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President Obama, Why Humans On Mars Right Now Are Bad For Science

... For Search For Life In Hidden Extra Terrestrial Oceans Of Europa And Enceladus Life that is based on novel new principle ...

Article - Robert Walker - Nov 14 2016 - 7:39am - 0 attachments

Wait, Let's Not Rush To Be Multiplanetary Or Interstellar - A Comment On Elon Musk's Vision

... to Saturn and beyond. He talked about humans landing on Europa but that doesn't make much sense for planetary protection, since Europa along with Enceladus and Mars are the three most vulnerable places in ...

Article - Robert Walker - Oct 28 2016 - 11:12pm - 0 attachments

How Valuable is Pristine Mars for Humanity - Opinion Piece?

... to this day, for instance in the under surface oceans of Europa, one of Jupiter's moons (to right); or Encladus, one of Saturn's moons. ...

Blog Post - Robert Walker - Jan 19 2014 - 11:23am - 0 attachments

Does Elon Musk's Plan Violate The Outer Space Treaty - Planetary Protection For Mars After Human Crashes

... that we need to take especial care with Mars Europa Enceladus. There are a few others, that need ... imagine how exciting that discovery would be? Well Mars, Europa and Enceladus may be like exoplanets and exomoons in our own solar ...

Article - Robert Walker - Oct 15 2016 - 1:09pm - 0 attachments

Hubble Spots Europa Geysers Again - How They Did It - And What Next? Flyby? Lander?

... has found new evidence of possible plume activity on Europa. In a series of ten observations, they saw them on three occasions. Here ... Moon Note that in all these images, the photograph of Europa was not taken by Hubble. It just made the observation of the water plume ...

Article - Robert Walker - Oct 1 2016 - 6:54pm - 0 attachments

Our Solar System Could Lose One Or More Of Its Gas Giants Billions Of Years In The Future

... and it typically retains its moons as well. So perhaps Europa and other moons of Jupiter will remain habitable for ocean life by then. ...

Article - Robert Walker - Sep 10 2016 - 4:42pm - 0 attachments

Case For Moon - New Positive Future For Humans In Space - Open Ended With Planetary Protection At Its Heart

... places in our solar system, including Venus, Mercury, Europa, Enceladus, Titan, comets, asteroids and so on. Later, once we have the ... For Search For Life In Hidden Extra Terrestrial Oceans Of Europa And Enceladus and Why Mars Microbes Matter - Like Tigers - And ...

Article - Robert Walker - May 21 2016 - 10:26pm - 0 attachments

Can We Risk Microbes From Human Crashes - On Mars? If Not, What Happens To Dreams To Colonize The Planet?

... project scientist for the Galileo mission and the planned Europa Orbiter mission, the term "robotic exploration" misses the point. NASA ... moon Callisto even. But let's go slowly with Mars, Europa and Enceladus! Anyway, so let's now look at this in detail. This ...

Article - Robert Walker - Mar 21 2016 - 5:28am - 0 attachments

Jupiter: Europa's Ocean Could Have Earth-Like Chemical Balance, Even Without Volcanic Hydrothermal Activity

One belief is that Jupiter's moon Europa has a deep, hidden ocean of salty liquid water beneath its icy shell. ... of speculation and  the answer may hinge on whether Europa has environments where chemicals are matched in the right proportions to ... Earth exploited such niches and still does today. What Europa lacks, however, is Earth's volcanic hydrothermal activity, which tempers ...

Article - News Staff - May 18 2016 - 7:30am - 0 attachments

Why Didn't ETs, Or Self Replicating Machines, Colonize Our Solar System Millions Of Years Ago?

... to evolve. There seem many more chances for habitats like Europa, with its ocean below an icy crust, warmed up by tidal heating. We know ... to its surface oceans of methane / ethane). Europa. The most promising habitat for complex life outside of the Earth is its ...

Blog Post - Robert Walker - Jan 19 2014 - 11:06am - 0 attachments