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The mass of the Mars-sized exoplanet Kepler-138 b from transit timing

Here we report the sizes and masses of three planets orbiting Kepler-138, a star much fainter and cooler than the Sun. We determine that the mass of the Mars-sized inner planet, Kepler-138 b, is $0.066^{+0.059}_{-0.037}$ Earth masses. The middle and outer planets are both slightly larger than Earth...

Transit Timing Observations from Kepler. V. Transit Timing Variation Candidates in the First Sixteen Months from Polynomial Models

Out of hundreds of candidate planetary systems, scientists had previously verified six systems with multiple transiting planets. Now, Kepler observations have verified planets in 11 new planetary systems. Many of these systems contain additional planet candidates that are yet to be verified.

Transit Timing Observations from Kepler. VI. Potentially Interesting Candidate Systems from Fourier-based Statistical Tests

Planets in Systems from NASA’s Kepler Mission The image above depicts multiple planet systems discovered by NASA’s Kepler mission and confirmed by transit timing variations (as of January 2012). Out of hundreds of candidate planetary systems, scientists had previously verified six systems with multiple transiting planets (denoted here in red). Now, Kepler observations have verified planets (shown here in green) in 11 new planetary systems. Many of these systems contain additional planet candidates that are yet to be verified (shown here in dark purple).

Transit timing observations from Kepler - III. Confirmation of four multiple planet systems by a Fourier-domain study of anticorrelated transit timing variations

Planets in Systems from NASA’s Kepler Mission The image above depicts multiple planet systems discovered by NASA’s Kepler mission and confirmed by transit timing variations (as of January 2012). Out of hundreds of candidate planetary systems, scientists had previously verified six systems with multiple transiting planets (denoted here in red). Now, Kepler observations have verified planets (shown here in green) in 11 new planetary systems. Many of these systems contain additional planet candidates that are yet to be verified (shown here in dark purple).