Access
This article is part of Nature's premium content.
Published online 16 October 2003 | Nature | doi:10.1038/news031013-10
News
Detection rescues cause and effect
Information does not really travel faster than light.
A team of US physicists has struck a blow for common sense: they have shown that an effect cannot precede its cause1.
The experiments confirm that recent work in which light appeared to travel faster than its speed in a vacuum does not conflict with the notion of causality, in which effects follow their causes.
To read this story in full you will need to login or make a payment (see right).
Comments
Reader comments are usually moderated after posting. If you find something offensive or inappropriate, you can speed this process by clicking 'Report this comment' (or, if that doesn't work for you, email webadmin@nature.com). For more controversial topics, we reserve the right to moderate before comments are published.
There are currently no comments.
