The quest to find the ultimate building blocks of nature is one of the oldest in all of physics. While we are far from knowing the answer to that question, one intriguing proposed answer is that all matter is composed of tiny "strings." The known particles are simply different vibrational patterns of these strings. In this video, Fermilab's Dr. Don Lincoln explains this idea, using interesting and accessible examples of real-world vibrations.
Astronomy & Space
Astronomy may well be the oldest science of all, seeking answers to questions such as: "Where did it all come from?" and "Are we alone?" But, today's astronomers are focusing on phenomena our forbearers never imagined—planets orbiting other stars, for example; black holes the size of our solar system; galaxies being driven apart by invisible "dark energy"; ripples in the fabric of space and time; and of course the big bang, where time itself began.
In this episode, Jordan and Charlie chat about the island rule, how spiral galaxies get their shape and the small brains in social wasps.
After spending years searching for ancient, buried ice elsewhere on planet earth, geologists turn their eyes to Mars, applying their Antarctic field techniques to search for ice buried beneath the Martian surface.
To detect dark matter called Weakly Interacting Massive Particles, or WIMPs, you have to go a long way - down!
Members of the Dark Energy Survey collaboration explain what they hope to learn by studying the southern sky with the world's most advanced digital camera, mounted on a telescope in Chile.
Findings by the Kepler telescope, which NASA launched into space in 2009, have led University of California, Berkeley, astronomers to estimate that in our Milky Way galaxy alone there are 40 billion planets similar to Earth, both in size and temperature. Now scientists are trying to figure out which of these exoplanets might have water, the basic ingredient of life.
The laws of quantum mechanics and relativity are quite perplexing. However, it is when the two theories are merged that things get really confusing. This combined theory predicts that empty space isn't empty at all - it's a seething and bubbling cauldron of matter and antimatter particles springing into existence before disappearing back into nothingness. Scientists call this complicated state of affairs "quantum foam." In this video, Fermilab's Don Lincoln discusses this mind-bending idea and sketches some of the experiments that have convinced scientists that this crazy prediction is actually true.
Carl Sagan's statement that there are "billions and billions" of stars in the cosmos gives an idea of just how much "stuff" there is in the universe. However scientists now believe that in addition to the type of matter with which we are familiar, there is another kind of matter out there. This new kind of matter is called "dark matter" and there seems to be five times as much as ordinary matter. Dark matter interacts only with gravity, therefore light simply zips right by it. Fermilab's Don Lincoln tells us why we think this seemingly-crazy idea might not be so crazy after all.
The launch of SPIDER on a 34Heavy balloon. The launch took place at 16:59 local time (03:59 GMT).
In this video, Fermilab's Don Lincoln tells about the big bang theory and sketches some speculative ideas about what caused the universe to come into existence.
This is a physically accurate gravitational lensing visualization of the last few orbits of a binary black hole merger. The camera is above the orbital plane of the merger, looking down.
Over a cup of coffee, astrophysicist Dan Evans chats about black holes, his research and what's on the horizon.
The deputy physics coordinator for CERN's CMS experiment Darin Acosta explains what we know about the Higgs boson and what remains to be discovered. NSF funds the CMS (Compact Muon Solenoid) experiment, which is investigating a wide range of physics, including the search for the Higgs boson, extra dimensions, and particles that could make up dark matter.
NRAO Director Tony Beasley discusses the impact of ALMA's new high resolution observations of HL Tau.
The National Science Foundation-funded National Radio Astronomy Observatory expands on a news release related to Atacama Large Millimeter/submillimeter Array's (ALMA) high-resolution capabilities.
NSF-funded BICEP2 collaborators confirm cosmic inflation, a cataclysmic event that followed a fraction of a second after the Big Bang
A team of scientists analyzed the chemical elements in the faintest known galaxy and determined that it is effectively a fossil galaxy left over from the early universe.
How do you detect planets that are hundreds of light years away?
A conversation with Daniel Whiteson and Jonathan Feng
Accelerators can probe artwork's origins