Solar flares are often accompanied by filament/prominence eruptions (∼104 K and ∼1010−11 cm−3), sometimes leading to coronal mass ejections (CMEs) that directly affect the Earth’s environment. `Superflares’ are found on […]
December 2021
Posted inExoplanets, -moons, -comets
Atmospheres Of Rocky Exoplanets
Rocky planets are common around other stars, but their atmospheric properties remain largely unconstrained. Thanks to a wealth of recent planet discoveries and upcoming advances in observing capability, we are […]
Posted inVenus
Effect Of Clouds On Emission Spectra For Super Venus
We report a model study on the effects of clouds on emission spectra of super-Venus planets. Our goal is to assess possible ways to identify characteristic spectral features due to […]
Posted inTRAPPIST-1
An Upper Limit On Late Accretion And Water Delivery In The Trappist-1 Exoplanet System
The Trappist-1 system contains seven roughly Earth-sized planets locked in a multi-resonant orbital configuration, which has enabled precise measurements of the planets’ masses and constrained their compositions. Here we use […]
Posted inAstrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Press Release
The Atmospheres Of Rocky Exoplanets II. Influence Of Surface Composition On The Diversity Of Cloud Condensates
Clouds are an integral part of planetary atmospheres, with most planets hosting clouds. The understanding of not only the formation, but also the composition of clouds is crucial to the […]
Posted inExoplanets, -moons, -comets
A Hot Mars-sized Exoplanet Transiting An M Dwarf
We validate the planetary nature of an ultra-short period planet orbiting the M dwarf KOI-4777. We use a combination of space-based photometry from Kepler, high-precision, near-infrared Doppler spectroscopy from the […]
Posted inAstrogeology, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Habitable Zones, Origin & Evolution of Life, Press Release
Geoastronomy: Rocky Planets As The Lavosier-Lomonosov Bridge From The Non-living To The Living World
Life on Earth emerged at the interface of the geosphere, hydrosphere and atmosphere. This setting serves as our basis for how biological systems originate on rocky planets. Often overlooked, however, […]
Posted inBiosignatures & Paleobiology, Genomics, Proteomics, Bioinformatics, Microbiology & Virology, Press Release
Discovery Of A New Kinetic Factor That Governs The Carbon Metabolism Evolution Of Ancient Microbes
Tomonari Sumi, Associate Professor of Research Institute for Interdisciplinary Science, Okayama University, and Koji Harada, Associate Professor of Center for IT-Based Education, Toyohashi University of Technology, have developed a kinetic […]
Posted inOrigin & Evolution of Life
Gas Bubbles In Rock Pores – A Nursery For Life On Early Earth
Munich and Dresden based researchers create compelling scenario for the evolution of membraneless microdroplets as the origin of life. Where and how did life begin on Early Earth more than […]
Posted inAstrochemistry
Expanding The Submillimeter Wave Spectroscopy And Astronomical Search For Thioacetamide (CH3CSNH2) In The ISM
Thioacetamide (CH3CSNH2) is the sulfur analog to acetamide (CH3CONH2) and it is a viable candidate to search for in astronomical environments specifically toward regions where other S-bearing molecules have been […]