Bob Milgrim’s daughter Sarah was killed leaving an event at the Capital Jewish Museum. Now, he marvels at how much she taught him.

NASA satellite emits 'spark' decades after going dormant: Astronomers think they know why Source of the radio waves was tracked to a location that matches that of NASA’s defunct Relay 2 ...

A mysterious and powerful blast of radio waves detected last year, suspected to originate far beyond the Milky Way came from a long-dead NASA spacecraft in Earth's orbit.

So Clancy James at Curtin University in Australia and his colleagues were perplexed when, nearly 60 years later, they detected a brief, powerful burst of radio waves coming from the satellite’s ...