A 16th-century brass-and-silver doohickey that had been missing for a decade turned up in the hands of an Italian collector, who stepped forward to return it. The whatchamacallit is to be returned to the museum in a ceremony Wednesday.
Its days looking for Earth-like planets may be over (though it will take years to analyze its data backlog), but NASA's Kepler craft still could have a future. Next up: a reassessment of its abilities.
The star collections known as galaxies formed much sooner in the early universe than previously estimated, according to an analysis of data from the Hubble Space Telescope. Galaxies were well established within 2.5 billion years of the big bang.
Like terrestrial storms, solar storms trigger effects that range from beautiful to annoying to dangerous. But what causes them? Here we explain four different kinds of solar outbursts that can impact us here on Earth.