How to use gravitational waves to test if Einstein was right
The quest for the true nature of gravity continues! Can gravitational waves help us find the right answer? Today’s paper describes how this could work.
Catching Slippery Gravity with Fast Radio Bursts
Why is the Universe’s expansion accelerating? We have no idea! But, maybe fast radio bursts can provide some clues.
A cosmic footrace: testing the speed(s) of light with FRBs
General relativity has stood the test of time for over a century. How can we continue to stress-test it using fast radio bursts? Today’s paper does just that!
From Dust Bunnies to Black Holes: Oppenheimer-Snyder Collapse
In this summary of a classic paper from 1939, we look back at the very first theory of black hole formation: Oppenheimer and Snyder’s model of a spherically collapsing ball of dust.
Galaxies In More Crowded Environments Rotate Slower: Implications For Gravity
Was Einstein right that experiments behave the same in deep space as in an elevator freely falling on Earth, or does the gravity in the latter case matter? Find out about an observational test in today’s guest post by Indranil Banik.
Warp Drives!
The speed of light is just a number!