Space on MSN20 小时
2 space telescope designs will battle it out to become NASA's next cosmic imager
The PRIMA space telescope would observe the cosmos in far-infrared light, while AXIS would be an orbiting X-ray detector.
BBC6 年
Einstein theory passes black hole test
Astronomers got the result by tracking the movement of a star as it passed through the gravitational field of a black hole The black hole at the centre of our galaxy has helped astronomers confirm ...
BBC2 年
Black hole: First picture of Milky Way monster
This is the gargantuan black hole that lives at the centre of our galaxy, pictured for the very first time. Known as Sagittarius A*, the object is a staggering four million times the mass of our Sun.