Light sails can propel spacecraft using the energy of the Sun. Credit: NASA/Aero Animation/Ben Schweighart Tiny spacecraft riding beams of light could put humanity within reach of another star system ...

The Trump administration abruptly declined to renew a contract for a cybersecurity firm it hired to examine voting equipment in Puerto Rico after the company didn’t echo administration officials’ ...

For the quickest way to join, enter your email below. We’ll send a confirmation email and sign you up to Space.com newsletters with the latest inspiration, expert advice and exclusive offers.