Tuesday marks the tenth anniversary of a huge astronomical milestone: the first and only time we have landed on a comet. The ...

Even if it's not intact, the 30-million-page backup of human history would be "the first archaeological ruins of early human attempts to build a library on the moon." The Rosetta Project Is ...

A decade ago, scientists at the European Space Agency (ESA) had just wrapped up the yearslong process of building a ...