The theory of the Big Bang describes the biggest event of all time — the origin of the universe itself. Scientists are confident that this theory accurately describes the life story of the universe over its 14-billion-year history. However, scientists like to check and recheck their work, and they have found a discrepancy in two measurements of how fast the universe is expanding. This discrepancy could mean the need to add another twist in the story, or it could disappear with more study. In this video, Fermilab scientist Don Lincoln helps us sort it all out.

“Why there is something, rather than nothing?” is a timeless question in both science and philosophy. In this video, Fermilab scientist Don Lincoln explains the theory of leptogenesis, which might be the answer. The international Deep Underground Neutrino Experiment, hosted by Fermilab, will test this idea.

Fermilab scientist Anne Norrick works on the NOvA experiment, looking for hard-to-catch particles called neutrinos. As run coordinator, she helps make sure that NOvA runs smoothly and the particle detectors are in top-top shape. When she isn’t writing code for the experiment or leading tours of the lab’s facilities, she’s having fun playing music, running, reading and traveling.

To celebrate the 150th anniversary of the periodic table, the UN General Assembly and UNESCO have declared 2019 the International Year of the Periodic Table. Fermilab gathered a group of scientists to discuss the importance of the periodic table of the elements in their daily lives, to science, and to humankind.

The size and age of the universe seem to not agree with one another. Astronomers have determined that the universe is nearly 14 billion years old, and yet its diameter is 92 billion light-years across. How can both of those numbers possibly be true? In this 10-minute video, Fermilab scientist Don Lincoln tells you how.

Aaron Sauers is a bridge between Fermilab and industry. As Fermilab’s patent and licensing executive, he works with the lab’s inventors to find ways that their innovations can help tackle problems and improve our everyday lives. By exploring areas of common interest between the lab and private companies, universities and other labs, he identifies R&D that benefits everyone. For Sauers, finding new uses for lab-developed technologies is the fun puzzle he gets to solve.

The elusive neutrino is the most difficult to detect of the particles of the Standard Model. The story is more complex than that. When a neutrino actually interacts, it is easy to detect. At the same time, they interact only rarely. In this 10-minute video, Fermilab scientist Don Lincoln discusses the trials and tribulations of neutrino hunters.

Meet Harry Ferguson, who has a long history at Fermilab and now runs the Remote Operations Center – West. This room is the central control hub for the lab’s neutrino experiments and sees about 10,000 visitors every year. Ferguson likes the international nature of the lab and the opportunities to stretch and try new things.

The motion of light depends crucially on the material in which it is traveling. When light passes from one medium to another, an unexpected thing happens: The direction of travel changes. There are many explanations out there for why this happens, and many of those explanations are wrong. In this 14-minute video, Fermilab scientist Don Lincoln explains the reason.

In this 2-minute video, electrical engineer Luciano Elementi and company show us how superconducting cable is wrapped for the Mu2e experiment. Mu2e will search for a previously undiscovered process: a muon converting solely into an electron. The cables will help power the experiment when it comes online.