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warrenellis:

Eta Carinae and the Expanding Homunculus Nebula via NASA http://ift.tt/1v9w54i

“Gas roils around inside galaxies, forming new stars; it blows out of galaxies for its own hot reasons; it hangs around outside the galaxies, cools off, and falls back in to form more stars, then blows back out again, in, out, over and over.  It’s like the galaxy is breathing." http://www.lastwordonnothing.com/2014/11/24/8906/

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COMING SOON: Asteroid Awareness Day

fuckyeahdarkextropian: “Preparations for Asteroid Awareness Day will be unveiled alongside a declaration signed by leading figures that calls on governments, private companies and philanthropists to back technologies that spot and track space rocks that might one day slam into Earth. Signed by Lord Rees, the astronomer royal, Ed Lu, a former shuttle astronaut, and Brian […]

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The Dark Extropian Report: PANSPERMIA SPECIAL EDITION

fuckyeahdarkextropian:

Welcome to a Special Edition of The Dark Extropian Report. It’s been a bumper few weeks, months and years even in the world of astrobiology, and in particular in the area related to the theory of Panspermia – the idea that life came riding in on an asteroid or comet to our planet. This is one of the very core ideas of Dark Extropianism; that we are inextricably bound to the cosmos, on a grand scale that at the very least is inter-planetary. That our fate lies there as much as our origins do. That we are more than just star dust, but part of a living system that spans billions of years, who’s distance is measured by the speed of light. That ecology is something that spans the galaxy. That we are not meant to stay here, that our destiny lies amongst the stars.

The Dark Extropian Report: PANSPERMIA SPECIAL EDITION

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This is the background for an emerging aspect of the space weather discipline: planetary space weather. In this article, we explore what characterizes planetary space weather, using some examples throughout the solar system. We consider energy sources and timescales, the characteristics of solar system objects and interaction processes. We discuss several developments of space weather interactions including the effects on planetary radiation belts, atmospheric escape, habitability and effects on space systems. We discuss future considerations and conclude that planetary space weather will be of increasing importance for future planetary missions.

What characterizes planetary space weather?
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