lakes

Curiosity rover finds evidence of Mars' ancient salty lakes

Since it landed on Mars in 2012 NASA's Curiosity rover has been exploring Gale Crater, a vast, dry ancient lake bed with a mountain at its center. Now, Curiosity has found sediments containing sulfate salt in the crater, which suggest it once held salty lakes.

Skier Mikaela Shiffrin clinches historic win

She made her name as a slalom specialist but Mikaela Shiffrin won an historic super-G at Lake Louise Sunday to become the first skier to win races in all six World Cup disciplines.