Month: April 2020

Can we harness wind energy without land-based turbines?

This question becomes important as land turbines are fought more and more violently by local communities with green association leading. If this energy is not green, we need to find another one. Is this an option?
 

Image from ESA

Posted by Fabrice Stephan

How long can we live in confinement ?

A long time when we look at the results of the MARS500 experiment. An article + a video to truly understand what a trip to Mars means, something we will understand differently in these confinement days !
http://www.esa.int/ESA_Multimedia/Videos/2020/04/Mars_confinement_tips
Posted by Fabrice Stephan in research

Disappointed by Giant planets ?

…because we’ll never live on them
 
Well, here is an Earth-size planet. Still not sure it’s the right fit for us as it orbits a dwarf sun and may not receive enough light. but maybe it is. And it’s a bare 300 light years away …
https://www.nasa.gov/press-release/earth-size-habitable-zone-planet-found-hidden-in-early-nasa-kepler-data

Credits: NASA/Ames Research Center/Daniel Rutter

Posted by Fabrice Stephan in research

Interesting newsletter

Can I recommend this excellent newsletter ?

  • the interview of a very interesting author
  • a series of new release (including space station acheron)
  • and a short story

This is a quick but dense read. Go and have a look

Posted by Fabrice Stephan in Human Starpilots

The universe expands differently depending on where you are …

Go and have a look. This is huge! Maybe even where you are, you who reads this, wherever you are on Earth.


https://www.space.com/universe-expansion-rate-may-vary.html

The HMS Explorer accelerated to one c, his crew sleeping deeply, each in his own cryogenic coffin. They cruised at that speed following the curvature of the universe. The theory was simple. They would return to their point and time of origin. It would take an infinite time and no time at all, relativistic speed helping. But maybe to a better point of origin. Earth was failing so fast now. No humans would survive another century.

They cruised and cruised. A few died when their cryogenic coffins malfunctioned. But all in all, four hundred awoke when the ship braked out of one c. Earth was in front of them, where they had expected it. But no communications came. No radio signal. No electromagnetic wavelength. They took their shuttles and landed, discovering homo neandertalis at the peak of his society.

Universe was not homogenous. Curvature and speed had brought them back. But not to their point of origin. So, well, they settled the land. Again. Hoping for the best.

Posted by Fabrice Stephan in Short stories

Small is beautiful

Do you think small is beautiful ? Here is the new challenge from NASA “Honey, I shrunk the NASA Payload.” Up to it ? Go and get it into the challenge !
 

Source : Nasa

Posted by Fabrice Stephan in research