High levels of X-ray and UV activity on young M dwarfs may drive rapid atmospheric escape on temperate, terrestrial planets orbiting within the liquid water habitable zone. However, secondary atmospheres […]
space weather
Posted inPress Release, Space Weather & Heliophysics
Recently Discovered Planets Not As Safe From Stellar Flares As First Thought
A nearby star, the host of two (and possibly three) planets, was initially thought to be quiet and boring. These attributes are sought-after as they create a safe environment for […]
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Citizen Science / Open Science, Extinction events, Press Release, Space Weather & Heliophysics
Exploding Stars May Have Caused Mass Extinction On Earth
Imagine reading by the light of an exploded star, brighter than a full moon – it might be fun to think about, but this scene is the prelude to a […]
Posted inEpsilon Eridani, Exoplanets, -moons, -comets, Habitable Zones, Press Release, Space Weather & Heliophysics
An Application Of A solar-type Dynamo Model For Epsilon Eridani
During the last decade, the relation between activity cycle periods with stellar parameters has received special attention. The construction of reliable registries of activity reveals that solar type stars exhibit […]
Posted inPress Release, Space Weather & Heliophysics
The Sun Is Less Active Than Other Solar-like Stars
Magnetic activity of the Sun and other stars causes their brightness to vary. We investigate how typical the Sun’s variability is compared to other solar-like stars, i.e. those with near-solar […]
Posted inPress Release, Space Weather & Heliophysics
Solar Storms Could Scramble Whales' Navigational Sense
When our sun belches out a hot stream of charged particles in Earth’s general direction, it doesn’t just mess up communications satellites. It might also be scrambling the navigational sense […]
Posted inPress Release, Space Weather & Heliophysics
A Census Of Coronal Mass Ejections On Solar-like Stars
Coronal Mass Ejections (CMEs) may have major importance for planetary and stellar evolution. Stellar CME parameters, such as mass and velocity, have yet not been determined statistically. So far only […]
Posted inPress Release, Space Weather & Heliophysics
Effect Of Stellar Flares on Planetary Habitability
Scientists funded in part by the NASA Astrobiology program are providing new insights into how terrestrial planets are affected by coronal mass ejections (CMEs) early in the formation of a […]
Posted inPress Release, Space Weather & Heliophysics
Superflares On Solar-type Stars From The First Year Observation Of TESS
Superflares, as strong explosions on stars, have been well studied with the progress of space time-domain astronomy. In this work, we present the study of superflares on solar-type stars using […]
Posted inPress Release, Space Weather & Heliophysics
Frequency of Coronal Mass Ejection Impacts with Early Terrestrial Planets and Exoplanets Around Active Solar-like Stars
Energetic flares and associated coronal mass ejections (CMEs) from young magnetically active solar-like stars can play a critical role in setting conditions for atmospheric escape as well aspenetration of accelerated […]