A decades-old cosmic mystery may finally be solved. Scientists now suspect that the strange X-ray glow from a distant white ...

So what does such a planetary alignment mean for science? Well, truthfully, not much. A planetary alignment occurs "when the planets 'line up' on the same side of the sun, generally speaking ...

For the first time, scientists have been able to map the atmosphere of WASP-121b - also known as Tylos - in 3D and what they found sounds like something out of science fiction. The planet is 900 ...