Jackson Ryan was CNET's science editor, and a multiple award-winning one at that. Earlier, he'd been a scientist, but he realized he wasn't very happy sitting at a lab bench all day. Science writing, ...

When it comes to speed limits, the ultimate one set by the laws of physics themselves is the speed of light. As Albert Einstein first realized, everyone looking at a light ray sees that it appears to ...

The tachyon particle has an almost mythical air about it in the scientific community, mostly because we don’t know if it actually exists. But if it does, the tachyon has some tantalizing connections ...