A climber rests as he waits for the skin on his hands to heal halfway up the "toughest climb in the world". Americans Tommy Caldwell and Kevin Jorgeson make their way up the sheer 3,000 food monolith El Capitan in California's Yosemite National Park for two weeks with no safety equipment bar robes in case they fall. In this picture the two are over the most difficult part of their route and hang above the ground at a distance well above the height of Europe's tallest building - London's Shard.Launch Slideshow 7 PHOTOS
Tarek Alghorani spent seven years in jail for mocking Assad’s regime. Now living in Tunisia, his new target is ISIS.
The Android phone built on face-tracking technology is due out in March; a tablet will follow in June.
"Few things effectively communicate the power we've built in fighting dark money & anti-worker policies like billionaire-funded groups blowing tons of cash on wack billboards," said New York Representative Alexandria Ocasio-Cortez.
“North Korea’s diplomacy has taken an unprecedented tactical course, which is tailor-made for Trump,” warned Thae Yong Ho, a former North Korean deputy ambassador to Britain who defected in 2016.
Disproportionate media coverage encourages Americans to fear the "Muslim terrorist" and ignore other threats, researchers warned.
The Vermont senator faces competition from high-profile Democrats, including Cory Booker and Elizabeth Warren.
President Donald Trump's space force could "increase the likelihood of conflict" in outer space, warned Laura Grego, a senior scientist with the Union of Concerned Scientists.
Rosen will replace Rod Rosenstein, who has been attacked recently by the president over claims of a secret taping plot.
Even Charles Darwin and Alfred Russel Wallace discussed the unusual black and white pattern of zebras.
Study adds to growing evidence that blood cells play a role in cognitive decline—but human implications are still a long way off.