SETI bioastro: Life-Swapping Scenarios for Earth and Mars

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Science/Astronomy:

* Life-Swapping Scenarios for Earth and Mars

http://www.space.com/scienceastronomy/mars_life_041213.html>

Evidence is mounting that the time-weathered red planet was once a warm and water-rich world. And a Mars awash with water gives rise to that globe possibly being fit for habitation in its past - and perhaps a distant dwelling for life today.

* Prometheus Pre-empted? New Nuclear Fission Missions Evaluated

http://www.space.com/businesstechnology/technology/jimo_update_041210.html>

NASA is reviewing a list of fission-powered missions that could pre-empt the Jupiter Icy Moons Orbiter (JIMO) effort now being eyed for space travel no sooner than 2015.

* Robotic Fish From China
http://www.space.com/businesstechnology/technology/technovel_robofish_041210.html>

A robotic fish designed for underwater archaeology, mapping, water cultivation and even fishing has been co-developed by the Beijing University of Aeronautics and Astronautics and the Automation Research Institute (of the Chinese Academy of Sciences).

* Missing Link Spotted in Planet Formation
http://www.space.com/scienceastronomy/planet_formation_041209.html>

For several years scientists have been detecting planets around mature stars and, separately, imaging dust disks around younger stars. A strong theory has developed that planets form from these disks of material that are leftovers of the star formation process.

• Previous message: LARRY KLAES: "SETI bioastro: Prometheus Pre-empted? New Nuclear Fission Missions Evaluated"

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