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Latest Astrophysics Stories

Violent Youth Seeded The Universe With Iron
2013-10-31 05:07:20

April Flowers for redOrbit.com - Your Universe Online The universe underwent a turbulent and violent youth more than 10 billion years ago, as evidenced by iron spread evenly between galaxies in one of the largest galaxy clusters in the Universe. This violent youth was responsible for seeding the cosmos with iron and other heavy elements that are critical to life itself, according to the new study published in Nature. Scientists from the Kavli Institute for Particle Astrophysics and...

Sun Produces Fourth X-class Flare In A Week
2013-10-30 11:04:01

NASA The sun emitted a significant solar flare – its fourth X-class flare since Oct. 23, 2013 -- peaking at 5:54 p.m. on Oct. 29, 2013. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect humans on the ground, however -- when intense enough -- they can disturb the atmosphere in the layer where GPS and communications signals travel. This disrupts the radio signals for as long as the flare is ongoing,...

Third Solar Flare Emitted By The Sun In Two Days
2013-10-25 12:12:19

NASA [ Watch The Video: Experimental NASA Research Model of Path for Oct. 22-23 CMEs ] The M9.4 flare on Oct. 23, 2013, was associated with a coronal mass ejection or CME, a solar phenomenon that can send billions of tons of particles into space that can reach Earth one to three days later. These particles cannot travel through the atmosphere to harm humans on Earth, but they can affect electronic systems in satellites and on the ground. Another solar flare erupted from the same area...

Coldest Known Object In Space Reveals Its Ghostly Figure
2013-10-25 06:25:12

April Flowers for redOrbit.com - Your Universe Online The Boomerang Nebula, at a crisp one degree Kelvin (-458 degrees Fahrenheit), is the coldest known object in the Universe. In fact, the Boomerang Nebula is colder than the faint afterglow of the Big Bang, which is the natural background temperature of space. To learn more about this intriguing object, a team of astronomers used the Atacama Large Millimeter/submillimeter Array (ALMA) telescope to investigate its frigid properties and...

Molecular Cloud Explains Star Formation
2013-10-22 12:16:19

Brett Smith for redOrbit.com - Your Universe Online The molecular clouds that float about the universe hold the ingredients for star formation, and a new study from researchers at University of California, San Diego has confirmed the mechanics behind three observed relationships describing the internal forces acting within these clouds, called Larson’s Laws. First postulated in 1981 by Richard Larson, a professor of astronomy at Yale, Larson's Laws detail the observation-based...

Astronomers Use Gravitational Lensing To Weigh Most Distant Galaxy
2013-10-17 14:57:54

Lee Rannals for redOrbit.com - Your Universe Online Using a gravitational lensing technique, astronomers were able to weigh one of the most distant galaxies in the universe. Gravitational lensing is a technique used by astronomers that was first predicted by Albert Einstein's theory of relativity. As light from a very distant object moves through the universe, it can essentially be intensified by another object that is closer to Earth, reviving the light and making it possible for...

Virtual Observatory Study Explains How Black Holes Get So Massive
2013-10-17 12:57:02

Lee Rannals for redOrbit.com - Your Universe Online Astronomers using a "Virtual Observatory" set out to study "fat" black holes that grow up to more than one million solar masses. Some massive black holes are observed as active galactic nuclei (AGN), which attract surrounding gas and release huge amounts of energy. The team collected the data on more than 10,000 AGN whose black hole mass had already been measured by spectroscopic observation. Scientists have wondered exactly how a...

Largest Known Star Self Destructs
2013-10-16 12:49:05

Lee Rannals for redOrbit.com - Your Universe Online A group of international scientists have been observing as the largest known star in the Universe tears itself apart. Astronomers from the UK, Chile, Germany and the US have watched as W26 in the Westerlund 1 star cluster shed its outer layers and flings a huge cloud of glowing hydrogen gas out to return enriched material back to the interstellar medium. The latest observation, reported in the journal Monthly Notices of the Royal...

2013-10-16 11:31:12

Drs. Michael Hahn and Daniel Wolf Savin, research scientists at Columbia University's Astrophysics Laboratory in New York, NY, found evidence that magnetic waves in a polar coronal hole contain enough energy to heat the corona and moreover that they also deposit most of their energy at sufficiently low heights for the heat to spread throughout the corona. The observations help to answer a 70-year-old solar physics conundrum about the unexplained extreme temperature of the Sun's corona –...

detailed image toby jug nebula
2013-10-09 10:49:21

[ Watch The Video: Zooming In On To The Toby Jug Nebula ] Lee Rannals for redOrbit.com - Your Universe Online ESO astronomers using the European Souther Observatory's (ESO) Very Large Telescope (VLT) reported today that they have captured a detailed image of the Toby Jug Nebula. The nebula featured in the latest ESO image is a cloud of gas and dust surrounding a red giant star. The image shows the characteristic arc structure of the nebula resembles a jug with a handle. The Toby Jug...


Latest Astrophysics Reference Libraries

Stellar Astrophysics
2014-01-12 00:00:00

The prominent feature that allows for the existence of life on Earth is the Sun. Radiation from our closest star provides heat and energy to our planet, driving biological processes and providing the necessary conditions for liquid water to naturally exist. But our Sun is only but one star in this vast Universe. And as it turns out, most stars are quite different than the one that illuminates our day. For this reason, scientists have, for hundreds of years, attempted to study the other...

Astrophysics
2014-01-12 00:00:00

Image Caption: NGC 4414, a typical spiral galaxy in the constellation Coma Berenices, is about 56,000 light-years in diameter and approximately 60 million light-years distant. Credit: NASA/ESA/Wikipedia What is Astrophysics? For much of the modern age the term Astrophysics has been used synonymously with Astronomy. This interchange is so common that many textbooks even offer the two as having the same meaning. However, from a strictly historical perspective there are differences...

How Solar Cycles Impact Our Weather Here On Earth
2013-01-13 09:10:34

Solar cycles: what are they and why should we care about them? Solar cycles are made up of what are known as solar minimums (min) and solar maximums (max). We refer to a solar min at the time when the sun is not active with many sunspots, while a solar max is just the opposite when we see a large increase in sunspot activity. So how long do solar cycles last? Typically they run on what is known as an 11 year cycle from the max to the min and then start over again anew. As of 2012 we...

Physics
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...

Astronomy and Astrophysics Review
2012-04-25 09:55:47

The Astronomy and Astrophysics Review is a peer-reviewed scientific journal published quarterly by Springer Science Business Media. The editor-in-chief is Thierry Courvoisier. It was first published in April 1989. The journal covers all areas of astronomy and astrophysics, including cosmic ray physics, studies in the solar system, astrobiology, developments in laboratory or particle physics relevant to astronomy, instrumentation, computational or statistical methods with specific...

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Word of the Day
glogg
  • Scandinavian punch made of claret and aquavit with spices and raisins and orange peel and sugar.
This word comes from the Swedish 'glogg,' which is an alteration of 'glodgat,' mulled (wine).
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