NEW YORK, May 23 (Xinhua) -- In April, a team of astronomers announced that they might have found signs of life on a planet over 120 light-years from Earth. The mere possibility of ...

SYDNEY, June 2 (Xinhua) -- Astronomers have detected silicon monoxide gas in the atmosphere of a planet 850 lightyears from Earth, the first time the gas has ever been observed on any planet ...