Latest Universe Stories

Dark Energy Theory Challenged
2013-01-10 09:15:38

[ Listen to the Podcast “The Search For Dark Energy” ] redOrbit Staff & Wire Reports - Your Universe Online A popular theory that relies on dark energy, thought to be the main contributor to the accelerating expansion of the Universe does not fit newly obtained data with regards to one fundamental constant — the proton to electron mass ratio. Rodger Thompson, a University of Arizona astronomy professor, disclosed his findings Wednesday at the American...

Top Science Stories of 2012
2012-12-27 07:16:59

John P. Millis, Ph.D. for redOrbit.com — Your Universe Online Every December the online world is replete with Top 10 lists, reminding us of the year´s best sports plays, TV moments, and blockbuster movies. These articles have become so popular, in fact, that many outlets publish their Best of the Year pieces months before the end of the year. Which is awfully presumptive. Most troubling, though, is that many of these types of articles lack any real content — nothing...

WMAP Final Results Released
2012-12-22 05:47:09

redOrbit Staff & Wire Reports - Your Universe Online The researchers in charge of an award-winning space mission that set out to collect fundamental measurements of the universe have announced they will be releasing their final results after nearly a decade of work. The Wilkinson Microwave Anisotropy Probe (WMAP), which was launched in June 2001, has collected data that has "revolutionized our view of the universe, establishing a cosmological model that explains a widely diverse...

Star Clusters Can Look Younger Than They Are
2012-12-19 13:46:31

Lee Rannals for redOrbit.com - Your Universe Online Just as your lifestyle can cause you to show your age, the same is true for star clusters, according to a study published in the journal Nature. Astronomers using the Hubble Space Telescope have found that some globular clusters are still young at heart, despite being relics of the early Universe. Globular clusters are spherical collections of stars that are held tightly together by their mutual gravitational attraction....

Researchers Disprove Pulsar Glitch Theory
2012-12-18 16:21:44

Lee Rannals for redOrbit.com — Your Universe Online Researchers reported in the journal Physical Review Letters that they have found a "glitch" in a 40-year-old theory explaining the periodic speeding up or "glitching" of pulsars. Pulsars emit a rotating beam of electromagnetic radiation, which can be detected by powerful telescopes once it sweeps past the Earth. The cosmic objects, which are highly magnetized rotating neutron stars formed from the remains of supernovae, rotate...

the search for dark energy
2012-12-13 09:22:27

John P. Millis, Ph.D. for redOrbit.com — Your Universe Online Starting in early 2013 redOrbit will be launching a new podcast series called Your Universe Today, where we interview leading scientists about cutting-edge research in everything from space travel to the origins of our Universe. But we´re in the holiday spirit and couldn´t wait until January to unveil our new podcast project, so we´ve decided to give you a sneak peak of what´s to come. In the...

First Stars Born Short 750 Million Years After The Big Bang
2012-12-06 12:30:42

April Flowers for redOrbit.com - Your Universe Online The universe has had traces of heavy elements such as carbon and oxygen as far back in time as astronomers have been able to see. Elements such as these were originally churned from the explosion of massive stars. They formed the building blocks for planetary bodies, and eventually for life on Earth. Peering back far in time, a research team from MIT, Caltech, and the University of California at San Diego (UCSD) found matter...

How Do Wide Binary Stars Form
2012-12-05 13:48:14

Lee Rannals for redOrbit.com - Your Universe Online Scientists have reported in the journal Nature that they have figured out by using computer simulations how wide binary stars are able to form. Wide binary stars are two stars that orbit each other at a distance up to a light year. Some binary stars can be very close, while other pairs are extremely far apart. Astronomers have known about wide binary pairs for a long time, but how they form has remained a mystery. Now, astronomers...

Scientists Offer New Insights Into Early Universe
2012-11-29 15:54:22

Lee Rannals for redOrbit.com — Your Universe Online Penn State University scientists using techniques from modern physics have developed a new understanding of the earliest eras in the history of the universe. The scientists now have an extended analyses that include quantum physics farther back in time than ever before, heading back to the very beginning. The new paradigm of loop quantum origins show that the large-scale structures we see in the universe evolved from...

Latest Universe Reference Libraries

2014-01-12 00:00:00

Image Caption: The Hubble Extreme Deep Field (XDF) was completed in September 2012 and shows the farthest galaxies ever photographed by humans. Each speck of light in the photo is an individual galaxy, some of them as old as 13.2 billion years; the observable universe is estimated to contain more than 200 billion galaxies. Credit: NASA/Wikipedia What is Cosmology? I once commented to an acquaintance that I was fascinated by the field of Cosmology, and mused that if I had more time, I...

2014-01-12 00:00:00

Physics is a natural science involving the study of matter and its motion through space-time, along with related concepts such as energy and force. On a broader scale, it also involves the general analysis of nature, conducted in order to understand how the universe behaves. Physics is one of the oldest academic disciplines, perhaps the oldest through its inclusion of astronomy. Physics was part of natural philosophy until the Scientific Revolution in the 16th century, when the natural...

2004-10-19 04:45:44

Lyra Constellation -- Lyra (the lyre) is a prominent, although fairly small, northern constellation. It was one of Ptolemy's 48 constellations, and also counts among the modern 88 constellations. Its brightest star is Vega (Alpha Lyrae), which together with Altair (Alpha Aquilae) and Deneb (Alpha Cygni) forms the large asterism known as the Summer Triangle. Beta Lyr is a half separated (i.e. one of the stars reached its Rochevolume) eclipsing binary of a cream-white colour. The...

2004-10-19 04:45:44

Cygnus Constellation -- Cygnus (the swan) is a northern constellation. It was one of Ptolemy's 48 constellations, and is also one of the 88 modern constellations. Because of the pattern of its main stars, it is sometimes called the Northern Cross (in contrast to the Southern Cross). The bird extends over the summer Milky Way, appearing to fly south. Notable features Cygnus contains several bright stars. Deneb, α Cygni, is an extremely brilliant star, very prominent despite...

2004-10-19 04:45:44

Centaurus Constellation -- Centaurus (the centaur) was one of the 48 constellations listed by Ptolemy, and counts also among the 88 modern constellations. A constellation of the southern hemisphere, mentioned by Eudoxus (4th century B.C.) and Aratus (3rd century B.C.), Ptolemy catalogued thirty-seven stars in it. It contains Proxima Centauri, the red dwarf that is the nearest known star (other than the Sun) to Earth, as well as Alpha Centauri, which is a double star to which Proxima...

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Word of the Day
  • A fool; a simpleton: a term of abuse common in Ireland and to a less extent in the Gaelic-speaking parts of Scotland.
This word is partly Irish in origin.