Called the eXtreme Deep Field, or XDF, the photo was assembled by combining 10 years of NASA Hubble Space Telescope photographs taken of a patch of sky at the center of the original Hubble Ultra Deep Field. The XDF is a small fraction of the angular diameter of the full Moon. Image released September 25, 2012.
Nearly 14 billion years ago, there was nothing and nowhere. Then, due to a random fluctuation in a completely empty void, a universe exploded into existence. Something the size of a subatomic particle inflated to unimaginably huge size in a fraction of a second, driven apart by negative-pressure vacuum energy. Scientists call this theory for the origin of the universe the Big Bang.
A composite image of M51, called the Whirlpool Galaxy, 30 million light years from Earth and 60 thousand light years across. The original images were taken with a telescope at Kitt Peak National Observatory, and the Hubble Space Telescope. (Photo: NASA via The Telegraph)
Radical New Theory Says Other Universes Affect Our Own
Parallel universes have long been a staple of science fiction. But according to a radical new theory of quantum mechanics published Oct. 23 in the journal Physical Review X, other universes are real, and they exist in vast numbers. What's more, t...