Science

Photos: Total eclipse of the supermoon
Skygazers around the world got outside and looked upward Sunday night as the once-in-a-generation total supermoon eclipse took over the skies. The next one won't happen until 2033.
Scientists confirm water flowing on Mars
The streaks on the Red Planet's surface appear to be caused by salty water. But how much water there is -- and where it comes from -- remains a mystery.
NASA supervillain, nuclear history and a lost phone: Your weekend reading list
This weekend hear from a NASA scientist mistaken for a supervillain, explore a bit of nuclear history, meet a gaming grandmother and follow a curious trail of a cellphone into familiarity.
Sunday's lunar eclipse has it all
The total lunar eclipse, visible in the U.S. Sunday night, is the first since 1982 that's also a supermoon as well as a blood moon.
U.N. dreams big: 17 huge new goals to build a better world
And there are just 15 years to accomplish them. Here's a rundown of the 17 aims, which include ending poverty, hunger and AIDS, fixing the environment and giving everyone access to green space.
Postcard from Minneapolis: Why nonstop travel in personal pods has yet to take off
Personal rapid transit was supposed to be the future of public transport: lightweight pods on elevated tracks, on-demand destinations. But funding issues mean cities are reluctant to change course.
A recent Pew study shows that teenagers are building significant friendships online, and that their online social networks are leading to happier and more connected lives — an idea that flies in the face of conventional wisdom regarding teens and technology.