The Gaia satellite has spotted an enormous ‘ghost’ galaxy lurking on the outskirts of the Milky Way
Four massive planets have been discovered orbiting a distant young star
This unusual collection of massive planets makes astronomers question how planets are formed
Dark matter likely to be cold rather than ‘fuzzy’, suggests new study
An international team of cosmologists have used data from the intergalactic medium – the vast, largely empty space between galaxies – to narrow down what dark matter could be
Black hole’s temperature swings measured for the first time
These winds spewing from these exotic objects can heat up and cool down in the span of just a few hours