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Latest Observational astronomy Stories

Scientists Discover New Submillimeter Galaxy
2012-06-23 04:56:58

Using an array of radio telescopes, researchers from Europe and Japan have discovered a submillimeter galaxy -- a type of galaxy that has intense star formation activity and is covered by large amounts of dust -- located approximately 12.4 billion light-years away. The international team of experts, which was led by Kyoto University Associate Professor Tohru Nagao, used the Atacama Large Millimeter/submillimeter Array (ALMA) in southern Chile to locate the galaxy, the researchers announced...

NuSTAR To Help Scientists Solve Supernova Explosion Mystery
2012-06-18 04:01:37

[ Watch the Video ] Somewhere in the Milky Way, a massive old star is about to die a spectacular death. As its nuclear fuel runs out, the star begins to collapse under its own tremendous weight. Crushing pressure triggers new nuclear reactions, setting the stage for a terrifying blast. And then... nothing happens. At least that's what supercomputers have been telling astrophysicists for decades. Many of the best computer models of supernovas fail to produce an explosion. At the end of...

2012-06-14 12:30:05

A team of researchers has developed a new microscope that can image the elemental and magnetic properties of a wide range of energy-important materials that are used in devices such as solar cells and solid-state lighting. The imager is based on a technique known as X-ray excited luminescence microscopy (XELM). It was created by hitching a standard optical microscope to a synchrotron X-ray source. Synchrotrons produce X-rays and other forms of electromagnetic radiation by sending electrons...

High-contrast, High-resolution CT Scans Possible At Low Dose
2012-06-05 06:55:54

Soft body tissue can now be imaged with incredible detail using X-rays thanks to a new low dose CT-scan technique Scientists have developed an X-ray imaging method that could drastically improve the contrast of computed tomography (CT) scans whilst reducing the radiation dose deposited during the scan. The new method is based on the combination of the high contrast obtained by an X-ray technique known as grating interferometry with the three-dimensional capabilities of CT. It is also...

Black Hole Caught Exiting Host Galaxy
2012-06-05 04:22:57

Lee Rannals for redOrbit.com New observations from NASA's Chandra X-ray Observatory suggest that a black hole is being ejected from its host galaxy at several million miles per hour. The finding could mean that there are many giant black holes that are roaming around undetected out in the vast spaces between galaxies. "It's hard to believe that a supermassive black hole weighing millions of times the mass of the sun could be moved at all, let alone kicked out of a galaxy at enormous...

NRO Gives NASA Two Hubble Sized Telescopes
2012-06-05 04:15:46

Lee Rannals for redOrbit.com The National Reconnaissance Office (NRO) announced on Monday that it will be giving two telescopes as big as the Hubble Space Telescope to NASA. The 7.9-feet mirror telescopes have 100 times the field of view of the Hubble, according to David Spergel, a Princeton astrophysicist and co-chair of the National Academies advisory panel on astronomy and astrophysics. If used as originally intended, NASA official Michael Moore told the Washington Post that the...

A deep look at the strange galaxy Centaurus A
2012-06-02 11:53:03

A new image of the center of the distinctive galaxy Centaurus A, made with the Atacama Large Millimeter/submillimeter Array (ALMA), shows how the new telescope, which is still under construction, allows astronomers to see with unprecedented quality through the opaque dust lanes that obscure the galaxy's center. Centaurus A is a massive elliptical radio galaxy (a galaxy that emits strong radio waves) and is the most prominent, as well as the nearest, radio galaxy in the sky. Its very...

Giant Radio Telescope Gets Two Different Locations
2012-05-26 04:31:25

Lee Rannals for RedOrbit.com Australia and South Africa will host a giant radio telescope made up of thousands of separate dishes, which will help scientists gain a better understanding of our universe. South Africa and Australia both battled for bidding for the Square Kilometre Array (SKA) telescope project, but South Africa came away with a victory by capturing two parts of the three-part project. "We may feel slightly disappointed that we didn't get the whole thing. But I think...

Tiny Planet-Finding Mirrors Borrow From Webb's Playbook
2012-05-25 03:33:19

NASA's next flagship mission – the James Webb Space Telescope – will carry the largest primary mirror ever deployed. This segmented behemoth will unfold to 21.3 feet in diameter once the observatory reaches its orbit in 2018. A team of scientists at NASA's Goddard Space Flight Center in Greenbelt, Md., now is developing an instrument that would image and characterize planets beyond the solar system possibly from a high-altitude balloon has borrowed a page from the Webb...

Street Lights Affect Delicate Ecosystems
2012-05-24 04:26:42

Brett Smith for RedOrbit.com Civilization has long been derided for intruding upon the habitats of wild animals, and even man´s smaller neighbors have been affected by the wheels of progress. Another measure of this impact can be seen in how street lighting is having a transformative effect on communities of insects and other invertebrates living near them, according to researchers at the University of Exeter in the United Kingdom. A report published in Biology Letters showed...


Latest Observational astronomy Reference Libraries

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...

45_894c6a813094d5c55029fadb762d4d57
2010-10-08 17:45:24

Radio telescopes, used in tracking and collecting data from satellites and space probes, are a form of directional radio antenna used in radio astronomy. They operate on the radio frequency portion of the electromagnetic spectrum where they detect radio sources. Radio telescopes are large parabolic antennas used singly or in an array and are located far from major centers of population in order to avoid electromagnetic interference. Karl Guthe Jansky built the first radio antenna used to...

0_035f33139a46eac03f7b1ef5a5cd27be
2010-09-24 17:50:57

A telescope, designed to aid the observation of remote objects, collects some form of electromagnetic radiation (such as visible light). The Netherlands developed the first known practical telescope in the 17th century. The term "telescope" was termed in order to describe Galileo's instruments in 1611. However, Galileo was not the inventor of the telescope. It was Hans Lippershey, Zacharias Janssen, and Jacob Metius who are credited with the creation of the telescope. In 1668, Isaac Newton...

45_b90d45a4e7d89d873d39705549e516ce
2014-01-12 00:00:00

Sample Entry: Astronomy is the scientific study of stars, planets, comets, galaxies, and other phenomena that occur outside Earth's atmosphere (e.g. cosmic radiation). Astronomy deals with the evolution, physics, chemical makeup, meteorology, and motion of celestial objects, and also the formation of the universe. The word Astronomy comes from the Greek words astron (meaning "star") and nomos (meaning "law"). Astronomy is one of the oldest sciences. Since the dawn of man, people always...

0_140be4f8b9e91033cecf670093b7e642
2009-04-28 11:47:36

The Reverend Thomas William Webb (December 14, 1807 "“ May 19, 1885) was a British astronomer and faithful clergyman. The lone son of a clergyman, the Rev. John Webb was raised and educated by his father in absence of his mother who died in Webb's early childhood. He travelled to Oxford to attend Magdalen College. Soon after, he was ordained a minister by the Anglican Church in 1829. In 1843, he married Henrietta Montague. Mrs. Webb died on September 7, 1884. Webb followed shortly...

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Word of the Day
drawcansir
  • A blustering, bullying fellow; a pot-valiant braggart; a bully.
This word is named for Draw-Can-Sir, a character in George Villiers' 17th century play The Rehearsal.
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