Observational studies, rather than randomized control trial counterparts, are most likely to receive coverage in major news outlets, according to research in PLOS One. Observational studies more often ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

The universe suddenly looks a lot more crowded, thanks to a deep-sky census assembled from surveys taken by NASA’s Hubble Space Telescope and other observatories. Astronomers came to the surprising ...

This article is a supplement to the feature "The Cosmic Origin of Time Arrow: Does Time Run Backward in Other Universes?" from the June 2008 issue of Scientific American. Here is a timeline of ...

Re: the August 29 article "Face of 'Lucy' ancestor revealed by fossil discovery in Ethiopia." This article claims that a fossil from Ethiopia is "letting scientists look millions of years into our ...