Add Yahoo as a preferred source to see more of our stories on Google. A planet-forming disk made from rock and gas surrounds a young star. NASA/JPL-Caltech/SwRI/MSSS ...

Newly developed tool helps parse data and detect planets smaller than Neptune around young stars, providing insight into their formation UNIVERSITY PARK, Pa. — A combination of cosmic processes shapes ...

Thanks to the discovery of thousands of exoplanets to date, we know that planets bigger than Earth but smaller than Neptune ...

The orbiting Kepler telescope is all about the numbers. How many stars have planets? How many have multiple planets? What sizes do they come in? How many of these planets are about the same size as ...