Shenzhou-16 will carry out a number of experiments during the mission. Jiuquan, China: China sent three astronauts to its Tiangong space station on Tuesday, putting…

As a star runs out of fuel, it will billow out to a million times its original size, engulfing any matter — and planets —…

Nearly half the stars in our galaxy are solitary like the sun. The other half comprises stars that circle other stars, in pairs and multiples,…

Astronomers have been leapfrogging each other into the past lately. Last week, a group using the Hubble Space Telescope announced they had discovered what could…