Madrid will limit the number of people at Puerta del Sol square, Brussels scrapped celebrations following threats and Moscow police will for the first time close off Red Square. Other cities are going ahead with normal New Year's Eve festivities.
An American man is guaranteed a place in the Cincinnati Open final after Frances Tiafoe and Brandon Nakashima won their quarterfinal matches on Friday....
Scientists have discovered S301, a star traveling at 8% of the speed of light around the black hole at the center of the Milky Way. Its orbit could help test Einstein’s theory of relativity and reveal how quickly Sagittarius A* rotates.
