general relativity

Cosmic Certainties 19 September 2016

More trouble with string theory, an attempt to do away with inflation, and a novel theory of dark matter, critiqued.
A review of “Fashion, Faith and Fantasy in the New Physics of the Universe” by Roger Penrose.
[Wall Street Journal]

How High the Moon? 4 October 2013

Book Review: ‘Dreams of Other Worlds’ by Chris Impey and Holly Henry
Where the Milky Way’s missing arms went and other tales of astronomical discovery.
[Wall Street Journal]

Understanding gravity 21 August 2004

An invisible hand
A gravitational mystery affecting pendulums and satellites–could General Relativity be wrong?

General relativity 9 January 2003

Jupiter calling
Scientists have at last measured the speed of gravity. (This measurement is now controversial.)