We take a look at what causes these stars to speed across the universe
Astronomers unexpectedly discover a new type of pulsating star
These “hot subdwarf pulsators” are a tenth of the size of the Sun and pulsate over just a few minutes
Astronomers spot a pair of stars rejected and ejected from their host galaxy
The stellar travellers have found themselves about 600,000 light years away from their once-homely galaxy