming together to … Continue reading
“Understanding quantum gravity” is on every physicist’s short list of Big Issues we would all like to know more about. If there’s been any lesson from last half-century of serious work on this problem, it’s that the answer is likely … Continue reading
The question of how information escapes from evaporating black holes has puzzled physicists for almost forty years now, and while we’ve learned a lot we still don’t seem close to an answer. Increasingly, people who care about such things have … Continue reading
Don Page is one of the world’s leading experts on theoretical gravitational physics and cosmology, as well as a previous guest-blogger around these parts. (There are more world experts in theoretical physics than there are people who have guest-blogged for … Continue reading
If you’re reading this you probably know about the BICEP2 experiment, a radio telescope at the South Pole that measured a particular polarization signal known as “B-modes” in the cosmic microwaves background radiation. Cosmologists were very excited at the prospect … Continue reading
I got to know Charles “Chip” Sebens back in 2012, when he emailed to ask if he could spend the summer at Caltech. Chip is a graduate student in the philosophy department at the University of Michigan, and like many … Continue reading
Usually I start guest posts by remarking on what a pleasure it is to host an article on the topic being discussed. Unfortunately this is a sadder occasion: protesting the unfair detention of Omid Kokabee, a physics graduate student at … Continue reading
Most readers will doubtless be familiar with Max Tegmark, the MIT cosmologist who successfully balances down-and-dirty data analysis of large-scale structure and the microwave background with more speculative big-picture ideas about quantum mechanics and the nature of reality. Max has … Continue reading