Space debris is a growing threat to satellites and missions, with over 14,000 pieces already cluttering low-Earth orbit. To address this, Kazunori Takahashi, a researcher at Tohoku University in Japan ...

With a modest amount of thrust and power, a new ion engine system could get rid of 1-ton pieces of space junk in less than 100 days. Here's how it works.

Researchers now have a clearer picture of the chemical mechanisms underlying lithium-ion batteries—and it could lead to ...