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Keyword: telescope

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  • Construction of huge telescope in Hawaii to resume after protests, court battles

    07/13/2019 12:47:07 AM PDT · by Jyotishi · 38 replies
    NBC News ^ | July 11, 2019 | The Associated Press
    The Thirty Meter Telescope is being built atop Mauna Kea, Hawaii's tallest mountain Illustration showing the proposed Thirty Meter Telescope on Mauna Kea on Hawaii's Big Island.Thirty Meter Telescope / via AP file HONOLULU -- Construction on a giant telescope will start again next week after lengthy court battles and passionate protests from those who say building it on Hawaii's tallest mountain will desecrate land sacred to some Native Hawaiians. State officials announced Wednesday that the road to the top of Mauna Kea mountain on the Big Island will be closed starting Monday as equipment is delivered. Scientists revere the...
  • SpaceX satellites could threaten vital telescope data, experts warn

    06/11/2019 1:07:10 AM PDT · by LibWhacker · 14 replies
    Digital Trends ^ | 6/4/19 | Georgina Torbet
    An image of the NGC 5353/4 galaxy group made with a telescope at Lowell Observatory in Arizona on May 25, 2019. The diagonal lines running across the image are trails of reflected light left by more than 25 of the 60 recently launched Starlink satellites as they passed through the telescope’s field of view. Victoria Girgis/Lowell ObservatorySpaceX launched its first set of 60 satellites last month, and astronomers have already raised concerns about the effect these and similar launches could have on our ability to view the stars. Now, the International Astronomical Union (IAU) has weighed in on the issue...
  • Seventh planet has a blue ring

    04/08/2006 4:03:32 PM PDT · by NYer · 36 replies · 844+ views
    BBC ^ | April 7, 2006 | Helen Briggs
    Astronomers have discovered that the planet Uranus has a blue ring - only the second found in the Solar System. Like the blue ring of Saturn, it probably owes its existence to an accompanying small moon. Scientists suspect subtle forces acting on dust in the rings allow smaller particles to persist while larger ones are recaptured by the moon. Smaller particles reflect blue light, giving the ring its distinctive colour, the US team reports in Science. All other rings - those around Jupiter, Saturn, Uranus and Neptune - are made up of both large and small particles, making the...
  • Chandra Captures Collision of Two Galaxy Clusters: Abell 1033

    11/19/2018 9:18:25 AM PST · by ETL · 14 replies
    Sci-News.com ^ | Nov 19, 2018 | News Staff / Source
    Galaxy clusters are cosmic structures containing hundreds or even thousands of galaxies. Multi-million-degree gas fills the space in between the individual galaxies. The mass of the hot gas is about six times greater than that of all the galaxies combined.This superheated gas is invisible to optical telescopes, but shines brightly in X-rays, so an X-ray telescope like Chandra is required to study it.By combining X-rays with other types of light, such as radio waves, a more complete picture of these important cosmic objects can be obtained.Using X-ray and radio data, a team of astronomers led by Leiden Observatory’s Dr. Francesco...
  • NASA fixes Hubble gyroscope by turning it off and on again

    10/24/2018 10:01:09 AM PDT · by LibWhacker · 47 replies
    engadget ^ | 10/24/18 | Mariella Moon
    NASA Hubble's designers prepared for gyroscope failure by equipping the observatory with a backup. Unfortunately, when one of Hubble's gyroscopes conked out in early October, the backup didn't work as expected -- it was rotating too fast and hence won't be able to hold the telescope in place when it needs to stay still and lock in on a target. NASA has since been able to reduce its rotation rates and fix its issues by implementing an age-old fix for malfunctioning electronics: turning it off and on again. Back to science! @NASAHubble is well on its way to normal...
  • Hubble in Safe Mode as Gyro Issues are Diagnosed

    10/09/2018 12:31:30 AM PDT · by LibWhacker · 17 replies
    NASA ^ | 10/8/18 | Felicia Chou
    NASA is working to resume science operations of the Hubble Space Telescope after the spacecraft entered safe mode on Friday, October 5, shortly after 6:00 p.m. EDT. Hubble’s instruments still are fully operational and are expected to produce excellent science for years to come. Hubble entered safe mode after one of the three gyroscopes (gyros) actively being used to point and steady the telescope failed. Safe mode puts the telescope into a stable configuration until ground control can correct the issue and return the mission to normal operation. Built with multiple redundancies, Hubble had six new gyros installed during Servicing...
  • looking for a FR astronomy/astophotograghy hobbyiest.

    09/28/2018 11:07:24 AM PDT · by Fhios · 27 replies
    9/28/18 | Vanity
    Hey, I'm looking for some amature astronomy / astrophotography hobbyists that can give me hints, links and recommendations to get started.and even used eqipment that may fit in with what I'm going to do. 1. I'm handicapped so my mobility is restricted I'll startiing in my driveway with pretty high light polutiing focusing on objects off in our solor system. Sun, moon, Jup, mar, saturn, uran, Merc venusm pluto, Moons of Jupiter, planets transiting the Sun and if they are resolvable, some of the bigger asteroids. 2. I would like take some time delayed photographs just for practice for upgrades...
  • WEIRD: FBI closes National Solar Observatory over mysterious ‘security issue’

    09/12/2018 9:54:20 PM PDT · by House Atreides · 108 replies
    Watts Up With That ^ | September 12, 2018 | Anthony Watts
    UPDATE 9/12/18 4PM PST The issue may be related to Mercury (the metal, not the planet). On a tip from a science journalist friend who covers telescopes and who has been there, I verified the observatory uses a vat of liquid mercury as a float bearing for the giant solar telescope. According to an internal NSO/NMSU document, that bearing is “high-risk” during maintenance. If there was a major mercury spill, it might explain why the Feds are there, with FBI providing security. The amount of Mercury is said to be in the “tens of gallons” range, which is next to...
  • Who Should Pay for the Mistakes on NASA’s Next Big Telescope?

    07/27/2018 3:59:09 PM PDT · by LibWhacker · 31 replies
    The Atlantic ^ | 7/18 | Marina Koren
    The space agency has always coughed up the extra cash, but some politicians wonder if the contractor responsible for major errors should pitch in.If everything had gone according to plan, the most powerful space telescope would be in orbit right now, perched about 1 million miles from Earth, peering deep into the universe, and returning home mesmerizing photos of glittering stars and galaxies. Instead, it’s still in a factory in California, waiting to receive more money so engineers can finish building it. The James Webb Space Telescope, NASA’s next big astronomy mission, has been in the works for two...
  • Why NASA’s James Webb Space Telescope is such a fiscal black hole

    04/24/2018 10:58:46 AM PDT · by LibWhacker · 45 replies
    The Hill ^ | 4/12/18 | Mark Whittington
    The announcement by NASA that launch of the James Webb Space Telescope is going to be delayed over another year, now May 2020, felt like déjà vu. When the JWST was first proposed in 1997, it was supposed to launch in 2007 and cost half a billion dollars. Now the launch date is 13 years later and the cost is at least $8.8 billion. NASA will have to go back to Congress for more money if the huge space observatory exceeds previous cost caps. In the meantime, NASA is convening an independent review board that will examine the problems that...
  • Amateurs Measure ISS Using the Moon

    04/10/2018 12:07:11 PM PDT · by messierhunter · 86 replies
    YouTube ^ | 4-7-18 | me
    Let's see how long this thread lasts, the mods pull everything I post that offends or upset the delicate little flat earth and science hating snowflakes that have taken over FreeRepublic these days. Here's a simple method anyone can use to measure the altitude, size, and velocity of the International Space Station by capitalizing on a lunar transit (where ISS is silhouetted against the moon within a narrow corridor - you can find opportunities on transit-finder.com). Anyone can do this with a friend using a good high magnification camera like a P900 or other long focal length telephoto lens on...
  • The Universe in a Mirror; The Saga of the Hubble Space Telescope and the Visionaries who built it.

    03/04/2018 8:12:32 PM PST · by Voption · 37 replies
    WGBH Forum at The Explorers Club Via YouTube ^ | June 30, 2008 | Robert Zimmerman
    The concept of what would become the Hubble Space Telescope was first envisioned after World War II, when astronomer Lyman Spitzer and a handful of scientists began a fifty year struggle to build the first space telescope capable of seeing beyond Earth's atmospheric veil. Robert Zimmerman, author of "The Universe in a Mirror: The Saga of the Hubble Space Telescope and the Visionaries Who Built It," takes us behind the scenes, explaining how some of Hubble's advocates sacrificed careers and family, and how others devoted their lives to the telescope only to have their hopes and reputations shattered when its...
  • They Just Began Casting the Giant Magellan Telescope’s 5th Mirror. What a Monster Job.

    11/08/2017 8:10:47 PM PST · by LibWhacker · 41 replies
    Universe Today ^ | 11/7/17 | Evan Gough
    The fifth mirror for the GMT's 7 segment primary mirror is being cast at the Richard F. Caris Mirror Laboratory at the University of Arizona. In this image, a worker at the lab places the last piece of glass for mirror 5. Image: Giant Magellan Telescope Organization Astronomy, News, Observatories They Just Began Casting the Giant Magellan Telescope’s 5th Mirror. What a Monster Job. Article written: 7 Nov , 2017 by Evan Gough The fifth mirror for the Giant Magellan Telescope (GMT) is now being cast, according to an announcement from the Giant Magellan Telescope Organization (GMTO), the body...
  • Arecibo Observatory, Puerto Rico’s famous telescope, is battered by Hurricane Maria

    09/21/2017 1:41:54 PM PDT · by LibWhacker · 26 replies
    Washington Post ^ | 9/21/17 | Sarah Kaplan
    The National Science Foundation has not heard from staff at the iconic Arecibo Observatory in Puerto Rico since Hurricane Maria roared over the island. A spokeswoman for NSF, which owns the observatory, said the agency hadn't received any official communications from Arecibo since 8 a.m. Wednesday — before the eye of the storm passed over the telescope. Two of the groups that helps manage the observatory, SRI International and the Universities Space Research Association, also hadn't heard from their staff on site. One observatory staff member who weathered the storm in the town of Arecibo contacted the association via shortwave...
  • Spat Over Design of New Chinese Telescope Goes Public

    08/16/2017 11:13:03 AM PDT · by nickcarraway · 2 replies
    Science ^ | Aug. 11, 2017 | ongming Huang
    Spat over design of new Chinese telescope goes public By Yongming HuangAug. 11, 2017 , 12:13 PM A deep division among Chinese astronomers over the design of a proposed 12-meter telescope broke into public view this week as statements from competing camps went viral on social media. The dispute centers on whether to adopt a technically ambitious four-mirror design proposed by optical engineers or a conventional three-mirror option favored by astronomers. The stakes are high. It will be China’s largest optical telescope and serve as the workhorse observational facility for several generations. In a 4 August letter to the Chinese...
  • First images from Lockheed's experimental, telescope-shrinking SPIDER

    08/05/2017 2:08:20 AM PDT · by LibWhacker · 31 replies
    New Atlas ^ | 8/3/17 | David Szondy
    First images from Lockheed's experimental, telescope-shrinking SPIDER David Szondy August 3, 2017 Cross cut view of a SPIDER array (Credit: Lockheed Martin) View gallery - 3 images If asked to think of a telescope, most people will picture a long tube with a lens at either end. But a new experimental optical instrument developed by Lockheed Martin could usher in ultra-thin devices that weigh 90 percent less than typical telescopes while providing equivalent resolution. The first images captured by the Segmented Planar Imaging Detector for Electro-Optical Reconnaissance (SPIDER) have now been revealed. Lockheed Martin today released the first images from...
  • All Systems Go' for James Webb Telescope

    08/03/2017 8:04:36 AM PDT · by MtnClimber · 30 replies
    The Daily Galaxy ^ | 2 Aug, 2017
    Set to be launched in 2018 from Kourou, French Guiana, the JWST will embark on a journey to unravel the universe’s mysteries, "from discovering the first stars and galaxies" to "studying the atmospheres of alien planets around other stars." “This was the first time all the different parts worked together at the same time, and this was the first time it was tested against the actual spacecraft flight hardware,” explained Alan Johns, ground segment and operations manager for the Webb telescope at NASA’s Goddard Space Flight Center. NASA called, and the Webb telescope responded. NASA’s James Webb Space Telescope recently...
  • Using the Sun as a Cosmic Telescope

    05/31/2017 2:31:53 AM PDT · by LibWhacker · 17 replies
    Scientific American ^ | May 30, 2017 | Slava G. Turyshev, Michael Shao
    Astronomers want to harness [the Sun's] spacetime-warping gravity as a lens to image the surface of exoplanets in astonishing detail The bluish ring is a distant galaxy whose image has been magnified and warped by the gravity of a reddish galaxy in the foreground Credit: ESA/Hubble & NASA Wikimedia Within just a few years, astronomers may at last find a planet that shows signs of life as we know it, in the form of atmospheric gases that betray signs of biological activity. This would be a transformational event for our civilization. But, what would we do next? How could we...
  • What will the James Webb Space Telescope reveal ...? (Trunc; Hubble Replacement)

    02/24/2017 9:00:55 AM PST · by Hostage · 43 replies
    New Atlas ^ | 2-24-2017 | Nick Lavars
    The discovery of seven habitable planets just 40 light years away is certainly impressive, but the fact is, they are still 40 light years away. Unless we're willing and able to spend thousands of years traveling through space, we won't be rolling into the TRAPPIST-1 system anytime soon. This means that over the coming decades, advanced scientific instruments closer to home will play very important roles in exploring these distant worlds – perhaps none more so than the James Webb Space Telescope. So what can we expect when it is fired into orbit next year? We checked in with some...
  • Gaia space telescope plots a billion stars

    09/14/2016 5:36:58 PM PDT · by LibWhacker · 20 replies
    BBC ^ | 9/14/16 | Jonathan Amos
    The most precise map of the night sky ever assembled is taking shape. Astronomers working on the Gaia space telescope have released a first tranche of data recording the position and brightness of over a billion stars. And for some two million of these objects, their distance and sideways motion across the heavens has also been accurately plotted. Gaia's mapping effort is already unprecedented in scale, but it still has several years to run. Remarkably, scientists say the store of information even now is too big for them to sift, and they are appealing for the public's help in making...