Astronomy, Universe | featured news

New results from a look into the split second after the Big Bang indicate the universe is a bit older than previously thought but the core concepts of the cosmos - how it began, what it's made of and where it's going - seem to be on the right track....

The eXtreme Deep Field (XDF) focuses on a small patch of the constellation Fornax, containing some 5,500 galaxies. The image was culled from 10 years of photos of the same region of space shown in the Hubble Ultra Deep Field, which was last updated in 2009, based on data gathered in 2003 and 2004.

Imagine that the visible universe and everything in it was once contained in a volume many times smaller than the size of a single atom. With a quantum theory of gravity, we may be able to trace the Big Bang expansion back to its very beginning, and understand precisely how our universe arose, presumably from nothing.

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

Physicists investigating the make-up of the universe said on Wednesday they were closing in on the long-sought but elusive Higgs boson they believe was key to turning debris from the Big Bang into stars, planets and finally life.

Don’t get too close. Astronomers are reporting that they have taken the measure of the biggest, baddest black holes yet found in the universe, abyssal yawns 10 times the size of our solar system into which billions of Suns have vanished like a guilty thought. Such holes, they say, might be the gravitational cornerstones of galaxies and clues to the fates of the violent quasars, almost supernaturally powerful explosions in the hearts of young galaxies, that dominated the early years of the universe.

European astronomers report galaxies likely merged and churned out metal-rich stars, early in the universe. From 12 billion light years distance, the gamma ray burst, GRB 090323, was spotted by NASA satellites and then Earthly telescopes in 2009 (one light year equals 5.9 trillion miles). The blast appears to have originated in one galaxy and pierced another nearby on its way o Earth, report European Southern Observatory astronomers.

Science editor Alan Boyle's Weblog: The spiral galaxy NGC 3521 is a swirling maw of raw power, measuring 50,000 light-years across. So why on earth do astronomers call it "fluffy"?

Aliens could conceivably live on planets illuminated by the swirling mass of photons orbiting the singularity of a special type of black hole, according to a new theory.

Science editor Alan Boyle's Weblog: Is it preposterous to consider the existence of parallel universes? Or is it preposterous not to? Physicist Brian Greene would tend toward the latter view.