A decade ago, scientists at the European Space Agency (ESA) had just wrapped up the yearslong process of building a comet-chasing spacecraft named after the Rosetta Stone, the key to deciphering ...

Stellar Stories Hera spacecraft launched The European Space Agency's Hxera spacecraft launched on October 7, initiating an ...

Two meteor showers, both streams of debris from the same massive object that broke apart 20,000 years ago, are happening at ...

Set your calendars on Nov. 18 (probably) for the Leonids meteor shower in the peak morning. You don't need a telescope to ...