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Posts Tagged "neutrinos"

Basic Space

Missed opportunities: cloudy transits, not-so-fast neutrinos and a spare Hubble or two

The International Space Station had no cloud issues. Credit: NASA

I woke up early on Wednesday morning, half feeling like a kid on Christmas morning, half feeling like I’d rather just stay in bed. While most people in the UK were sound asleep, amateur and professional astronomers alike got up before dawn to witness an astronomical spectacle that won’t happen again until the year 2117: [...]

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Basic Space

Supernova turns inside out and kicks neutron star

Astronomers have taken a fresh look at an old supernova and found that it was turned inside out during its explosion. Iron, which forms during the stars death, is usually in the centre of the supernova remnant. But in Cassiopeia A they found it on the outside instead. This analysis has also shed some light [...]

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Basic Space

Faster-than-light neutrinos expose the inner workings of science

It looks like the faster-than-light neutrino saga – or should that now be slower-than-light or the-same-speed-as-light? – may nearly be over. On Friday, CERN updated their statement on the initial OPERA result with some new results from ICARUS, another experiment at the Gran Sasso laboratory in Italy. Here are the important bits of the statement: [...]

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Basic Space

Faster-than-light neutrinos explained?

The faster-than-light neutrinos seen by the OPERA particle physics experiment last year may have just been explained. By a loose cable. I wish I was joking. To back up a little, the OPERA collaboration based at the Gran Sasso laboratory underneath the mountain of the same name in Italy published a paper to pre-print server [...]

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Basic Space

Faster-than-light neutrinos: a timeline

2011 has been a busy year for particle physicists. They’ve found a new particle, closed in on the elusive Higgs boson, and witnessed some neutrinos acting pretty strangely, amongst other things. I’m talking, of course, about the faster than light neutrinos detected by the Opera experiment in Italy. They dominated the science headlines for a [...]

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Basic Space

Faster-than-light neutrinos show science in action

Gran Sasso mountain sits on top of both the OPERA and ICARUS experiments. Credit: {link url="http://commons.wikimedia.org/wiki/File:Gran_sasso_italia.jpg"}Wikipedia/w:nl:Gebruiker:Idéfix{/link}

Unless you’ve been hiding under a rock for the past 24 hours, you’ve probably heard about the neutrinos that turned up at the Gran Sasso Laboratory in Italy a few nanoseconds earlier than they were supposed to, in a feat that would have required them to travel faster than the speed of light. The story [...]

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Life, Unbounded

Superluminal Neutrino Result Caused by Faulty Connection?

A data transmission problem? (Wikipedia/BigRiz)

Although still awaiting full confirmation, a breaking news report in Science (and Nature, see below) indicates that the measurement of an apparently faster-than-light travel time for muon-neutrinos generated at CERN and detected at the Gran Sasso laboratory – which hit the world headlines back in September 2011 – may have been due to a problematic [...]

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Life, Unbounded

What next for neutrinos?

To catch a neutrino (MINOS)

For a ghostly type of particle, oblivious to even the massive bulk of a star or planet, neutrinos sure can generate a fuss. In the 1960s they created a stir by seemingly appearing from nuclear processes in our Sun’s core at a third of the anticipated rate – the so-called solar neutrino “problem“. In the [...]

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Life, Unbounded

Superluminal muon-neutrinos? Don’t get your hopes up.

Ghosts in the aether (CERN)

The past 24 hours have suddenly been awash in neutrinos, in addition to the 65 billion passing through every square centimeter of your skin every second from the Sun’s core. Although hardly the stuff of planetary science or astrobiology I have found myself facing questions from a few people who wonder if faster-than-light particles could [...]

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Observations

Scientists Find First Neutrinos from Distant Space [Video]

IceCube

The world has heard the first faint whispers of the most powerful cataclysms in the universe. Scientists working on the IceCube experiment in Antarctica report that they have found 28 neutrinos that must have come to earth from explosions in the distant universe—the first time scientists have found neutrinos coming from outside our own solar [...]

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Observations

5 Unanswered Questions That Will Keep Physicists Awake at Night

Orion Nebula photo

Physics is all about probing the most fundamental mysteries in nature, so it’s no surprise that physicists have some very basic questions about the universe on their minds. Recently, Symmetry Magazine (published by two U.S.-government funded physics labs) asked a group of particle physicists to name the open questions in physics they most want answers [...]

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Observations

Not So Fast: Independent Measurement Shows Neutrinos Don’t Exceed Speed of Light

CNGS-neutrinos

Albert may still be right. An attempt to repeat an experiment that showed a subatomic particle traveling faster than the speed of light suggests that the earlier result may have erred, and that Einstein’s famed special theory of relativity remains intact. A mostly European collaboration of physicists working on an experiment called ICARUS announced today [...]

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Observations

Message Encoded in Neutrino Beam Transmitted through Solid Rock

neutrino-detector

Neutrinos are having a moment. They’re speeding across Europe (just how fast is under review), they’re changing flavors in China and, now, they’re carrying rudimentary messages through bedrock in Illinois. A team of physicists encoded a short string of letters on a beam of neutrinos at Fermi National Accelerator Laboratory in Batavia, Ill., and sent [...]

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Observations

Could GPS Problems Explain Seemingly Faster-Than-Light Neutrinos?

One of the biggest stories in science last year was the announcement by a European physics collaboration that neutrinos can seemingly travel faster than light. Most physicists were skeptical of the result, which would upend a well-tested tenet of modern physics—namely, that nothing outpaces light. And the researchers on the OPERA experiment that made the [...]

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Observations

Life after Tevatron: Fermilab Still Kicking Even Though It Is No Longer Top Gun

Fermilab is dead. Long live Fermilab! The Tevatron at the Fermi National Accelerator Laboratory in Batavia, Ill., which had been the top U.S. particle collider—and for many years the most powerful such machine in the world—shut down last September. The collider’s physics breakthroughs, including the 1995 discovery of the top quark, were so eminent that [...]

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