The transit method is currently one of our best means for the detection of potentially habitable “Earth-like” exoplanets.
K2
Posted inAstronomy & Telescopes, Citizen Science / Open Science, Exoplanets, -moons, -comets, Status Report
ExoClock Project IV: A Homogeneous Catalogue Of 620 Updated Exoplanet Ephemerides
The ExoClock project is an open platform aiming to monitor exoplanets by integrating observations from space and ground based telescopes.
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report, Stellar Cartography
Discovery Of A Multi-planetary System Orbiting The Aged Sun-like Star HD 224018
In 2016, Kepler/K2 detected a system of two sub-Neptunes transiting the star HD 224018, one of them showing a mono-transit event.
Posted inExoplanets, -moons, -comets, Imaging & Spectroscopy, Interstellar, Press Release, Stellar Cartography
Rotation Of Young Solar-type Stars As Seen By Gaia And K2
Accurate surface rotation measurements are crucial to estimate stellar ages and improve our understanding of stellar rotational evolution.
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, PLATO, Press Release
Exoplanet Exploration In The Context Of The PLATO Mission: From Detection To Population Studies
This thesis constitutes an observational effort to advance our understanding of planet formation and evolution across different regimes.
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Status Report
Comparing The Architectures Of Multiplanet Systems From Kepler, K2, And TESS Data
Exoplanet surveys like Kepler, TESS, and K2 have shown that planetary systems are common in our galaxy.
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
An Eccentric Sub-Neptune Moving Into the Evaporation Desert
Though missions such as Kepler, K2, and TESS have discovered >2,000 sub-Neptune and Neptunian planets, there is a dearth of such planets at close-in (P≲3 days) orbits.
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Status Report
Statistical Reevaluation of the USP Classification Boundary: Smaller Planets Within 1 Day, Larger Period Ratios Below 2 Days
Terrestrial worlds with P<1 day, known as ultra-short period planets (USPs), comprise a physically distinct population whose origins may be attributed to various possible formation channels within multi-planet systems.
![Relations between mutual inclination and stellar metallicity and stellar mass after sample control. Left: stellar metallicity vs. mutual inclination plot for a subsample of 78 systems selected to minimize the influence of stellar mass. Right: stellar mass vs. mutual inclination plot for a subsample of 81 systems selected to minimize the influence of stellar metallicity. Unlike [Fe/H] vs. ∆i, the correlation between stellar mass and ∆i is not statistically significant in our sample, although we cannot completely rule out such a correlation. See Section 5 for more details. -- astro-ph.EP](https://i0.wp.com/astrobiology.com/wp-content/uploads/2025/02/Short-Period-Small-Planets.png?resize=1200%2C720&ssl=1)
Posted inAstrogeology, Exoplanets, -moons, -comets, Status Report, Stellar Cartography
Short-Period Small Planets with High Mutual Inclinations are more Common around Metal-Rich Stars
We present a correlation between the stellar metallicities and the mutual inclinations of multi-planet systems hosting short-period small planets (a/Rs<12, Rp<4Re). We analyzed 89 multi-planet systems discovered by Kepler, K2, […]
Posted inExoplanets, -moons, -comets, Press Release
Ultra-dense Super-Earth With An Outer Companion Offers Clues About Its Formation
An international team led by researchers in Japan and Europe has discovered a new multi-planet system around a Sun-like star, including an ultra-short period planet with one of the highest […]