A team of astronomers had two reasons to celebrate recently. Not only did they possibly find the evidence of water on an exoplanet outside of our Solar System, but the find was made using a new technique so now they know the technique works! They used high-resolution L-brand spectroscopy to measure the radial velocity variations of the hot Jupiter in the tau Bootis system. And they have a lot of hope for the future of this technique. They say that this technique used with more-powerful future telescopes could help examine the atmospheres of planets that are much cooler and more distant from their host stars.