An accessible look at the cosmological constant, why Einstein introduced it, and how it later became central to our ...

Einstein’s claim that the speed of light is constant has survived more than a century of scrutiny—but scientists are still ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London. Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and ...

In early July, astronomers spotted a mysterious object, later dubbed 3I/ATLAS after it was confirmed to be the third-ever interstellar visitor cruising through our solar system. Last week, the object, ...

Ten years after scientists first detected gravitational waves emerging from two colliding black holes, the LIGO-Virgo-KAGRA collaboration, a research team that includes Columbia astronomy professor ...

Simon Stevenson receives funding from the Australian Research Council. He works for Swinburne University of Technology. He is a member of OzGrav and the LIGO Scientific collaboration. Ten years ago, ...

Stephen Hawking’s 50-year-old theorem on how black holes merge together has been successfully tested thanks to huge advances in gravitational wave astronomy, which helped astronomers catch the waves ...

In 2015, a piece of equipment at an observatory in the US moved one quintillionth (10-18) of a meter. This tiny movement was the first recorded event of gravitational waves. And it helped confirm ...

A previous calculation of Newton's gravitational coupling constant G is generalized. This generalization makes it possible to have "atoms of two-dimensional space" with an integer dimension d_{atom} ...