Latest Astronomy Stories

Worldwide Contest To Name Exoplanets And Their Host Stars
2014-07-09 03:48:54

International Astronomical Union For the first time, in response to the public’s increased interest in being part of discoveries in astronomy, the International Astronomical Union (IAU) is organizing a worldwide contest to give popular names to selected exoplanets along with their host stars. The proposed names will be submitted by astronomy clubs and non-profit organizations interested in astronomy, and votes will be cast by the public from across the world through the web platform...

summer flare
2014-07-09 04:00:48

Karen C. Fox, NASA's Goddard Space Flight Center The sun emitted a mid-level solar flare, peaking at 12:20 p.m. EDT on July 8, 2014, and NASA's Solar Dynamics Observatory captured images of the event. 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. To see...

Ganymede and Jupiter
2014-07-09 05:38:47

April Flowers for redOrbit.com - Your Universe Online Jupiter's moon Ganymede is the largest satellite in our solar system, approximately three-quarters the size of Mars. Ganymede has two types of terrain on the surface: highly cratered dark regions comprising nearly 40 percent of the surface, with the rest being lightly grooved in intricate patterns. A new study, led by researchers with the Southwest Research Institute (SwRI), reveals that the processes which shaped these ridges and...

intergalactic hydrogen
2014-07-09 04:31:10

redOrbit Staff & Wire Reports - Your Universe Online The amount of light originating from known populations of galaxies and quasars is far less than the amount required to explain the amount of hydrogen that helps bridge empty spaces between galaxies, according to research appearing in a recent edition of The Astrophysical Journal Letters. In fact, as lead author Juna Kollmeier of the Carnegie Institution for Science and her colleagues explained in a statement Tuesday, the...

Outburst From Second Brightest Star Modeled In Three Dimensions
2014-07-08 14:25:58

[ Watch the Video: Creating The First 3d Model Of Eta Carinae Nebula ] Gerard LeBlond for redOrbit.com - Your Universe Online In the mid-1800s a massive eruption occurred in the binary Eta Carinae, emitting 10 times the sun’s mass and becoming the second brightest star in the sky. Astronomers have developed a high-resolution 3D model of the expanding cloud produced by the outburst, according to NASA. The study team consisted of Thomas Madura from NASA’s Goddard Space Flight...

New Evidence Suggests Mercury Was Formed From A Stellar Collision
2014-07-08 10:50:50

Gerard LeBlond for redOrbit.com - Your Universe Online Planet Mercury has an unusual metal-rich composition which has baffled the scientific community. However, new evidence may have solved this mystery. According to a new study published online in Nature Geoscience on July 6, Mercury along with other space objects in the solar system with an unusual metal-rich composition, may be left over from stellar hit-and-run collisions in the early formation of the solar system. The...

2014-07-08 08:33:30

Advanced Plater Serves Emerging Technologies - Cuts Cost in Half SAN FRANCISCO, July 8, 2014 /PRNewswire/ -- ClassOne Technology today announced its new Solstice(TM) line of electroplating tools. Described as "advanced plating for the rest of us," Solstice is designed specifically for the smaller-substrate users in emerging technologies such as MEMs, LEDs, Power Devices, RF Communications, Interposers, Photonics and Microfluidics. Solstice aims to set new standards for plating...

Solving The Long-standing Mystery Surrounding The Evolution Of Galaxies
2014-07-08 03:29:57

[ Watch The Video: A Simulated Dwarf Galaxy 800 Million Years After The Big Bang ] The University of Sheffield New research by academics at the University of Sheffield has solved a long-standing mystery surrounding the evolution of galaxies, deepening our understanding of the future of the Milky Way. The supermassive black holes in the cores of some galaxies drive massive outflows of molecular hydrogen gas. As a result, most of the cold gas is expelled from the galaxies. Since...

Voyager 1 Entering Interstellar Space
2014-07-08 03:45:14

redOrbit Staff & Wire Reports - Your Universe Online A new “tsunami wave” generated by the sun has helped NASA scientists confirm that Voyager 1 is currently traveling through interstellar space, or the area between the stars that is filled with charged particles known as plasma, the US space agency reported on Monday. Waves like these are what initially led astronomers to conclude that the spacecraft had escaped the magnetic bubble surrounding the sun and planets known as the...

milky way simulation
2014-07-07 07:13:31

Royal Astronomical Society (RAS) Astronomers investigating behavior of the universe shortly after the Big Bang have made a surprising discovery: the properties of the early universe are determined by the smallest galaxies. The team report their findings in a paper published today in the journal Monthly Notices of the Royal Astronomical Society. Shortly after the Big Bang, the universe was ionized: ordinary matter consisted of hydrogen with its positively charged protons stripped of...

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...

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

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
  • The hard inner (usually woody) layer of the pericarp of some fruits (as peaches or plums or cherries or olives) that contains the seed.
This word comes from the Greek 'endon,' in, within, plus the Greek 'karpos', fruit.