TESS Hunt for Young and Maturing Exoplanets (THYME) is an exoplanet search project. The researchers of the THYME collaboration are mainly from the United States and search for young exoplanets using data from the Transiting Exoplanet Survey Satellite (TESS). The new discoveries should help to understand the early evolution of exoplanets. As of April 2026 the collaboration has produced 14 papers announcing the discovery of exoplanets.
Paper number 8 adapted the backronym to "Transit Hunt for Young and Maturing Exoplanets", because it used data from the Kepler space telescope. As a follow-up to the K2-based Zodiacal Exoplanets In Time (ZEIT) survey, which also has a time-based name, the THYME project's name pronunciation alludes to the young age of the planets it has discovered.
List of discoveries +Nameorbital period (days)Radius ()age (Myrs)discovery yearreferenceDS Tuc Ab (TOI-200.01)8.15.7452019HIP 67522 b6.9610.0172020HIP 67522 c (candidate)≥238.01172020HD 63433 d4.21.14002024HD 63433 b (TOI-1726.01)7.112.154002020HD 63433 c (TOI-1726.02)20.552.674002020TOI-451 b1.91.91202021TOI-451 c9.23.11202021TOI-451 d164.11202021HD 110082 b (TOI-1098.01)10.23.22502021TOI-1227 b27.49.5112022TOI-2048 b13.82.63002022Kepler-1928 b19.582.01052022HD 109833 b (TOI-1097.01)9.192.9272023HD 109833 c (TOI-1097.02)13.902.6272023TOI-1224 b4.182.102102024TOI-1224 c17.952.882102024TOI-4364 b5.42.017102025
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