Astronomers have found a strange “iron bar” inside the Ring Nebula, a cloud of gas about 2,283 light-years away. The long, narrow strip of ionised iron is unusual because heavy elements like iron are ...

The Mystery: Evidence suggests dust is being destroyed to release iron, but the extreme conditions needed to break up dust (shock waves over 50 km/s or million-degree gas) aren’t present; scientists ...

Hubble Space Telescope has captured the death throes of the youngest and closest pre-planetary nebula from us, offering the ...