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Star Mergers: A New Test of Gravity, Dark Energy Theories

Observations and measurements of a neutron star merger have largely ruled out some theories relating to gravity and dark energy, and challenged a large class of theories.

Creating a World of Make-Believe to Better Understand the Real Universe

Scientists are creating simulated universes – complete with dark matter mock-ups, computer-generated galaxies, quasi quasars, and pseudo supernovae – to better understand real-world observations.

How the Earth Stops High-Energy Neutrinos in Their Tracks

In an analysis of data from an experiment embedded in Antarctic ice, a research collaboration including scientists from Berkeley Lab has demonstrated that the Earth stops high-energy neutrinos – particles that only very rarely interact with matter.

A Flight Path to Physics Success

In a previous career with the U.S. Air Force, Sandra Miarecki flew high above the Earth’s surface. She retired from the Air Force in 2007 to pursue a new calling in physics that would set her sights on particles traveling into the depths of the Earth.

The Mystery of the Star That Wouldn’t Die

Berkeley Lab and UC Berkeley scientists were part of a team that helped to decipher one of the most bizarre spectacles ever seen in the night sky: A supernova that refused to stop shining, remaining bright far longer than an ordinary stellar explosion. What caused the event is puzzling.

Scientists Decode the Origin of Universe’s Heavy Elements in the Light from a Neutron Star Merger

On Aug. 17, scientists around the globe were treated to near-simultaneous observations by separate instruments that would ultimately be confirmed as the first measurement of the merger of two neutron stars and its explosive aftermath.

How Berkeley Lab Software Helped Lead to the 2017 Nobel Prize in Physics

The Nobel Prize in Physics was awarded to scientists in the LIGO Scientific Collaboration who discovered gravitational waves. Software tools developed by researchers at Berkeley Lab’s Computational Research Division played a key role in enabling the analysis of the vast quantities of data generated by LIGO.

Berkeley Lab Intern Focuses on Using Light for Spaceflight

Elliot Heywood had dreamed of landing an internship at the science lab in the hills not far from his school in Lafayette, California, but he never could have imagined this dream would take wing as a summerlong stint researching an ultrafast interplanetary propulsion system. In May, after a friend and fellow high school senior at

New Simulations Could Help in Hunt for Massive Mergers of Neutron Stars, Black Holes

Scientists at Berkeley Lab have developed new computer models to explore what happens when a black hole joins with a neutron star – the superdense remnant of an exploded star.

Dark Matter Day Is Approaching … but Don’t Be Afraid of the Dark

A global hunt for the universe’s missing matter is underway, and this autumn everyone is invited to join in. On and around October 31, 2017, events around the world will celebrate the hunt for the universe’s unseen “dark matter.”