Archive: January 22, 2016

<<< January 21, 2016

Home

January 23, 2016 >>>


possible undiscovered planets

Friday,  01/22/16  09:01 PM

The inimitable and most useful xkcd weighs in on possible undiscovered planets:

excellent
makes clear the relationship between a planet's size and distance, and our ability to find them
I love that the distance scales go down to "birds that got into my house"

 

 

To Scale: the Solar System

Friday,  01/22/16  09:39 PM

A perfect video to accompany the preceding post about possible undiscovered planets,
To Scale: the Solar System

On a dry lakebed in Nevada, a group of friends build the first scale model of the solar system
with complete planetary orbits: a true illustration of our place in the universe.

The new Planet Nine discovered by Caltech researchers would not have fit in this desert
as it is 20 times further from the Sun than Neptune
or about 140 miles at this scale
WOW

 

 
 

Return to the archive.