As an asteroid mining start-up's latest mission goes awry, Josh Sims looks at how close we really are to extracting rare minerals from the many celestial bodies above us.

YR4, which orbits the sun every four years and periodically crosses Earth's orbit. The nature of its orbit makes it a potentially hazardous object (PHO), meaning it could pose a collision risk to ...

In November 2014, while he was in Japan, the country launched the Hayabusa II, an asteroid mining mission ... He and his team also participated in a Japan Aerospace Exploration Agency (JAXA) ...