No evidence of artificial signals emanating from the object so far detected by the Green Bank Telescope, but monitoring and analysis continue. Initial data are available for public inspection in […]
Astronomy & Telescopes
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Press Release, TRAPPIST-1
Planet-Planet Occultations in TRAPPIST-1 and Other Exoplanet Systems
We explore the occurrence and detectability of planet-planet occultations (PPOs) in exoplanet systems. These are events during which a planet occults the disk of another planet in the same system, […]
Posted inAstronomy & Telescopes, Press Release
Characterization of Exoplanet-Host Stars
Precise and, if possible, accurate characterization of exoplanets cannot be dissociated from the characterization of their host stars. In this chapter we discuss different methods and techniques used to derive […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Press Release
Space Technology for Directly Imaging and Characterizing Exo-Earths
The detection of Earth-like exoplanets in the habitable zone of their stars, and their spectroscopic characterization in a search for biosignatures, requires starlight suppression that exceeds the current best ground-based […]
Posted inAlpha Centauri, Astronomy & Telescopes, Press Release
Space Telescope Designed to Directly Image the Habitable Zone of Alpha Centauri
The scientific interest in directly image and identifying Earth-like planets within the Habitable Zone (HZ) around nearby stars is driving the design of specialized direct imaging mission such as ACESAT, […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Press Release
Future Astrometric Space Missions for Exoplanet Science
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. It thus promises to […]
Posted inAstronomy & Telescopes, Barnard's Star, Exoplanets, -moons, -comets, Press Release
A New Search for Extrasolar Planets Around Barnard's Star
The National Science Foundation’s Arecibo Observatory and the Planetary Habitability Laboratory of the University of Puerto Rico at Arecibo joined the Red Dots project in the search for new planets […]
Posted inAstronomy & Telescopes
Going Off Source: Time Away With SETI In West Virginia
Keith Cowing: 27 years ago I made a trip to West Virginia to hang out with SETI researcher Jill Tarter and see how she searched the skies for evidence of […]
Posted inAstrogeology, Astronomy & Telescopes, Exoplanets, -moons, -comets, Fomalhaut, Press Release
A Complete ALMA Map of the Fomalhaut Debris Disk
We present ALMA mosaic observations at 1.3 mm (223 GHz) of the Fomalhaut system with a sensitivity of 14 μJy/beam. These observations provide the first millimeter map of the continuum […]
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Press Release, TRAPPIST-1
Inventing Tools for Detecting Life Elsewhere with Future Telescopes
Recently, astronomers announced the discovery that a star called TRAPPIST-1 is orbited by seven Earth-size planets. Three of the planets reside in the “habitable zone,” the region around a star […]