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01/31/18
AAS NOVA

A nine-year hunt for neutrinos

How do we hunt for elusive neutrinos emitted by distant astrophysical sources? Submerge a huge observatory under ice or water … and then wait patiently.

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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. 

05/01/05

Frolicking bison

As spring arrived, so did the kids. Their knees wobbly and eyes wide open, they stayed close to their moms. Dad, weighing more than 2500 pounds, made sure that no harm came the babies' way.

Illustration of two flautists
05/01/05

Neutrino mixing

Waves describe some of the most extraordinary phenomena in the world. Waves can be simple—the sound of a flute playing a sustained, single note—or they can be complicated mixtures—a musical chord, for example, which is a combination of many sound waves.

05/01/05

Breathing accelerator

As the sun rises each day, warming the grounds and buildings of the Stanford Linear Accelerator Center, the entire SPEAR3 synchrotron facility expands in response.

05/01/05

The elusive neutrino

Not only are neutrinos hard to catch, but they also change form as they travel through space. New experiments hope to understand their chameleonic nature.

05/01/05

Searching for the neutrino's identity

Neutrinos are like no other particle in the universe. The more we learn about these "little neutral ones," the less we seem to understand them. Physicists do not even yet know what type of particle the neutrino is.

05/01/05

Springtime at Daresbury

How a quiet, unassuming laboratory in the northwest of England transformed itself into a powerhouse of accelerator physics and technology.

05/01/05

Chris Henschke: HyperCollider

In 1905, Albert Einstein published his Special Theory of Relativity and overthrew the notions of absolute space and time. His later General Theory of Relativity was so revolutionary that even he had trouble accepting its full implications.

Logbook of April 2005
04/01/05

Distant quasar

On the night of April 27, 2002, the Apache Point 3.5 m telescope in New Mexico captured the light signature of SDSS 1148+5251, the most distant quasar known. A quasar is a compact, ultraluminous object thought to be powered by material falling into a giant black hole.

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