News tagged with big bang

Earliest spiral galaxy ever seen: a shocking discovery

(Phys.org) -- Astronomers have witnessed for the first time a spiral galaxy in the early universe, billions of years before many other spiral galaxies formed. In findings reported July 19 in the journal Nature, the as ...

Jul 18, 2012
4.7 / 5 (40) 82 | with audio podcast

Big Bang under the microscope

(Phys.org)—Scientists have replaced the telescope with the microscope: Using the similarities between the structure of a crystal and the state of the cosmos in the early universe, they have explored a yet ...

Jan 03, 2013
3.9 / 5 (15) 22 | with audio podcast

When dark energy turned on (Update)

(PhysOrg.com) -- Some six billion light years distant, almost halfway from now back to the big bang, the universe was undergoing an elemental change. Held back until then by the mutual gravitational attraction ...

Mar 30, 2012
4.1 / 5 (20) 67 | with audio podcast

The older we get, the less we know (cosmologically)

(Phys.org) -- The universe is a marvelously complex place, filled with galaxies and larger-scale structures that have evolved over its 13.7-billion-year history. Those began as small perturbations of matter ...

May 22, 2012
3.4 / 5 (18) 14 | with audio podcast

Alien earths could form earlier than expected

(Phys.org) -- Building a terrestrial planet requires raw materials that weren't available in the early history of the universe. The Big Bang filled space with hydrogen and helium. Chemical elements like silicon ...

Jun 13, 2012
5 / 5 (6) 5 | with audio podcast

Stars reveal the secrets of looking young

Some people are in great shape at the age of 90, while others are decrepit before they're 50. We know that how fast people age is only loosely linked to how old they actually are—and may have more to do ...

Dec 19, 2012
5 / 5 (2) 15 | with audio podcast

Topological defects in the fabric of space and time

A cosmic string is a very long (possibly as long as the diameter of the visible universe), very thin (less than the width of a proton) high-density object formed during the early moments of the big bang. ...

Oct 10, 2014
3.1 / 5 (20) 14

Scientists glimpse universe before the Big Bang

(PhysOrg.com) -- In general, asking what happened before the Big Bang is not really considered a science question. According to Big Bang theory, time did not even exist before this point roughly 13.7 billion ...

Nov 23, 2010 weblog
4.7 / 5 (108) 174 | with audio podcast