Atom & Cosmos

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GRAVITY'S CENTURY  Einstein's general theory of relativity, published in November 1915, describes gravity as the warping of spacetime by masses such as the Earth and moon. 

subatomic particles captured in Brookhaven collider

The 20th century brought many surprising discoveries about the subatomic realm, including that there are many, many types of subatomic particles, some of which are seen above in the aftermath of gold ion collisions at Brookhaven National Laboratory's Relativistic Heavy Ion Collider.

McDonald and Kajita

NEUTRINO NOBEL  Arthur McDonald (left) and Takaaki Kajita shared the Nobel Prize in physics for the discovery that neutrinos oscillate between different types, which demonstrates that the particles have mass.

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