For more than half a century, rockets have been humanity’s ticket to space. They carried astronauts to the Moon, launched probes to the outer planets, and continue to power missions toward Mars. But ...

Compact sensor-packed probes, propelled by laser- or Sun-powered sails, could be humanity's first scouts to another star system. Reading time 4 minutes The recent confirmation of an atmosphere around ...

Eventually, we'll launch a mission dedicated solely to studying an interstellar object. When that day comes, which one should we look at first? Reading time 8 minutes With all we’re finding out about ...