Trying to work out what dark energy really is (or if it even exists) requires accurate measurements, particularly of the rate at which the universe is expanding.
Science fair season is here, so we at symmetry were not surprised when 12-year-old Austin Ellsworth of Spring, Texas, called with a few questions about his science fair project.
Take one part unidentified goop. Add three parts mysterious energy. Throw in a dash of ordinary atoms. Mix. Compress. Explode. Let expand for 13.7 billion years.
Fermilab physicist Darren Crawford shares a birthdate, May 25, with the first Star Wars movie release. Now he is making his own mark on the fabled sci-fi fantasy series.
People went to great lengths, traveling almost 9000 kilometers over more than 60 days, to deliver an essential, 200-ton component of the KATRIN neutrino experiment.