Tags » Observable Universe

The size of the observable universe is complicated.

The radius of the observable universe is often stated to be 46 billion light years.  From a certain point of view, this is true, but I think it’s a bit of a misleading statement.   1,075 more words


10 Enormous Numbers

One of the first questions that kids often ask is “What is the biggest number?” This question is an important step in transitioning to a world of abstract concepts. 1,700 more words


The Unexplainable Universe

The universe, as credited to Wikipedia

Ever lay on your back on a summer night, looking up at the sky and think to yourself, “Where does it all end?” 399 more words

Science Fiction

If Star WarsVII were truly to communicate a real vision of our scientific potentials, an extraordinary intellectual revolution would commence.


Our most-entrepreneurial space cadets — Richard Branson, Elon Musk, Paul Allen, and Jeff Bezos — are truly leading the way… 514 more words