Building Big and Finding Life – Episode 12 of Astronomy: Secrets of the Universe Revealed – Video

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Building Big and Finding Life - Episode 12 of Astronomy: Secrets of the Universe Revealed
Building Big and Finding Life - Episode 12 of Astronomy: Secrets of the Universe Revealed Segment 1 [8:56]: Building Big Segment 2 [8:59]: Finding Life Credit: An ESO production. Directed...

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Building Big and Finding Life - Episode 12 of Astronomy: Secrets of the Universe Revealed - Video

Nearest bright 'hypervelocity star' found

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A University of Utah-led team discovered a "hypervelocity star" that is the closest, second-brightest and among the largest of 20 found so far. Speeding at more than 1 million mph, the star may provide clues about the supermassive black hole at the center of our Milky Way and the halo of mysterious "dark matter" surrounding the galaxy, astronomers say.

"The hypervelocity star tells us a lot about our galaxy - especially its center and the dark matter halo," says Zheng Zheng, an assistant professor of physics and astronomy and lead author of the study published recently in Astrophysical Journal Letters by a team of U.S. and Chinese astronomers.

"We can't see the dark matter halo, but its gravity acts on the star," Zheng says. "We gain insight from the star's trajectory and velocity, which are affected by gravity from different parts of our galaxy."

In the past decade, astronomers have found about 20 of these odd stars. Hypervelocity stars appear to be remaining pairs of binary stars that once orbited each other and got too close to the supermassive black hole at the galaxy's center. Intense gravity from the black hole - which has the mass of 4 million stars like our sun - captures one star so it orbits the hole closely, and slingshots the other on a trajectory headed beyond the galaxy.

Zheng and his colleagues discovered the new hypervelocity star while conducting other research into stars with the Large Sky Area Multi-Object Fiber Spectroscopic Telescope, or LAMOST, located at the Xinglong Observing Station of the National Astronomical Observatories of China, about 110 miles northeast of Beijing. LAMOST boasts a 13.1-foot-wide aperture and houses 4,000 optical fibers, which capture "spectra" or light-wavelength readings from as many as 4,000 stars at once. A star's spectrum reveals information about its velocity, temperature, luminosity and size.

LAMOST's main purpose is to study the distribution of stars in the Milky Way, and thus the galaxy's structure. The new hypervelocity star - named LAMOST-HVS1 - stood out because its speed is almost three times the usual star's 500,000-mph pace through space: 1.4 million mph relative to our solar system. Its speed is about 1.1 million mph relative to the speed of the center of the Milky Way.

Despite being the closest hypervelocity star, it nonetheless is 249 quadrillion miles from Earth. (In U.S. usage, a quadrillion is 1,000,000,000,000,000 miles or 10 to the 15th power, or 1 million billion).

"If you're looking at a herd of cows, and one starts going 60 mph, that's telling you something important," says Ben Bromley, a University of Utah physics and astronomy professor who was not involved with Zheng's study. "You may not know at first what that is. But for hypervelocity stars, one of their mysteries is where they come from - and the massive black hole in our galaxy is implicated."

The Down-Low on a Fast and Loose Star A cluster of known hypervelocity stars, including the new one, is located above the disk of our Milky Way galaxy, and their distribution in the sky suggests they originated near the galaxy's center, Zheng says.

The diameter of the visible part of our spiral-shaped galaxy is at least 100,000 light years, or 588 quadrillion miles. Zheng says that when the halo of dark matter is added, the estimated diameter is roughly 1 million light years, or 5,880 quadrillion miles.

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Nearest bright 'hypervelocity star' found

In Memoriam: Aerospace Pioneer Bill Dana, Hypersonic X-15 Pilot | Video – Video

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In Memoriam: Aerospace Pioneer Bill Dana, Hypersonic X-15 Pilot | Video
NASA research pilot and aeronautical engineer passed away on My 6th, 2014. In his 48 year career,he flew more than 8000 hours in over 60 different aircraft. He received the NASA Distinguished...

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In Memoriam: Aerospace Pioneer Bill Dana, Hypersonic X-15 Pilot | Video - Video

Dr. Shoreh Ershadi Speaking at the 8th World Congress of ANTIAGING Medicine in Beijing

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Beverly Hills, CA (PRWEB) May 09, 2014

The AntiAging Institute is pleased to announce that Dr. Shoreh Ershadi is speaking at the 8th World Congress of ANTIAGING Medicine and Regenerative Biomedical Technologies Expo in Beijing. Dr. Shoreh Ershadi, Pharm. D., Ph.D., ABAAHP, NRCC, NRCT and ASCP, is the president and CEO of the AntiAging Institute of California. The government of China has invited her to speak at this important congress, which includes the 2nd Annual Asia-Pacific Anti-Aging Summit, or APAM. Dr. Ershadi will be attending the seminar and will present her book to the General Secretary of the A4MC-2013 and Chairman of WAAAM/A4M Asia Mr. Min Zhu.

The World Congress of ANTIAGING Medicine will be held at the Prospect Building in Beijing. While there, Dr. Ershadi will be honored for her contributions to the field of anti-aging medicine. She has been named as a member of the A4MC-2013 speaker bureau. The A4MC-2013 speaker bureau is an international organization of scientists and physicians who have created the A4MC-2013, an academic platform that furthers the field of anti-aging medicine.

Dr. Shoreh Ershadi has identified 45 symptoms of menopause, including mood swings, breast tenderness, vaginal atrophy and itchy skin menopause as well as hot flashes, night sweats and menopause cold flashes. Menopause symptoms can vary from woman to woman and from day to day. Some women may struggle with menopause dizziness while others experience joint pain and menopause hands tingling. The underlying cause of these symptoms is hormonal. Hormonal fluctuations can affect every major body system, which can lead to symptoms.

Addressing symptoms can be as simple as making a few positive lifestyle changes. DONT PAUSE is a natural supplement that has been developed by Dr. Shoreh Ershadi to manage and alleviate symptoms and restore healthier overall function. Most women need to take just one to two capsules a day for maximum relief. Some women may also need to reduce their alcohol and caffeine intake. Evaluating diet, exercise and sleep habits may also be beneficial. Each woman and her unique physical chemistry may require an individual approach, but DONT PAUSE can provide support to women regardless of where they are in their menopause transition.

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Dr. Shoreh Ershadi Speaking at the 8th World Congress of ANTIAGING Medicine in Beijing

Japan Appeals to Kremlin: PM Abe joins NATO in warning Russia over Ukraine aggression – Video

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Japan Appeals to Kremlin: PM Abe joins NATO in warning Russia over Ukraine aggression
Japanese Prime Minister Shinzo Abe has again urged Russia to respect the results of the upcoming presidential elections in Ukraine. Speaking after a meeting ...

By: Ukraine News One

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Japan Appeals to Kremlin: PM Abe joins NATO in warning Russia over Ukraine aggression - Video

NATO Secretary General with Polish Ministers of Foreign Affairs and Defence – Joint Press Point – Video

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NATO Secretary General with Polish Ministers of Foreign Affairs and Defence - Joint Press Point
Joint press point by NATO Secretary General Anders Fogh Rasmussen together with Polish Minister of Foreign Affairs, Radoslaw Sikorski and Minister of Defence Tomasz Siemoniak.

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NATO Secretary General with Polish Ministers of Foreign Affairs and Defence - Joint Press Point - Video