![SA Space & Physics Vol 3 Issue 6](https://static.scientificamerican.com/sciam/cache/file/1A5B4A9F-47DD-453D-91216557145BAAD6_source.jpg?w=300)
Volume 3, Issue 6
You are currently logged out. Please sign in to download the issue PDF.
Features
Do We Live in a Simulation? Chances Are about 50–50
Gauging whether or not we dwell inside someone else’s computer may come down to advanced AI research—or measurements at the frontiers of cosmology
Nobel Prize Work Took Black Holes from Fantasy to Fact
Over the past century, the existence of these invisible cosmic bodies has become unmistakable
Venus Might Host Life, New Discovery Suggests
The unexpected atmospheric detection of phosphine, a smelly gas made by microbes on Earth, could spark a revolution in astrobiology