From Forbes, April 29, 2021: Don Lincoln discusses a possible model of dark matter called a WIMP, short for weakly interacting massive particle.
gravity
Despite featuring in sci-fi and many UFO reports, Antigravity is an idea that is potentially scientifically reputable, and scientists at CERN are investigating possible connections between antimatter and antigravity. Fermilab’s Dr. Don Lincoln covers both the fact and fiction of this interesting topic.
From Super Interessante, Jan. 31, 2021: A team of researchers from Fermilab and the National Observatory in Brazil used the light of solitary stars to calculate the mass of some of the largest structures in the cosmos — galaxy clusters. In addition to taking the most detailed measurement ever published of intracluster light, the team’s new method of measurement can help further investigate dark matter.
From University of Birmingham, Jan. 13, 2021: Fermilab will take part in an international collaboration, led by Cardiff University, on quantum-enhanced interferometry for new physics. The project’s four table-top experiments may help explore new parameter spaces of photon-dark matter interaction, and seek answers to the long-standing question at the heart of modern science: How can gravity be united with the other fundamental forces?
From University of Strathclyde-Glasgow, Jan. 13, 2021: Fermilab will take part in an international collaboration, led by Cardiff University, on quantum-enhanced interferometry for new physics. The project’s four table-top experiments may help explore new parameter spaces of photon-dark matter interaction, and seek answers to the long-standing question at the heart of modern science: How can gravity be united with the other fundamental forces?
From University of Glasgow, Jan. 13, 2021: Fermilab will take part in an international collaboration, led by Cardiff University, on quantum-enhanced interferometry for new physics. The project’s four table-top experiments may help explore new parameter spaces of photon-dark matter interaction, and seek answers to the long-standing question at the heart of modern science: How can gravity be united with the other fundamental forces?
Of the four known forces, one of them stands out as different. Gravity is much weaker than the other known forces, and nobody knows why. In this video, Fermilab scientist Don Lincoln describes one possible explanation for the weakness of gravity — the existence of extra dimensions of space.
From New Scientist, July 1, 2020: Fermilab theorist Gordan Krnjaic and Fermilab postdoc Daniel Carney of the University of Maryland are quoted in this article on efforts to sense its minuscule gravitational force as it brushes past us.
In recent years, scientists have found ways to study black holes, listening to the gravitational waves they unleash when they collide and even creating an image of one by combining information from radio telescopes around the world. But our knowledge of black holes remains limited. So scientists are figuring out how to make do with substitutes — analogs to black holes that may hold answers to mysteries about gravity and quantum mechanics.
Our best model of particle physics explains only about 5 percent of the universe.