K2-18b, an exoplanet 120 light-years away, may be the best hope to confirm that life exists beyond Earth. Here's what to know.

The night sky has always inspired humanity, filling us with awe and the urge to explore the great unknown. But in recent ...

NASA and partners are building the first quantum gravity sensor for space, a breakthrough instrument that uses ultra-cold ...

The discovery was made on a massive exoplanet known as K2-18b that for years has captivated scientists searching for life ...

In the grand puzzle of the cosmos, one question continues to defy easy answers: how fast is the universe expanding?

Put simply, “ cut and come again” flowers are plants that are repeat bloomers. While some flowers — think tulips, daffodils, lilacs, and certain roses and hydrangeas — bloom just once a season, “ cut ...

A chemical called dimethyl sulfide popped up in an analysis of exoplanet K2-18b’s atmosphere. On Earth, it’s only made by ...