Its lifespan means it will be one of the last stars left shining when the universe grows cold and dark. Little is known about ultra-cool dwarf stars due to their low luminosity, however they are ...

That network is called the Search for Planets Eclipsing Ultra-Cool Stars, or SPECULOOS ... is to detect rocky planets ...

A study of more than 26,000 white dwarf stars has confirmed a long-predicted but elusive effect in these ultra-dense, dying stars: Hotter white dwarfs are slightly puffier than cooler ones ...