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Latest Observational astronomy Stories

X-ray Signal Detected During Black Hole's Destruction Of Passing Star
2012-08-03 15:48:00

[Watch Video] Lee Rannals for redOrbit.com — Your Universe Online Astronomers have identified an X-ray signal that followed an observation made last year of a quiescent black hole in a distant galaxy. The black hole discovered by the team last year was seen erupting after shredding and consuming a passing star. Astronomers then witnessed days following the observation a distinctive X-ray signal that comes from matter on the verge of falling into the black hole. This...

Scotch Tape Inspires X-ray Telescope Design
2012-07-27 11:57:46

Lee Rannals for redOrbit.com - Your Universe Online While some find it as the source of inspiration for wrapping gifts, Scotch tape inspired one scientist at NASA to build a special X-ray mirror. NASA scientist Maxim Markevitch and a team of X-ray optics experts at the space agency's Goddard Space Flight Center are looking into the feasibility of creating a low-cost mirror out of plastic tape. "I remember looking at a roll of Scotch tape and thinking, 'was it possible to use the same...

Jansky Very Large Array Achieves First Light
2012-07-22 07:59:27

redOrbit Staff & Wire Reports - Your Universe Online Researchers with the U.S. Naval Research Laboratory (NRL) and the National Radio Astronomy Observatory (NRAO) in New Mexico announced Friday that they had successfully achieved "first light" at low frequencies using the Jansky Very Large Array (JVLA) radio astronomy telescope. Using five of the JVLA's 27 230-ton, 25-meter diameter very high-frequency (VHF) dish antennas, NRAO astronomer Dr. Frazer Owen was able to map the radio...

Quasar Revealed In Unprecedented Detail
2012-07-18 05:13:54

[ Watch Video 1 ] | [ Watch Video 2 ] | Watch Video 3 ] Lee Rannals for redOrbit.com - Your Universe Online Astronomers have made a crucial step towards a scientific goal by observing the heart of a distant quasar with angular resolution. An international team of astronomers connected radio telescopes in Chile, Hawaii and Arizona for the first time using the technique of Very Long Baseline Interferometry (VLBI), enabling them to make the sharpest observation ever of the center of a...

space-070612-004
2012-07-06 12:37:40

Lee Rannals for redOrbit.com - Your Universe Online Astronomers have spotted the first known "middleweight" black hole, according to a publication in Science Express. The black hole was found with a CSIRO radio telescope in a galaxy called ESO 243-49, which is about 300 million light-years away. Before the black hole was found, astronomers had only known of supermassive black holes and "stellar mass" ones. "This is the first object that we're really sure is an intermediate-mass...

2012-07-05 02:21:05

MOUNTAIN VIEW, Calif., July 5, 2012 /PRNewswire/ -- Los Gatos Research (LGR), the leader in precision trace gas analyzers, today announced that it has expanded the lower speed (up to 1 Hz) trace gas analyzer line to include as many as nine different Ultraportable trace gas analyzers with various combinations available in ten different products. This year's R&D 100 Award winning analyzer for NO2 (nitrogen dioxide) joins a series of 1 Hz analyzers that measure the same trace gases as the...

2012-07-03 02:20:52

MOUNTAIN VIEW, Calif., July 3, 2012 /PRNewswire/ -- Los Gatos Research (LGR), the leader in precision trace gas analyzers, today announced that it has expanded the high speed (10 Hz) trace gas analyzer line to include as many as seven different trace gases with various combinations available in eight different products. The trace gases that can be measured include carbon dioxide (CO2), water vapor (H2O), carbon monoxide (CO), methane (CH4), nitrous oxide (N2O), ammonia (NH3), and carbonyl...

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...


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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