A rare star system with six exoplanets has been unlocked with the help of ESA’s Cheops mission. The discovery is particularly valuable because the planets’ orbital configuration shows that the system is largely unchanged since its formation more than a billion years ago.
From 25 to 27 September, the INAF-Astrophysical Observatory of Catania will host a workshop dedicated to PLATO, the 3rd mission of class M in the ESA Cosmic Vision program. Its main goal is detecting terrestrial planets in the habitable zone of solar type stars. With...
A cosmic alignment and a little bit of spacecraft gymnastics has provided a ground-breaking measurement that is helping solve the 65-year-old cosmic mystery of why the Sun’s atmosphere is so hot.
Its name is Toi-1853b and it is extremely peculiar: every 30 hours it completes one complete revolution around its star (the Earth takes a year to complete one complete revolution around the Sun), it has a radius comparable to Neptune’s (3.5 Earth radii, hence...
By combining the photometry of the TESS space telescope with the high-resolution spectroscopy of HARPS-N (TNG), a team of researchers, led by Antonio Frasca of the Osservatorio Astrofisico di Catania, has discovered a low-mass eclipsing binary system, the first in the...
Data from ESA’s exoplanet mission Cheops has led to the surprising revelation that an ultra-hot exoplanet that orbits its host star in less than a day is covered by reflective clouds of metal, making it the shiniest exoplanet ever found.
ESA’s exoplanet mission Cheops confirmed the existence of four warm exoplanets orbiting four stars in our Milky Way. These exoplanets have sizes between Earth and Neptune and orbit their stars closer than Mercury our Sun. These so-called mini-Neptunes are unlike any...
A “Two-day Workshop dedicated to Critical Computing” will be held on June 15-16 in Catania, using the spaces made available by the local Physics Department. Details can be found at: https://indico.ict.inaf.it/e/USCVIII-2023. “Critical Computing” is here to be...
Enceladus is a prime target in the search for life in our solar system, having an active plume likely connected to a large liquid water subsurface ocean.
Using the sensitive NIRSpec instrument onboard JWST, we searched for organic compounds and characterized the plume’s composition and structure. The observations directly sample the fluorescence emissions of H2O and reveal an extraordinarily extensive plume (up to 10,000 km or 40 Enceladus radii) at cryogenic temperatures (25 K) embedded in a large bath of emission originating from Enceladus’ torus.
The instrument Jovis, Amorum ac Natorum Undique Scrutator (JANUS) passed the commissioning phase with full marks. It is a real test during which – 8 million km from the Earth – it opened its electronic “eyes”, sending the so-called “first light”, i.e. his first series of images, to the technicians and researchers
