China launches robot prototype capable of catching space debris with net

Probing deep space with Interstellar - a spacecraft that will travel much deeper into interstellar space.

Physicists net neutron star gold from measurement of lead

As Voyagers 1 and 2 continue their epic journeys through interstellar space, they're resolving past controversies and even helping to spark a new one: the true shape of the sun's heliosphere.