The must-see wonders of California include dramatic coastlines, hidden caves, and stunning landscapes. Experience the best ...

Mars is the exciting next step in our exploration of space, but dust particles that were already a problem on the moon could ...

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