Cosmology
At Closer to Truth: Is the universe fine-tuned for life and mind? Well-known scientists respond
Avi Loeb suggests that the design of life might have been a black hole. Michael Egnor responds
Closer to Truth: Are there really extra dimensions?
Rob Sheldon on the recent dark matter claims
Researchers: Less dark matter than thought?
Reality is looming down on supersymmetry
Breakthrough in measuring protons does not deliver the hoped-for new physics
Researchers: Black holes are collapsed universes
There is more than one kind of dark energy?
Jonathan Bartlett on what’s wrong with claims that we live in a sim universe
Peter Woit, whom we sometimes follow because he is fun, looks back on string theory
Will black holes really break physics?
What we don’t know about the universe, according to New Scientist
Back to Georges Lemaitre, a Catholic priest: A CENTURY ago, if you asked a cosmologist the universe’s age, the answer may well have been “infinite”. It was a neat way to sidestep the question of how it formed, and the idea had been enshrined in 1917 when Albert Einstein presented his model of a static universe through his general theory of relativity. General relativity describes gravity, the force that sculpts the universe, as the result of mass warping its fabric, space-time. In the mid-1920s, astrophysicist George Lemaître showed that according to the theory, the universe wasn’t static but expanding– and would thus have been smaller in the past. Stuart Clark, “Everything we know about the universe – and a few Read More ›