NASA revealed Monday that it needs an additional $1.6 billion in funding for fiscal year 2020 to stay on track for a human return to the moon by 2024. The space agency's budget amendment comes in addition to the $21 billion the Trump administration asked Congress for in March. Ars Technica This story originally appeared on Ars Technica, a trusted source for technology news, tech policy analysis, reviews, and more. Ars is owned by WIRED's parent company, Condé Nast.

Learn about your ad choices: dovetail.prx.org/ad-choices