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 ...

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

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 ...