Mysterious ‘alien megastructure star’ could be caused by dust

Tabby’s Star has baffled astronomers for years, as it shows completely unexpected light variation

Space telescope maps star’s ‘death spiral’ into a black hole

Some 290 million years ago, a star much like the Sun wandered too close to the central black hole of its galaxy

The object is thought to be the missing link between planets and stars, with a mass up to 80 times that of Jupiter

Rapidly spinning stars that produce X-rays at more than 100 times the peak levels ever seen from the Sun have been discovered

The strange behaviour of black holes has become somewhat less mysterious recently, according to NASA’s Swift spacecraft and NuSTAR satellite