01/04/2016: Watch this space: Telescope releases mass of data

Astronomers in China working with one of world’s largest optical telescopes released a huge collection of data over the new year holiday, increasing the chances of “significant findings” in space exploration, experts say.

The latest update to the National Astronomical Observatories’ sky survey, conducted using the LAMOST telescope, includes some 4.62 million spectral data relating to the structure, formation and evolution of the Milky Way.

LAMOST-short for Large Sky Area Multi-Object Fiber Spectroscopic Telescope-has been used to carry out a massive sky survey since September 2012. So far, it has collected more data than all previous sky surveys combined, according to the NAO.

“As more and more data are released, there will be more significant findings,” said Yan Jun, director of the NAO.

Chu Yaoquan, deputy director of operations and development at LAMOST, described the survey as like a census of the stars. “The project gives us a large sample of stars. With the large sample-say, a few million-we can know more about the past and present of the galaxy,” he explained in an earlier interview.

Published by ECNS China.  See more at: http://www.ecns.cn/2016/01-04/194497.shtml

The Atlantic: The Town Where High Tech Meets a 1950s Lifestyle

Life in Green Bank, West Virginia, is far from ordinary. The small town sits inside a “national radio quiet zone” that houses one of the largest radio telescopes in the world. To ensure that astronomers work without interference, residents cannot use any product that transmits wireless signals within a ten-mile radius of the telescope. In other words: no microwave ovens, no cell phones, and no Wi-Fi.  “Just about anything that uses electricity could potentially cause interference to our telescopes,” says Jonah Bauserman, a technician for the National Radio Astronomy Observatory.

This documentary was produced for American Futures, an ongoing reporting project from James Fallows, Deborah Fallows, and John Tierney. Previously, the series profiled Pittsburgh’s bike scene and an arts community in Columbus.

Source: The Atlantic. View the article here.

National Geographic: Life in the Quiet Zone

The barrage of noise and distractions that are all but inescapable in most American communities is refreshingly absent in this unassuming hamlet, located in the wooded hills of Pocahontas County, four hours west of Washington, D.C. Here, no cell phones chirp or jingle, and local kids aren’t glued to the glowing screens of their mobile devices. Older residents roll down their car windows to greet each other and leave their front doors unlocked.

But Green Bank, population 143, isn’t a technological backwater. On the contrary, it is the proud home of one of the marvels of the space age: the Robert C. Byrd Green Bank Telescope, or GBT for short. Towering nearly 500 feet above its wide, green valley, with a dish large enough to cradle a football field, the GBT is the world’s biggest fully steerable radio telescope—and one of the largest movable objects anywhere on land. Locals jokingly refer to it as the Great Big Thing.

The GBT and other radio telescopes enable astronomers to detect and study objects in space that give off little visible light but emit naturally occurring radio waves—objects such as pulsars, gas clouds, and distant galaxies.

Source: National Geographic. Read more on their site.

NPR: Enter the Quiet Zone

There are no physical signs you’ve entered the National Radio Quiet Zone, a 13,000-square-mile area that covers the eastern half of West Virginia. But the silence gives you a signal. Somewhere around the Virginia-West Virginia state line, the periodic buzzes and pings of our smartphones stopped.

“Zero [service]. Searching,” said photographer John Poole, who traveled with me to the zone.

Almost every radio station disappeared, too, except forAllegheny Mountain Radio, which broadcasts at a low enough frequency to avoid being banned.

“We didn’t realize the rest of the world was getting connected and staying connected constantly, via phones and computers and all that,” said radio host Caleb Diller, who grew up in Pocahontas County, W.Va. “So we were kinda back in time a little bit. We hadn’t progressed to that.”

The county still hasn’t progressed to constant connectivity. That’s because it sits within a zone designed to protect a sophisticated radio telescope at the National Radio Astronomy Observatory from interference. The Robert C. Byrd Green Bank Telescope is the world’s largest fully steerable radio telescope.

Radio telescopes work by tracking and reading the energy waves that come from stars or gases, but they have to be located in sparsely populated areas to avoid electromagnetic interference.

The Green Bank Telescope looks like a giant dish. It’s as tall as the Washington Monument and large enough to fit 2 acres of land in it.

“It’s a huge collecting area and it’s what allows us to see these incredibly small energies that we’re trying to study,” says Karen O’Neil, who oversees the site. “The types of energies we look at are less than the energy of a single snowflake falling on the earth.”

Source: NPR, All Tech Considered. Get the transcript here.

Vice: Save The Last Great Telescope

The Green Bank Telescope (GBT) is the world’s largest fully steerable radio telescope and the world’s largest land-based movable structure. It is part of the National Radio Astronomy Observatory (NRAO) site at Green Bank, West Virginia, USA. NRAO is located in the National Radio Quiet Zone, a 13,000 mile zone where all radio transmissions are either limited or banned outright, to help the telescope function properly.

With the growing popularity of radio-array telescopes, the GBT may end up being the last single-dish telescope of its kind built in the world. Motherboard traveled to this remote part of West Virginia to investigate one of the last remaining vestiges of single dish big science and the people who are fighting for it.

Source: Vice, Spaced Out – The Silent Dish