HELSINKI — China will aim to alter the orbit of a potentially threatening asteroid with a kinetic impactor test as part of plans for a planetary defense system. China is drafting a planetary defense ...

If an asteroid is hurtling toward Earth, can humanity be saved not with a bang, but with a nudge? Subscribe to read this story ad-free Get unlimited access to ad-free articles and exclusive content.

The asteroid target has not yet been released. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Breaking space news, the latest updates on rocket ...