Kepler and TESS observations led to the discovery of many close-in super Earths, including some with ultra-short orbital periods (≲1 day).
Magnetic Fields, Electromagnetism, bioelectricity,
Posted inAtmospheres, Climate, Weather, Biophysics, Extinction events, Habitable Zones, Impact events, Magnetic Fields, Electromagnetism, bioelectricity,, Meteorites & Asteroids, Origin & Evolution of Life, Space Weather & Heliophysics, Status Report, Terraforming & Geoengineering, Water/Hycean Worlds & Oceanography
Ray Ionisation Of A Post-impact Early Earth Atmosphere: Solar Cosmic Ray Ionisation Must Be Considered In Origin-of-life Scenarios
Cosmic rays (CR), both solar and Galactic, have an ionising effect on the Earth’s atmosphere and are thought to be important for prebiotic molecule production. In particular, the H2-dominated atmosphere […]
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Magnetic Fields, Electromagnetism, bioelectricity,, Press Release, Radiation, Space Weather & Heliophysics
Unveiling The Mysterious Sprite Fireworks Over The Himalayas
Have you ever heard of—or even seen—red lightning? These are not animated characters but real atmospheric phenomena known as electrical discharges that occur high above thunderstorms. Scientists refer to them […]
Posted inAtmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Genomics, Proteomics, Bioinformatics, Habitable Zones, Magnetic Fields, Electromagnetism, bioelectricity,, Origin & Evolution of Life, Press Release, Water/Hycean Worlds & Oceanography
Microlightning In Water Droplets May Have Sparked Life On Earth
Life may not have begun with a dramatic lightning strike into the ocean but from many smaller “microlightning” exchanges among water droplets from crashing waterfalls or breaking waves.
Posted inArtemis & Lunar Exploration, Astronomy & Telescopes, Exploration Gear & Tech, Magnetic Fields, Electromagnetism, bioelectricity,, Missions & Hardware, Moon, SETI & Technosignatures, Status Report
Results from NASA’s First Radio Telescope on the Moon: Terrestrial Technosignatures and the Low-Frequency Galactic Background Observed by ROLSES-1 Onboard the Odysseus Lander
Radiowave Observations on the Lunar Surface of the photo-Electron Sheath instrument (ROLSES- 1) onboard the Intuitive Machines’ Odysseus lunar lander represents NASA’s first radio telescope on the Moon, and the […]
Posted inAstrochemistry, Astrogeology, Biophysics, Biosignatures & Paleobiology, Exploration Gear & Tech, Imaging & Spectroscopy, Magnetic Fields, Electromagnetism, bioelectricity,, Missions & Hardware, Status Report, Tricorders & Sensors
An Ultraviolet Raman Spectral Library of 21 Organic Compounds and 41 Minerals for Planetary Exploration on Mars
Searching for life on Mars can help us understand the origins and evolution of life, and it has always been a primary scientific goal of Mars exploration missions by different […]
Posted inGanymede, Icy Worlds, Jupiter, Magnetic Fields, Electromagnetism, bioelectricity,, Missions & Hardware, Radiation, Status Report
Ionosphere of Ganymede: Galileo Observations Versus Test Particle Simulation
In this paper, we model the plasma environment of Ganymede by means of a collisionless test particle simulation.
![Stokes I (top), polarized intensity (PI) (middle) and polarization fraction (PF) (bottom) at 0.87, 1.3, 2.1 and 2.7 mm wavelengths plotted against right ascension (Δα) and declination (Δδ). Polarization vectors are also shown on the PI and PF images. The Stokes I and PI are converted to the brightness temperature (TB) by assuming the Rayleigh–Jeans approximation. The PF and polarization vectors are plotted where the polarized intensity is detected above the 3σ noise level. Contours on the PI and PF images indicate the brightness temperatures of the Stokes I emission of [0.1, 1, 10, 20] K for 0.87 mm, [0.1, 1, 5, 10, 20] K for 1.3 mm, [0.1, 1, 5, 9] K for 2.1 mm and [0.06, 0.3, 1, 3] K for 2.7 mm. The resolution (beam size) is shown as a small ellipse in the lower left corner of each panel. -- NAOJ](https://i0.wp.com/astrobiology.com/wp-content/uploads/2025/02/Stellar-Magnetic-Fingerprints.png?resize=1200%2C719&ssl=1)
Posted inAstrogeology, Astronomy & Telescopes, Exoplanets, -moons, -comets, Magnetic Fields, Electromagnetism, bioelectricity,, Press Release
Stellar Magnetic Fingerprints And Planetary Formation
For the first time astronomers have succeeded in observing the magnetic field around a young star where planets are thought to be forming. The team was able to use dust […]
Posted inAstrogeology, Biogeochemical Cycles & Geobiology, Habitable Zones, Magnetic Fields, Electromagnetism, bioelectricity,, Mars, Sample Return, Status Report
What We Can Learn About Mars From The Magnetism of Returned Samples
The Red Planet is a magnetic planet. The Martian crust contains strong magnetization from a core dynamo that likely was active during the Noachian period when the surface may have […]
Posted inAtmospheres, Climate, Weather, Exoplanets, -moons, -comets, Magnetic Fields, Electromagnetism, bioelectricity,, Space Weather & Heliophysics, Status Report
Ohmic Heating In The Upper Atmosphere of Hot Exoplanets The Influence of a Time-varying Magnetic Field
Exoplanets on close-in orbit are subject to intense X-ray and ultraviolet (XUV) irradiation from their star. Their atmosphere therefore heats up, sometimes to the point where it thermally escapes from […]