Skip to Navigation
subscribe to Plus
Search this site:
Create new account
Request new password
Spaces are allowed; punctuation is not allowed except for periods, hyphens, and underscores.
A valid e-mail address. All e-mails from the system will be sent to this address. The e-mail address is not made public and will only be used if you wish to receive a new password or wish to receive certain news or notifications by e-mail.
verify using audio
Type the characters you see in the picture above; if you can't read them, submit the form and a new image will be generated. Not case sensitive.
Science fiction, science fact: reports from the frontiers of physics
What is time? What is space? Are there parallel universes? Join Plus and FQXi on a journey exploring these...
What Planck saw
Cosmologists gathered in the Netherlands last week to discuss a new view of the Universe. The Universe as...
Why you shouldn't use a toss for overtime
In soccer a coin toss is used to decide who goes first in a penalty shootout and similarly in American...
The Abel Prize 2013
This year's Abel Prize has been awarded to the Belgian mathematician Pierre Deligne for "seminal...
Make a difference to mathematics