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Latest Astronomy Stories

coronal mass ejection
2014-09-26 03:00:31

Karen C. Fox, NASA's Goddard Space Flight Center Two main types of explosions occur on the sun: solar flares and coronal mass ejections. Unlike the energy and x-rays produced in a solar flare – which can reach Earth at the speed of light in eight minutes – coronal mass ejections are giant clouds of solar material that take one to three days to reach Earth. Once at Earth, these ejections, also called CMEs, can impact satellites in space or interfere with radio communications. During CME...

deceptive galaxy
2014-09-26 08:31:51

Georgia Bladon, Hubble/ESA Astronomers usually have to peer very far into the distance to see back in time, and view the Universe as it was when it was young. This new NASA/ESA Hubble Space Telescope image of galaxy DDO 68, otherwise known as UGC 5340, was thought to offer an exception. This ragged collection of stars and gas clouds looks at first glance like a recently-formed galaxy in our own cosmic neighborhood. But, is it really as young as it looks? Astronomers have studied...

2014-09-26 08:24:12

NEW YORK, Sept. 26, 2014 /PRNewswire/ -- Blackglama is pleased to unveil its newest advertising campaign, as the brand continues to evolve into fashion from celebrities. http://photos.prnewswire.com/prnvar/20140925/148473 Since the campaign's inception four decades ago, Blackglama has featured some of the world's most acclaimed entertainers, including Sophia Loren, Diana Ross, Audrey Hepburn, Lauren Bacall, Marlene Dietrich, Elizabeth Taylor, Lena Horne, Liza Minnelli and Janet...

water in our Solar System
2014-09-26 05:04:05

Chuck Bednar for redOrbit.com - Your Universe Online The water found on planet Earth predates the formation of the sun – a discovery that could have implications in the ongoing search for life on other planets, according to research appearing in Friday’s the journal Science. Scientists have long wondered whether the water found on our planet, in lunar craters and elsewhere originally came from ice ionized when the solar system was formed, or if it actually predated the solar system...

fireballs witnessed
2014-09-26 04:16:38

Chuck Bednar for redOrbit.com - Your Universe Online Approximately 150 people throughout the eastern half of the US reported witnessing four large fireballs traveling throughout the skies during a 24-hour period on Tuesday, various media outlets are reporting. According to Aaron Homer of the Inquisitor, a total of four separate unique events took place. The term ‘fireball’ is actually an unscientific term for a phenomenon created by a meteor, he explained. As the piece of dust or...

Artist’s impression of eclipsing binary
2014-09-25 03:00:54

Carnegie Institution New modeling studies from Carnegie’s Alan Boss demonstrate that most of the stars we see were formed when unstable clusters of newly formed protostars broke up. These protostars are born out of rotating clouds of dust and gas, which act as nurseries for star formation. Rare clusters of multiple protostars remain stable and mature into multi-star systems. The unstable ones will eject stars until they achieve stability and end up as single or binary stars. The work is...

fastest CME
2014-09-25 02:30:29

Karen C. Fox, NASA's Goddard Space Flight Center Two main types of explosions occur on the sun: solar flares and coronal mass ejections. Unlike the energy and X-rays produced in a solar flare – which can reach Earth at the speed of light in eight minutes – coronal mass ejections are giant clouds of solar material that take one to three days to reach Earth. Once at Earth, these ejections, also called CMEs, can impact satellites in space or interfere with radio communications. During CME...

June 10 Solar Flare
2014-09-25 03:00:52

Barbara Vonarburg, ETH Zurich Strong solar flares can bring down communications and power grids on Earth. By demonstrating how these gigantic eruptions are caused, ETH physicists are laying the foundations for future predictions. The shorter the interval between two explosions in the solar atmosphere, the more likely it is that the second flare will be stronger than the first one. ETH Professor Hans Jürgen Herrmann and his team have been able to demonstrate this, using model...

asteroid hunter Patrick Wiggins
2014-09-25 03:00:11

Lee J. Siegel, University of Utah What’s rocky, about a mile wide, orbits between Mars and Jupiter and poses no threat to Earth? An asteroid named “Univofutah” after the University of Utah. Discovered on Sept. 8, 2008, by longtime Utah astronomy educator Patrick Wiggins, the asteroid also known as 391795 (2008 RV77) this month was renamed Univofutah by the International Astronomical Union’s Minor Planet Center in Cambridge, Massachusetts. “It’s neat,” Wiggins says....

pluto debate
2014-09-25 05:51:31

Chuck Bednar for redOrbit.com - Your Universe Online Pluto may no longer be a planet in the eyes of the International Astronomical Union (IAU), but as a recent debate hosted by the Harvard-Smithsonian Center for Astrophysics (CfA) revealed, not everyone agrees with the official assessment that led to its 2006 demotion. “What is a planet? For generations of kids the answer was easy. A big ball of rock or gas that orbited our Sun, and there were nine of them in our solar system,” the...


Latest Astronomy 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...

Planetary Astronomy
2014-01-12 00:00:00

Image Caption: Artistic concept of a planetary system. Credit: Wikipedia/NASA/JPL-Caltech The term Astronomy encompasses a broad range of topics, including the study of stars, galaxies, and planets. In order to focus on the different areas of study, many subfields of astronomy emerge. One such area is the study of planets known, appropriately, as Planetary Astronomy. Observational Planetary Astronomy Even within the field of Planetary Astronomy, there are several divisions to...

Cosmology
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...

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...

Tropic of Capricorn
2013-02-21 13:31:57

The Tropic of Capricorn, alternately called the Southern Tropic, is a marker of the most southerly latitude on the Earth at which the Sun can be directly overhead. This occurs at the December solstice, when the southern hemisphere is tilted towards the sun at its maximum degree. It is one of the five major circles of latitude that mark maps of the Earth. It presently lies 23 degrees 26’ 16’’ south of the Equator. Currently, the Tropic of Capricorn is drifting towards the north at...

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Word of the Day
ramage
  • Boughs or branches.
  • Warbling of birds in trees.
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