Pathways to Habitability: from disks to active stars, planets and life
... - how do these bodies form planets? - where is the water? - how is the water transported? ...
... - how do these bodies form planets? - where is the water? - how is the water transported? ...
Space Weather
... that the charged particles have become separated and form a quasineutral gas. In addition to emitting light, the sun is constantly emitting this plasma in the form of a solar wind. The conditions within the solar wind are highly variable, depending in part on the solar cycle, but the typical velocit ...
... that the charged particles have become separated and form a quasineutral gas. In addition to emitting light, the sun is constantly emitting this plasma in the form of a solar wind. The conditions within the solar wind are highly variable, depending in part on the solar cycle, but the typical velocit ...
Martian Life
... evolution (Smith and Morowitz 1982) has special relevance for evaluating whatever signs of life we find on Mars (see Conway Morris 2003 for a dissenting opinion on this progression from the deterministic to the quirky). What, if anything, does “a second genesis on Mars” mean? What could we conclude ...
... evolution (Smith and Morowitz 1982) has special relevance for evaluating whatever signs of life we find on Mars (see Conway Morris 2003 for a dissenting opinion on this progression from the deterministic to the quirky). What, if anything, does “a second genesis on Mars” mean? What could we conclude ...
Size scales in the solar system - University of Iowa Astrophysics
... Next time: • How far away are the stars (compared to solar system ...
... Next time: • How far away are the stars (compared to solar system ...
summary of key concepts: week #1
... 2. A galaxy is an `island of stars’ held together by gravity. Our own galaxy, called the Milky Way, has about 100 billion stars. On the largest scale (of the whole observable Universe) the galaxy is the basic building block. Galaxies often collide with each other (very very slowly, over billions of ...
... 2. A galaxy is an `island of stars’ held together by gravity. Our own galaxy, called the Milky Way, has about 100 billion stars. On the largest scale (of the whole observable Universe) the galaxy is the basic building block. Galaxies often collide with each other (very very slowly, over billions of ...
EXPOSE
EXPOSE is a multi-user facility mounted outside the International Space Station dedicated to astrobiology. EXPOSE was developed by the European Space Agency (ESA) for long-term spaceflights and was designed to allow exposure of chemical and biological samples to outer space while recording data during exposure.The results will contribute to our understanding of photobiological processes in simulated radiation climates of planets (e.g. early Earth, early and present Mars, and the role of the ozone layer in protecting the biosphere from harmful UV-B radiation), as well as studies of the probabilities and limitations for life to be distributed beyond its planet of origin. EXPOSE data support long-term in situ studies of microbes in artificial meteorites, as well as of microbial communities from special ecological niches. Some EXPOSE experiments investigated to what extent particular terrestrial organisms are able to cope with extraterrestrial environmental conditions. Others tested how organic molecules react when subjected for a prolonged period of time to unfiltered solar light.