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Our solar system s shocking origin story – Engineering Evil

Public Release: 3-Aug-2017   New work offers fresh evidence supporting the supernova shock wave theory of our solar system's origin Carnegie Institution for Science   Caption The colors represent the relative amounts of short-lived radioactive isotopes, such as iron-60, injected into a newly formed protoplanetary disk (seen face on with the protostar being the light…

Methane Could Be The First Detectable Indication Of Life Beyond Earth

Methane Could Be The First Detectable Indication Of Life Beyond Earth
astrobiology.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from astrobiology.com Daily Mail and Mail on Sunday newspapers.

Methane could be first detectable indication of life beyond Earth

Methane could be first detectable indication of life beyond Earth
miragenews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from miragenews.com Daily Mail and Mail on Sunday newspapers.

Methane could be the first detectable indication of life beyond Earth

A new study assesses the planetary context in which the detection of methane in an exoplanet’s atmosphere could be considered a compelling sign of life.

Heating meteorites could let us in on exoplanets that might be habitable

“Smaller rocky planets likely form their atmospheres through outgassing during their formation and later from subsequent tectonic processes like volcanism,” researcher Maggie Thompson of University of California, Santa Cruz told SYFY WIRE. “This outgassing process occurs because a rocky planet is heated due to radioactive decay, collisions, and leftover heat from the formation process.” The primordial atmospheres of rocky planets like Earth may have been very different from what they were assumed to be. Thompson, planetary scientist Myriam Telus, and their team, who recently published a study in Nature Astronomy, found that the atmospheres of Earthlike planets in the early universe were more likely to form by gases that escaped from the surface. Billions of years ago, space was chaotic as objects smashed into other objects and either accreted into larger bodies or were flung into the void. Meteorites are the debris left over from that chaos.

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