Physical Sciences

Seasons On Mars- How Do They Compare With Earth?

a near vacuum above the ice. Of all the many suggestions for liquid water on Mars, this is the only one ...

Article - Robert Walker - Mar 4 2016 - 11:04am

Why We Need A New Collider

the coupling of the Higgs particle to all known fermions and bosons (1% or lower) is not at reach of ...

Article - Tommaso Dorigo - Jan 1 2019 - 10:09pm

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

against a dark background of the night sky. It was a difficult observation all the same. They recorded all ...

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

Why The Moon Is By FAR The Best Place For A Backup- NOT Mars- To Protect And Restore Our Beautiful Earth

course, eventually, you would have more than one copy of all the seeds. the library, and other materials ...

Article - Robert Walker - Mar 31 2019 - 4:44pm

Could You See Moon City Lights Or A Greenhouse From Earth? Just For Fun

reflective, as there would be nothing for them to reflect. All in all, I don't think we have much chance ...

Article - Robert Walker - Dec 2 2015 - 11:30am

Can You Suggest A Second Earth Apart From Mars?

sustaining, if that can be done at all. So long as you can find some reason for Earth to support you. For more ...

Article - Robert Walker - Mar 3 2016 - 10:43pm

Might there be Microbes on the Surface of Mars?

experiment has remained controversial ever since. All the other Viking experiments ruled out life, but this ...

Blog Post - Robert Walker - Dec 24 2016 - 11:05am

Could Spinning Hammocks Keep Astronauts Healthy in Zero g?

hardly notice them at all. That's what I found, when I first tried this out. I could do ten or ...

Blog Post - Robert Walker - Aug 12 2019 - 10:09pm

Can Moons Have Moons? Or Rings?

out about why our Moon finds it hard keep any satellite at all, even just for a few years, and why an ...

Article - Robert Walker - Oct 5 2018 - 3:40pm

Four Things About Four Generations

construct capable of cataloging all known hadrons into simple structures, called multiplets. The first block ...

Article - Tommaso Dorigo - May 3 2009 - 5:34pm