NASA has confirmed the discovery of nearly 4,000 exoplanets – also called “extrasolar” planets because they lie outside of our solar system – but has yet to find any like Earth. The agency has ...

“That planet shouldn’t be there.” Today we have confirmed about 4,000 exoplanets. The majority were discovered by the Kepler space telescope, launched in 2009. Kepler’s mission was to see ...

A fresh look at past data reveals that exoplanets with masses similar to Jupiter formed much sooner than previously thought, according to new research. A fresh look at past data reveals that ...