Scientists shave estimate of neutrino's mass in half

An international team of scientists, including researchers at MIT, has come closer to pinning down the mass of the elusive neutrino. These ghost-like particles permeate the universe and yet are thought to be nearly massless, ...

Experiments shine light on exotic cosmic rays

The Earth is under constant bombardment by subatomic particles called cosmic rays, including some, known as ultra-high-energy cosmic rays, which pack much more punch than the world's most powerful particle accelerators. Fortunately, ...

NASA celebrates 25 years of breakthrough gamma-ray science

Twenty-five years ago this week, NASA launched the Compton Gamma Ray Observatory, an astronomical satellite that transformed our knowledge of the high-energy sky. Over its nine-year lifetime, Compton produced the first-ever ...

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