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Israel is just one of two teams left in a competition sponsored by Google to put a robot on the moon. CNN's Oren Liebermann has more.

Retired NASA astronaut, Leroy Chiao, explains what the OSIRIS-REx space probe attempts to achieve by studying asteroid samples.

Libertarian presidential candidate Gary Johnson explains his recent foreign policy gaffes and why they should not matter.

As Syrian peace talks are suspended between Russia and the US, activists say "bunker-buster" bombs destroyed a hospital in the rebel-held portion of Aleppo. ITN's Emma Murphy reports.

A crew commander describes what it was like to simulate a year living on Mars.

A SpaceX rocket exploded at its Cape Canaveral launch pad, destroying the rocket and the satellite it was due to launch.

Vice President Joe Biden says he wasn't ready to run for President in 2016 after his son Beau Biden died of brain cancer.

CNN's Sara Sidner takes us back to a time in America's history many would like to forget.

Since launching his campaign, Donald Trump has accidentally -- or at times quite intentionally -- offended entire groups of people.

Hurricane Matthew is expected to make landfall in Haiti with 145 mph winds and has prompted Florida and North Carolina governors to declare a state of emergency. CNN's Chad Myers reports.

RNC Chief Strategist and Communications Director Sean Spicer discusses a new web ad from the GOP that highlights Democratic vice presidential nominee Tim Kaine's relationship with capital punishment.

Spanish football club FC Barcelona is setting up the first football training academy in Lagos, Nigeria to gain access to younger players, and possibly future stars. CNN's Stephanie Busari reports.

Emirati photographer Yousef Al Habshi has created an unusual photo exhibition called "Little Monsters."

Vice President Joe Biden talks to CNN's Chris Cuomo about the New York Times report that said Donald Trump might have avoided income taxes for 18 years because of a $916 million loss declared in 1995.

Vice President Joe Biden shares an emotional story of his father telling him his loan application for college was rejected.

In an interview with CNN's Jim Sciutto, Alabama Sen. Jeff Sessions who is a senior adviser to Donald Trump said the Republican nominee simply offset losses against future earnings.

In an interview with CNN's Jim Sciutto, Assistant Attorney General John Carlin issues a stern message to hackers who attempted to infiltrate voting systems in the US.

Parts of the East Coast declare states of emergency as Hurricane Matthew slams Caribbean islands. CNN's Michael Holmes reports.

Vice President Joe Biden slammed Donald Trump in an exclusive interview with CNN in which he addressed Trump's controversial comments on PTSD in the military.

Hillary Clinton emerges from the first presidential debate with a five-point lead over Donald Trump in the race for the presidency, having narrowed the enthusiasm gap between her supporters and Trump's, according to a new CNN/ORC poll.