An exoplanet has been discovered orbiting our solar twin

There are billions upon billions of stars in the sky – but surprisingly few of them are a lot like our sun. Astronomers using the HARPS planet finder via the…

On brown dwarfs, storms of molten iron are always forecast

Brown dwarfs are much smaller and cooler than our sun. They might not be massive enough to have a core that performs nuclear reactions, but they do have extreme conditions.…