More than a million years from now, our solar system will briefly house two stars

It will shine three times brighter than Mars in the night’s sky. It might also cause an unpleasant stir in the Oort cloud…

Newly found gassy exoplanet has mass similar to Earth’s

A team of astronomers recently discovered a new exoplanet some 200 light years away whose mass is about the same as Earth’s – the first Earth-mass planet that transits, or crosses in front of, its host star. Although very similar in mass, the planet is 60% larger in diameter suggesting it has a thick atmosphere. Due to its very short