A joint Fermilab/SLAC publication

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08/01/07

Non-dark energy

With regard to your story on dark energy (May 2007): Please explain the amount of known energy there is in the universe.

08/01/07

Particle sudoku: Solution

Did you find last month's sudoku tough? Word from our readers is that the puzzle in the Jun/Jul 07 issue of symmetry was much more difficult than a regular sudoku.

08/01/07

Contest: Where has your symmetry been?

Our readers live in all parts of the globe, from Alaska to Wyoming; from Argentina to Zimbabwe. But when a copy of symmetry lands in a mailbox, that's often not the end of its journey.

08/01/07

Andrew Lankford: Fermilab steering group

When Fermilab Director Pier Oddone asked me to join a group to consider possible intermediate-term accelerator-based physics opportunities at Fermilab in case construction of the International Line

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Conceptual illustration

Muons: Emblems of discovery

01/13/26
Diana Kwon

Once a surprise to physicists, these particles are useful tools inside and outside the realm of particle physics.