Three new planets that could host life have been discovered, NASA scientists said today.
The "super Earth-sized" worlds were found in the habitable zone outside the solar system by NASA's Kepler satellite.
Space scientist Bill Borucki said two of the planets, named Kepler-62e and Kepler-62f, were "the best candiates found to date for habitable planets."
More top news
The hotel chain said three of its properties - in Maidenhead, Brentford and Tottenham - have been investigated during a detailed assessment
In its first response since the 22-year-old's death, North Korea said Mr Warmbier was treated "according to international standards".
Police would face "real challenges" tackling a repeat of the London riots after years of cuts, one of Britain's most senior officers warns.