The new infrared spectrograph NIRPS, built with the participation of the Instituto de Astrofísica de Canarias (IAC) and installed on the 3.6-metre telescope at ESO’s La Silla Observatory in Chile, […]
Proxima Centauri
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Proxima Centauri, Status Report
Near-InfraRed Planet Searcher (NIRPS) Joining HARPS At ESO 3.6 m. On-sky Performance And Science Objectives
The Near-InfraRed Planet Searcher (NIRPS) is a high-resolution, high-stability near-infrared (NIR) spectrograph equipped with an AO system.
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Proxima Centauri, Status Report
Studying The Planetary System Of Proxima Centauri With NIRPS
We obtained 420 high-resolution spectra of Proxima, over 159 nights, using the Near Infra Red Planet Searcher (NIRPS).
Posted inAway Teams & Field Reports, Budgets and Policy, Imaging & Spectroscopy, Interstellar, Mapping, Geodesy, Cartography, Bathymetry, Missions & Hardware, Policy, Status Report, Stellar Cartography
Stellar Cartography: A Demonstration Of Interstellar Navigation Using New Horizons
Editor’s note: Those of you in the space community know that NASA Science is facing an immense budget cut. Dozens of missions have been cancelled and many missions that are […]
Posted inAtmospheres, Climate, Weather, Exoplanets, -moons, -comets, Gaia - Planetary Perspectives, Habitable Zones, Press Release, Proxima Centauri, Radiation, Space Weather & Heliophysics, Stellar Cartography
ALMA Shares A New View of Proxima Centauri
At a distance of just over four light years, Proxima Centauri is our nearest stellar neighbor and is known to be a very active M dwarf star.
Posted inAstrogeology, Exoplanets, -moons, -comets, Proxima Centauri, Status Report, TRAPPIST-1
Migration Of Bodies In The Proxima Centauri and Trappist 1 Planetary Systems
The motion of planetesimals was studied in the Proxima Centauri and TRAPPIST 1 exoplanetary systems.
Posted inAstronomy & Telescopes, Imaging & Spectroscopy, Proxima Centauri, Radiation, Status Report, Stellar Cartography
X-Ray, UV, and Optical Observations of Proxima Centauri’s Stellar Cycle
Proxima Cen (GJ 551; dM5.5e) is one of only about a dozen fully convective stars known to have a stellar cycle, and the only one to have long-term X-ray monitoring.
Posted inAstrogeology, Astronomy & Telescopes, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Habitable Zones, Imaging & Spectroscopy, Proxima Centauri, Status Report
Earth-like Exoplanets In Spin-orbit Resonances: Climate Dynamics, 3D Atmospheric Chemistry, and Observational Signatures
Terrestrial exoplanets around M- and K-type stars are important targets for atmospheric characterisation. Such planets are likely tidally locked with the order of spin-orbit resonances (SORs) depending on eccentricity. We […]
![Quantum communication with Q > 0, over distance L, is impossible at wavelengths where the horizontal line corresponding to L lies within the blue shaded region (summarizing the Milky Way ISM’s extinction curve). Gray regions are off limits from the ground. Adapted from [23, 26], with data from [30–37]. -- quant-ph](https://i0.wp.com/astrobiology.com/wp-content/uploads/2024/09/On-Interstellar-Quantum-Communication.png?resize=1200%2C715&ssl=1)
Posted inIntelligence & Language, Interstellar, SETI & Technosignatures, Status Report
On Interstellar Quantum Communication And The Fermi Paradox
Since it began Cocconi Morrison, the search for extraterrestrial intelligence (SETI) has focused on interstellar classical communication. Recently, Berera:2020rpl pointed out that, at certain frequencies, photon qubits can retain their […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Proxima Centauri, Status Report
RISTRETTO: A VLT XAO Design To Reach Proxima Cen b In The Visible
RISTRETTO is the evolution of the original idea of coupling the VLT instruments SPHERE and ESPRESSO lovis_2016a, aiming at High Dispersion Coronagraphy. RISTRETTO is a visitor instrument that should enable […]