China has fired a precision laser across 80,778 miles (130,000 km) of space in broad daylight, bounced it off a satellite circling the Moon, and measured the return, marking the world’s first ...

Discover interesting facts about how the moon formed, what it's made out of, and the many missions humans have launched to ...

Abstract: The maintenance of the nominal multirevolution elliptic halo orbit, whose special features can benefit mercurial explorations, is first investigated through Monte-Carlo simulations in the ...