On 16 Sunday December, comet 46P/Wirtanen will make one of the 10 closest approaches of Earth in 70 years – and you may even be able to see it without a telescope

On 16 Sunday December, comet 46P/Wirtanen will make one of the 10 closest approaches of Earth in 70 years – and you may even be able to see it without a telescope
The new study was conducted using NASA’s Chandra X-ray Observatory
This kind of event has only been clearly seen at the centre of a galaxy before, not at the outer edges
An odd flash of X-rays has been discovered by NASA’s Chandra X-ray Observatory in the deepest X-ray image ever obtained
NASA’s Chandra X-ray Observatory and other telescopes reveal that a recently discovered galaxy is undergoing an extraordinary boom of stellar construction
The dual-star system produces a cyclic flood of gamma rays, the highest-energy form of light
Astronomers have found evidence for what is likely one of the most extreme pulsars, or rotating neutron stars, found
Combining observations, astronomers have been able to learn new things about Tycho’s supernova remnant and the explosion that made it
A giant jet spanning continuously for many light years is seen racing out of the galaxy Pictor A