Stephen Hawking’s last paper has been published on multiverse theory

The last paper Stephen Hawking wrote before he died has now been published in the Journal of High Energy Physics. Though some version of the paper has been available on the preprint site arXiv since last year, it was submitted to the journal for revi...

Astronomers just measured a whole lot more than gravitational waves

A couple of weeks ago, the LIGO (Laser Interferometer Gravitational-Wave Observatory) and Virgo teams announced the detection of another set of gravitational waves -- the fourth since LIGO's first detection in September of 2015. The observations of t...

Researchers have increased atomic clock precision yet again

Researchers have pushed the precision and stability of atomic clocks to increasingly greater levels over the last few years. A big advancement was the introduction of optical lattices, lasers which essentially quarantine individual atoms and boost ac...

Researchers have increased atomic clock precision yet again

Researchers have pushed the precision and stability of atomic clocks to increasingly greater levels over the last few years. A big advancement was the introduction of optical lattices, lasers which essentially quarantine individual atoms and boost ac...