The SETI Ellipsoid is a strategy for technosignature candidate selection which assumes that extraterrestrial civilizations who have observed a galactic-scale event — such as supernova 1987A — may use it […]
TESS
HPIC: The Habitable Worlds Observatory Preliminary Input Catalog
The Habitable Worlds Observatory Preliminary Input Catalog (HPIC) is a list of ~13,000 nearby bright stars that will be potential targets for the Habitable Worlds Observatory (HWO) in its search […]
nuance: Efficient Detection Of Planets Transiting Active Stars
The detection of planetary transits in the light curves of active stars, featuring correlated noise in the form of stellar variability, remains a challenge. Depending on the noise characteristics, we […]
SETI Institute Employs SETI Ellipsoid Technique for Searching for Signals from Distant Civilizations
In a paper published in the Astronomical Journal, a team of researchers from the SETI Institute, Berkeley SETI Research Center and the University of Washington reported an exciting development for […]
The TESS-Keck Survey. XIX. A Warm Transiting Sub-Saturn Mass Planet and a non-Transiting Saturn Mass Planet Orbiting a Solar Analog
The Transiting Exoplanet Survey Satellite (TESS) continues to dramatically increase the number of known transiting exoplanets, and is optimal for monitoring bright stars amenable to radial velocity (RV) and atmospheric […]
TESS and ESPRESSO Discover A Super-Earth And A Mini-Neptune Orbiting The K-dwarf TOI-238
The number of super-Earth and mini-Neptune planet discoveries has increased significantly in the last two decades thanks to transit and radial velocity surveys. When it is possible to apply both […]
Teegarden’s Star Revisited: A Nearby Planetary System With At Least Three Planets
The two known planets in the planetary system of Teegarden’s Star are among the most Earth-like exoplanets currently known. Revisiting this nearby planetary system with two planets in the habitable […]
Quantifying The Effect of Short-timescale Stellar Activity Upon Transit Detection in M Dwarfs
M dwarf stars comprise 70-80% of the galaxy’s stars and host most of its rocky planets. They also importantly differ from Sunlike stars in that they are “active” for billions […]
Super-Earth Discovered In The Habitable Zone Of TOI-715
The discovery: A “super-Earth” ripe for further investigation orbits a small, reddish star that is, by astronomical standards, fairly close to us – only 137 light-years away. The same system […]
Unraveling The Mysteries Of Planet Formation And Evolution In A Distant Solar System
A recently discovered solar system with six confirmed exoplanets and a possible seventh is boosting astronomers’ knowledge of planet formation and evolution. Relying on a globe-spanning arsenal of observatories and […]
