About Planets

When the video first started I thought that Pluto was a good size, then it kept showing bigger planets and when it got to Earth I was thinking we were huge! Then, it kept going and going and the Sun was way bigger then I imagined. If you compare Pluto to the Sun it's like comparing a pea to a bowling ball. I never knew there were stars or planets bigger then the sun. VV Cephei is HUGE! It's the largest star, and it's gigantic!

Ray Davis/John Bahcall

-Discovered the solar-neutrino anomaly

http://cerncourier.com/cws/article/cern/29699

S. Chandrasekhar

(1910-1995)

-Developed the theory of white dwarf stars, showing that quantum mechanical degeneracy pressure cannot stabilize a massive star.

http://www.phys-astro.sonoma.edu/bruceMedalists/Chandrasekhar/index.html

Arno Penzias/Robert Wilson

(1933-curent)

(1936-current)

-American physicists Arno Allan Penzias and Robert Woodrow detected a persistent signal that they could not explain

-Discovered faint cosmic radiation from the farthest reaches of known space.

Annie Cannon

(1863-1941)

-She applied yet a third scheme, derived from Fleming's and Maury's, an "arbitrary" division of stars into the spectral classes O, B, A, F, G, K, M, and so on

-Cannon also published catalogs of variable stars (including 300 she discovered)

http://www.sdsc.edu/ScienceWomen/cannon.html

Clyde Tombaugh

(1906-1997)

-Discovered Pluto

-Discovered a comet, 5 open clusters, a globular cluster, a supercluster of galaxies stretching from Andromeda to Perseus.

http://www.icstars.com/HTML/icstars/graphics/clyde.htm

Johannes Kepler

(1571-1630)

-Kepler published the seven-volume Epitome Astronomiae in 1621.

-He then went on to complete the Rudolphine Tables that Tycho had started long ago.

http://kepler.nasa.gov/johannes/

Albert Einstein

(1879-1955)

-Developed the Special and General Theories of Relativity which along with Quantum Mechanics is the foundation of modern physics.

http://space.about.com/od/glossaries/g/alberteinstein.htm

Edwin Hubble

(1889-1953)

-Took many photographs of Cepheid variables through 100 inch reflecting Hooker telescope, proving they were outside our galaxy, and determining the existence of several other galaxies such as our own milky way.

http://www.edwinhubble.com/hubble_bio_001.htm