Space

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

contact with them, and the nearest ETs might be hundreds of light years away from us. So that might be ...

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

NASA's Plan To Reduce Planetary Protection For Mars Risks Accidentally Extinguishing Second Genesis Of Life Before We Find It

"swimming pools for bacteria" can form readily on Mars wherever there is ice and salt in contact. This ...

Article - Robert Walker - Mar 19 2020 - 7:19pm

Are We Alone In The Cosmos, Cursed By Fermi's Paradox?

experiments) about contact will be consulted by our wisest sages-- who may be enlightened by the vast range of ...

Article - David Brin - Dec 1 2012 - 8:15pm

Why We Can't Use Hubble To See The Lunar Lander- How Could We See It In High Resolution?

effects of humankind’s initial contact with the Moon" (quote from page 774 of this paper). See also ...

Article - Robert Walker - Sep 3 2017 - 7:40am

Will We Meet ET Microbes On Mars? Why We Should Care Deeply About Them- Like Tigers

would suggest convergent evolution, that such a small amount of contact between the two planets is ...

Article - Robert Walker - Dec 24 2016 - 10:59am

Self Replicating Robots- Safer For Galaxy (and Earth) Than Human Colonists- Is This Why ETs Didn't Colonize Earth?

mean its parent civilization probably is still in contact with it. SPATIAL LIMIT You could also design ...

Article - Robert Walker - Oct 29 2015 - 11:34am

Can Human Explorers Keep Mars Clean, For Science?

contacts the inside of the spacecraft. You crawl into the suit through a hole in its back. Two hatches are ...

Blog Post - Robert Walker - Jan 19 2014 - 11:09am

Can Spinning Habitats Solve Zero g Problem? And Answer Low g Questions?

humans in close orbit telepresence contact could greatly speed up exploration of Mars and new discoveries ...

Blog Post - Robert Walker - Oct 27 2015 - 8:33am

Will NASA's Sample Return Answer Mars Life Questions? Need For Comparison With In Situ Search

When Curiosity's successor and the ExoMars rover land on Mars around 2021, we will see two different approaches to the search for life on the planet side by side. NASA's mission is the first stage of a sample return program. The ESAs ExoMars rov ...

Article - Robert Walker - Apr 8 2016 - 5:21am

Why Are Hydrated Salts A Slam Dunk Case For Flowing Water On Mars? And What Next?

totally sterilized, just the part that needs to make contact with a habitable environment. But in ...

Article - Robert Walker - Feb 4 2017 - 9:46am