NASA's Spitzer Space Telescope has revealed the first known system of seven Earth-size planets around a single star. Three of these planets are firmly located in the habitable zone, the area around the parent star where a rocky planet is most likely to have liquid water.
Caltech, JPL, and NIST researchers have developed a simple, cost-effective laser frequency comb, potentially simplifying measurements of the telltale "wobbles" from stars that reveal the presence and properties of planets around other stars.
Known as the Combined Array for Research in Millimeter-wave Astronomy, or CARMA, the telescopes tucked away on a remote, high-altitude site in the Inyo Mountains formed one of the most powerful millimeter interferometers in the world.
Associate Professor of Astronomy Dimitri Mawet, who recently joined Caltech from the Paranal Observatory in Chile, searches for solar systems around other stars, and hopes to one day discover a planet much like our own.