SEATTLE — This gorgeous new X-ray image of the nearby galaxy M82 shows a frantic burst of star formation that may have been triggered by a close encounter with a nearby galaxy.
M82 is “the prototypical starburst galaxy in the nearby universe,” said astronomer Roy Kilgard of Wesleyan University, who presented the new image in a press conference Thursday at the meeting of the American Astronomical Society. The galaxy lies just 12 million light-years from the Milky Way, and is the brightest galaxy in the sky in infrared wavelengths. The image above was captured by the Chandra X-Ray Observatory over the course of nearly two years. “It’s extraordinary. I’ve never seen detail like this in an X-ray image before,” Kilgard said.
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![]() Astronomers from the Minnesota Planetarium Society have found that the moon's gravitational pull on the Earth changed our planet's position in relation to its axis, making the original alignment of the stars, the basis for the zodiac signs, "off" by about a month. Thus, a thirteenth zodiac sign Ophiuchus was added to the original 12. With the change, the birth days assigned to particular zodiac signs might not be accurate anymore. Minnesota Planetarium Society board member Parke Kunkle said in an interview with Minnesota Star Tribune that the ancient Babylonians based zodiac signs on the constellations the Sun was "in" on the day a person was born. Over time, the moon's gravitational pull has made the Earth "wobble" around its axis, creating a one-month bump in the stars' alignment. "When [astrologers] say that the Sun is in Pisces, it's really not in Pisces," Kunkle said in the interview. Because of additional one month in the cycle, the birthday classifications under each zodiac sign changed as follows: Brace for the worst: You may be a Virgo, scientists say.
There are many newspapers and websites that promise to tell your fortune, detailing where the planets were when you were born and what their future movements suggest about your future. It's called astrology, and whether or not you believe in it, you won't believe this: It's all wrong. Astronomers with the Minnesota Planetarium Society have dropped a bomb on the zodiac, noting that thanks to the millennia-long effect of the moon's gravitational pull on the Earth, there's about a one-month bump in the alignment of the stars. The result? "When [astrologers] say that the sun is in Pisces, it's really not in Pisces," Parke Kunkle, a board member of the Minnesota Planetarium Society, told the Star Tribune. And if the sun isn't in Pisces, YOU'RE not in Pisces. Surprise! You're an Aquarius. ![]() Earth's Magnetic Field is constantly being bombarded by solar radiation by Zach Royer | Apparently Apparel ----------------------------------------------------------------------------------------------------------------------------------- (Overview of BGS) British Geological Survey - http://www.bgs.ac.uk/home.html Founded in 1835, the British Geological Survey (BGS) is the world's oldest national geological survey and the United Kingdom's premier centre for earth science information and expertise. The BGS provides expert services and impartial advice in all areas of geoscience. Our client base is drawn from the public and private sectors both in the UK and internationally. From the category "Earth Hazards" on the above website. The South Georgia observatory will plug a significant gap in the global network of magnetic observatories. In particular South Georgia observatory will allow better monitoring of the South Atlantic Anomaly and of changes occurring deep within the Earth. By establishing the new observatory, BGS will re-start continuous magnetic observations in South Georgia, last carried out in 1982. What is the South Atlantic Anomaly? The Earth’s magnetic field, generated deep within the planet, is a shield against particle radiation from space. In the South Atlantic this shield is much weaker than elsewhere across the globe and radiation from space therefore penetrates deeper into the atmosphere. This region is known as the South Atlantic Anomaly (SAA) and the radiation in the SAA is a known hazard to satellites, spacecraft and high-altitude aircraft. ![]() SEATTLE — Forget about gamma rays from the hearts of distant galaxies. Scientists now believe gamma rays, as well as beams of energetic particles of antimatter, are common components of lightning storms right here on Earth. In 2009, researchers announced that NASA’s Fermi Gamma-ray Space Telescope had, for the first time, detected gamma rays produced by antimatter generated in terrestrial lightning storms (SN: 12/5/09, p. 9). Now, after analyzing additional gamma-ray signals produced by terrestrial positrons — the antimatter counterpart to electrons — Michael S. Briggs of the University of Alabama in Huntsville and his colleagues think that the antimatter beams do not require special conditions to be generated. Briggs presented the latest findings during a news briefing January 10 at the winter meeting of the American Astronomical Society. Details will also appear in an upcoming Geophysical Research Letters. “The idea that any planet has thunderstorms that not only produce antimatter but then launch it into space seems like something straight out of science fiction,” commented Steven Cummer of Duke University in Durham, North Carolina, who was not part of the study. “That our own planet does this, and has probably done it for hundreds of millions of years, and that we’ve only just learned it, is amazing to me.” |
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