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Extrasolar Planets: August 2017


Context. Clouds have already been detected in exoplanetary atmospheres. They play crucial roles in a planet's atmosphere and climate and can also create ambiguities in the determination of atmospheric parameters such as trace gas mixing ratios.

High-precision astrometry at the sub-microarcsecond level opens up a window to study Earth-like planets in the habitable zones of Sun-like stars, and to determine their masses.

Kepler-96 is an active solar-type star harbouring a Super-Earth planet in close orbit. Its age of 2.3 Gyr is the same as the Sun when there was a considerable increase of oxygen in Earth's atmosphere due to micro-organisms living under the sea.

Unmixing the disk-integrated spectra of exoplanets provides a clue to heterogeneous surfaces that we cannot directly resolve in the foreseeable future.

Astrophysicists at the University of Texas at Arlington have predicted that an Earth-like planet may be lurking in a star system just 16 light years away.

A new study by an international team of astronomers reveals that four Earth-sized planets orbit the nearest sun-like star, tau Ceti, which is about 12 light years away and visible to the naked eye.

If we want to know more about whether life could survive on a planet outside our solar system, it's important to know the age of its star.

The removal of noise typically correlated in time and wavelength is one of the main challenges for using the radial velocity method to detect Earth analogues.

NASA's Transiting Exoplanet Survey Satellite (TESS) has moved one step closer to launch after successfully passing its Systems Integration Review (SIR), an independent review from independent technical and scientific experts who have deemed the mission ready to begin installation of its scientific instrument onto the spacecraft.

We report the discovery from K2 of a transiting terrestrial planet in an ultra-short-period orbit around an M3-dwarf.

The bright M dwarf K2-18 at 34 pc is known to host a transiting super-Earth-sized planet orbiting within the star's habitable zone; K2-18b.

Several observational works have shown the existence of Jupiter-mass planets covering a wide range of semi-major axes around Sun-like stars.