From dark energy and string theory to the end of the Universe, these are the unanswered cosmic conundra that are still baffling scientists.
Comparing Sizes of the Largest Objects in the known universe - Take a journey through the cosmos, and see some of the largest objects that we've discovered.
My theory, from my experience. Take it with a grain of salt or however you wish. This is how something can come out of “nothing”...
Carson Dellosa Mark Twain The Atom Chart (5912) Carson-Dellosa,http://www.amazon.com/dp/B007BFRV1S/ref=cm_sw_r_pi_dp_4Y9ftb0CFB1AS43W
Space may seem simple, but the forces of nature studied in Physics are always present.
Albert Einstein proposed that matter curves space-time, and that gravity is the curve that causes objects to deviate from traveling a straight line. The distortion causes the objects that were moving along a flat plane to fall into a spherical path.
According to Einstein's General Theory of Relativity, matter bends the fabric of space and time.
How to Tell Star Types Apart (Infographic) by Karl Tate, Infographics Artist : Astronomers group stars into classes according to spectral color and brightness.
Doc. RNDr. Petr Kulhánek, CSc, FEL ČVUT, Astrofyzika 02 - YouTube
Doc. RNDr. Petr Kulhánek, CSc, FEL ČVUT, Astrofyzika 03 - YouTube