For more than half a century, tiny tubes of gray lunar dirt scooped up by Apollo astronauts have been sitting in NASA vaults.

Scientists trying to work out whether a star exploded and the resulting debris crashed into Earth 10 million years ago may be one step closer to solving the mystery. They discovered an unusual amount ...

A team of nuclear physicists has pulled off something that, until recently, existed only in theoretical models and the violent surfaces of collapsed stars: they recreated a thermonuclear reaction ...