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spinning 17 tons of glass to make the world's largest telescope


when it’s completed, the giant magellan telescope will live up to its name. it will be the largest telescope in the world. its size will pay off––it’s going to have ten times the resolution of the hubble telescope. this video explains how the glass for the telescope’s massive mirror is being made. the spinning process itself uses the largest spinning furnace on the planet. it will take months for that glass to finish spinning and to cool!full story at youtube.more great engineering. posted by josh urich






arecibo survives hurricane irma: 2nd-largest radio telescope still standing


the world's second-largest radio telescope has apparently weathered the storm.






enormous radio telescope in china subject of 'impossible engineering' | video


the five-hundred-meter aperture spherical radio telescope (fast) is the largest single dish radio telescope int the world. the science channel explores the telscope in a new episode of 'impossible engineering." premieres on march 30, 2017.






hurricane irma threat closes arecibo, world's second-largest radio telescope


the second-largest radio telescope in the world has suspended operations as powerful hurricane irma churns ever closer.






hot stuff! huge secondary mirror cast for extremely large telescope


an enormous piece of glass-ceramic has been cast for the secondary mirror of the european southern observatory's (eso) extremely large telescope, entering a year-long cooldown and heat-treatment period until it's ready to be ground and polished for use with the megatelescope. the completed mirror will measure nearly 14 feet across (4.2 meters) and weigh 3.9 tons (3.5 metric tons) — larger than the primary mirror for many current research telescopes, eso officials noted in a statement. for the extremely large telescope, though, the mirror will be suspended upside down over the 128-foot (39 meter) primary mirror, which is made of 798 hexagonal mirror segments. the telescope is scheduled to reach first light in 2024 on a mountain in chile's atacama desert. eso documents the casting process in






giant magellan telescope project starts making mirror no. 5


the construction of a highly anticipated mega-telescope is proceeding apace. technicians have begun casting the fifth primary mirror for the giant magellan telescope (gmt) at the university of arizona's richard f. caris mirror laboratory, project representatives announced today (nov. 3). when the gmt is complete, it will integrate seven of these 20-ton, 27.6-foot-wide (8.4 meter) mirrors into a single light-collecting surface 80 feet (24.5 m) across. the resulting instrument will have 10 times the resolving power of nasa's iconic hubble space telescope, gmt representatives have said. [photos: casting mirror no. 5 for the giant magellan telescope] "creating the largest telescope in history is a monumental endeavor, and the gmt will be among the largest privately funded scientific initiative






tests give james webb telescope a taste of deep space (exclusive interview)


the enormous james webb space telescope (jwst) is undergoing extensive testing to prepare for its nearly million-mile journey through space. after it launches in late 2018, it will return groundbreaking images of distant planets, ancient galaxies and more. space.com talked with astrophysicist amber straughn at nasa's goddard spaceflight center in maryland about the testing process and the new telescope's potential. (you can watch the video interview here.) "this is the largest and most complex telescope that nasa has ever built," straughn told space.com. "we will look back in time over 13 and a half billion years to see some of the first galaxies that were born, we will be able to peer through dust clouds to see the sights of star formation within our own milky way galaxy. we're really set






the hubble telescope won't crash into mars, but it may look that way


closeskip in skipxembedxshare nasa released the largest photo ever of the andromeda galaxy. the panoramic image taken by the hubble space telescope is 1.5 billion pixels. 1-20-15 in this image released by the national aeronautics and space administration (nasa), the hubble space telescope is backdropped against black space.(photo: getty images/file) 59 connectlinkedinemailmorethe hubble space telescope will pass in front of mars on friday night — and because of our depth perception — it will look like the decades-old telescope is slamming into the red planet.the hubble's expected path puts it right in front of mars at 7:58:42 p.m. people think that they can see in 3-d, but this isn’t true. our retinas are fundamentally two-dimensional. we see light in different positions but not truly at d






the hubble telescope won't crash into mars, but it may look that way


closeskip in skipxembedxshare nasa released the largest photo ever of the andromeda galaxy. the panoramic image taken by the hubble space telescope is 1.5 billion pixels. 1-20-15 in this image released by the national aeronautics and space administration (nasa), the hubble space telescope is backdropped against black space.(photo: getty images/file) 64 connectlinkedinemailmorethe hubble space telescope will pass in front of mars on friday night — and because of our depth perception — it will look like the decades-old telescope is slamming into the red planet.the hubble's expected path puts it right in front of mars at 7:58:42 p.m. people think that they can see in 3-d, but this isn’t true. our retinas are fundamentally two-dimensional. we see light in different positions but not truly at d






the hubble telescope won't crash into mars, but it may look that way


closeskip in skipxembedxshare nasa released the largest photo ever of the andromeda galaxy. the panoramic image taken by the hubble space telescope is 1.5 billion pixels. 1-20-15 in this image released by the national aeronautics and space administration (nasa), the hubble space telescope is backdropped against black space.(photo: getty images/file) 63 connectlinkedinemailmorethe hubble space telescope will pass in front of mars on friday night — and because of our depth perception — it will look like the decades-old telescope is slamming into the red planet.the hubble's expected path puts it right in front of mars at 7:58:42 p.m. people think that they can see in 3-d, but this isn’t true. our retinas are fundamentally two-dimensional. we see light in different positions but not truly at d






the hubble telescope won't crash into mars, but it may look that way


closeskip in skipxembedxshare nasa released the largest photo ever of the andromeda galaxy. the panoramic image taken by the hubble space telescope is 1.5 billion pixels. 1-20-15 in this image released by the national aeronautics and space administration (nasa), the hubble space telescope is backdropped against black space.(photo: getty images/file) 70 connectlinkedinemailmorethe hubble space telescope will pass in front of mars on friday night — and because of our depth perception — it will look like the decades-old telescope is slamming into the red planet.the hubble's expected path puts it right in front of mars at 7:58:42 p.m. people think that they can see in 3-d, but this isn’t true. our retinas are fundamentally two-dimensional. we see light in different positions but not truly at d






the hubble telescope won't crash into mars, but it may look that way


closeskip in skipxembedxshare nasa released the largest photo ever of the andromeda galaxy. the panoramic image taken by the hubble space telescope is 1.5 billion pixels. 1-20-15 in this image released by the national aeronautics and space administration (nasa), the hubble space telescope is backdropped against black space.(photo: getty images/file) 75 connectlinkedinemailmorethe hubble space telescope will pass in front of mars on friday night — and because of our depth perception — it will look like the decades-old telescope is slamming into the red planet.the hubble's expected path puts it right in front of mars at 7:58:42 p.m. people think that they can see in 3-d, but this isn’t true. our retinas are fundamentally two-dimensional. we see light in different positions but not truly at d






the hubble telescope won't crash into mars, but it may look that way


closeskip in skipxembedxshare nasa released the largest photo ever of the andromeda galaxy. the panoramic image taken by the hubble space telescope is 1.5 billion pixels. 1-20-15 in this image released by the national aeronautics and space administration (nasa), the hubble space telescope is backdropped against black space.(photo: getty images/file) 74 connectlinkedinemailmorethe hubble space telescope will pass in front of mars on friday night — and because of our depth perception — it will look like the decades-old telescope is slamming into the red planet.the hubble's expected path puts it right in front of mars at 7:58:42 p.m. people think that they can see in 3-d, but this isn’t true. our retinas are fundamentally two-dimensional. we see light in different positions but not truly at d






the hubble telescope won't crash into mars, but it may look that way


closeskip in skipxembedxshare nasa released the largest photo ever of the andromeda galaxy. the panoramic image taken by the hubble space telescope is 1.5 billion pixels. 1-20-15 in this image released by the national aeronautics and space administration (nasa), the hubble space telescope is backdropped against black space.(photo: getty images/file) 54 connectlinkedinemailmorethe hubble space telescope will pass in front of mars on friday night — and because of our depth perception — it will look like the decades-old telescope is slamming into the red planet.the hubble's expected path puts it right in front of mars at 7:58:42 p.m. people think that they can see in 3-d, but this isn’t true. our retinas are fundamentally two-dimensional. we see light in different positions but not truly at d






enormous radio telescope in china subject of 'impossible engineering'


by steve spaleta | march 13, 2017 12:03pm et the five-hundred-meter aperture spherical radio telescope [fast] is the largest single dish radio telescope int the world. the science channel explores the telscope in a new episode of 'impossible engineering." premieres on march 30, 2017. credit : science channel






world's largest space telescope graduates goddard testing, heads to texas


the james webb space telescope is on the road again. after passing its final test at nasa's goddard space flight center in greenbelt, maryland, the megatelescope is ready for the next stop on its trip to space: further testing at johnson space center in houston. the final mirrors for the giant space observatory arrived at goddard in 2014, and the telescope's construction was finally completed in november 2016, after more than 20 years of construction. since then, the instrument has endured a battery of testing to ensure that it can withstand the rigors of launch and deep space. webb is slated to launch in 2018, when it will become the world's largest telescope to fly to space. (nasa highlighted some of webb's testing in a new video.) the final test at goddard checked the curvature of the t






world's largest space telescope graduates goddard testing, heads to texas


the james webb space telescope is on the road again. after passing its final test at nasa's goddard space flight center in greenbelt, maryland, the megatelescope is ready for the next stop on its trip to space: further testing at johnson space center in houston. the final mirrors for the giant space observatory arrived at goddard in 2014, and the telescope's construction was finally completed in november 2016, after more than 20 years of construction. since then, the instrument has endured a battery of testing to ensure that it can withstand the rigors of launch and deep space. webb is slated to launch in 2018, when it will become the world's largest telescope to fly to space. the final test at goddard checked the curvature of the telescope's mirrors to see whether they had become warped d






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the arecibo telescope might save the world


the arecibo telescope is unusual. not just because of its size––but because the telescope can transmit, and that means it can act as a radar station. as such, it can find, say, an astroid hurtling towards earth.full story at youtube.more science. posted by josh urich






nasa's striking new image of the james webb space telescope


why it matters to you the james webb space telescope will give us an unprecedented look into distant galaxies and new understanding about the origins of our universe.now that spring has arrived, nasa has released a new image of the largest and most expensive space telescope in history — and, in our eyes, it’s the most glorious yet.after two decades of construction, the agency announced the completion of the james webb space telescope last november, following the first important pretest to measure its primary mirror. over the next few months, the telescope went through a series of grueling trials that shook, rattled, and froze the state-of-the-art machine, subjecting it to conditions it will have to face in outer space. now, with the final gold-coated segment of its 21-foot-wide mirror arra






observatory celebrates centennial of 100-inch telescope


pasadena, calif. (ap) — astronomers are celebrating the centennial of the 100-inch (2,540-millimeter) hooker telescope at southern california’s mount wilson observatory .the reflector telescope’s first observations occurred in 1917 on the night of nov. 1 and into the morning of nov. 2.at the time it was the world’s most advanced telescope and was used by astronomer edwin hubble to prove that the universe is expanding.the telescope is named for businessman john d. hooker, who funded the instrument when it was proposed by astronomer george ellery hale.most read storiesunlimited digital access. $1 for 4 weeks.creating the massive, 100-inch-diameter glass disk for the telescope’s mirror took years before it went into use on mount wilson, a peak at an elevation of more than 5,700 feet (1,737 me






shaking a nearly 9 billion dollar space telescope - jwst vibration test video


the rigors of launch demand extreme testing for payloads. nasa’s james webb space telescope was recently placed on a shake table to simulate vibrations it will endure. the telescope has an estimated “life-cycle cost of $8.835 billion dollars."






spain will get giant telescope if hawaii doesn't, group says


honolulu — an agreement has been reached for a giant telescope to be built in spain's canary islands if it cannot be put atop a hawaii mountain.telescope builder tmt international observatory says hawaii's mauna kea remains the preferred location for the $1.4 billion thirty meter telescope.but some native hawaiians are fighting to keep the telescope off a mountain they consider sacred.hawaii's supreme court invalidated the project's construction permit, forcing long-running hearings for a new one. it's unclear when a decision will be made.the nonprofit tmt on wednesday said the canary islands agreement was a milestone for the embattled project.it wants to start construction next year.the spanish agency overseeing canary islands observatories says the telescope would be good for spain and t






at mt. wilson, scientists celebrate 100th birthday of the telescope that reveale


beneath the cavernous, rivet-studdeddome of the mt. wilson observatory, dozens of people gathered around the 100-inch telescope to take a peek at the craters and crags of the moon. later, the telescope swiveled toward the double star albireo and the blue snowball nebula, revealing the ghostly objects in breathtaking detail.thomas meneghini, executive director of the mt. wilson institute, never tires of these nights.“i get to operate this,” he said saturday evening, gesturing at the telescope that dwarfed the crowd below. “i just get a thrill out of it.”wednesday marks the centennial of the 100-inch hooker telescope. when it gathered its first light on nov.1, 1917, it overtook its 60-inch neighbor and became the largest telescope in the world — a position it held for more than three decades






nasa's james webb space telescope mission invades sxsw 2017


an interactive exhibit on nasa's next flagship observatory, the james webb space telescope, has landed at the 2017 south by southwest (sxsw) celebration in austin, texas. nasa, the space telescope science institute (stsci) and the northrop grumman corporation are hosting the space telescope exhibit from today through saturday (march 12-18), nasa officials said in an announcement. sxsw visitors can find the exhibit at the austin convention center, 500 e. cesar chavez street in austin. [in images: building the james webb space telscope] "the webb telescope is nasa's top science program in development that will allow scientists to peer ever farther into the cosmos, seeing things no previous telescope has been able to see and explore the formation of the first stars and galaxies," nasa officia






webcast about nasa's next big space telescope


you can learn all about nasa's $8.8 billion james webb space telescope (jwst), the successor to the agency's iconic hubble space telescope, in a live webcast tonight (march 1) at 7 p.m. est (0000 gmt on march 2). jwst science team member amber straughn will talk about the telescope, which is scheduled to launch in late 2018, during a public lecture hosted by the perimeter institute for theoretical physics in ontario, canada. you can watch the presentation live in the window below, courtesy of the perimeter institute: you can also watch the webcast directly via the perimeter institute here: https://insidetheperimeter.ca/new-era-astronomy-amber-straughn-public-lecture/ from the perimeter institute: "the hubble space telescope has completely revolutionized our understanding of the universe, a






'ghosts' hover around massive telescope in new image


when the lights go out, the ghosts come out to play. that's what it seems like in an eerie photograph taken of the james webb telescope in a specialized clean room, with the lights out. because of the long exposure needed to take a picture in the dark, the clean-room scientists bustling around the telescope resemble wraiths in the photograph, chris gunn, the nasa photographer who took the image, said in a statement. a long exposure means the camera's shutter is left open for a long period, giving ample time for the few light particles, or photons, in the dark to hit the sensor or photographic paper and create an image of the object. as a result, moving objects appear blurry, because the light particles reflecting from them come from different locations while the shutter is open, while stat






aerodynamic astronomy: extremely large telescope tackles wind tunnel


engineers with the european southern observatory (eso) are conducting wind-tunnel tests for the astronomical organization's extremely large telescope (elt), a massive new telescope scheduled to begin scanning the cosmos in 2024.






5,000 days in space! 'astronomy robot' spitzer space telescope keeps scanning


by steve spaleta | may 8, 2017 01:26pm et learn how the space telescope autonomously scans targets. the nasa space telescope launched on aug. 25, 2003 and reached the 5000 day mark on may 3, 2017.  credit : nasa/jpl-caltech






old communications dish born again as radio telescope in africa


a converted communications antenna in west africa saw first light as a functioning radio telescope, making it the first african partner of a vast radio telescope network. the announcement was made by the ministries of ghana and south africa on july 4.






who invented the telescope?


several men laid claim to inventing the telescope, but the credit usually goes to hans lippershey, a dutch lensmaker, in 1608.






puerto rico's massive radio telescope is still guarding against killer asteroids


arecibo, puerto rico – while the vast majority of puerto ricans are living in a technologically deprived state without power and poor communications, there’s one high-tech oasis on the island that wasn’t blown back to the dark ages by hurricane maria.the arecibo observatory, a massive radio telescope built in 1963 in the mountains of central puerto rico, was raked by the eye of the storm but was almost unscathed.within seven days, the observatory was up and running on generators — tracking pulsars and receiving data from across the galaxy.the heart of the observatory is a silvery 1,000-foot-diameter dish that sits in a valley and makes arecibo the largest operational single-dish radio telescope in the world. china recently built a 1,650-foot-diameter telescope, but it’s still not running.t






telescope zoom download


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5000 days in space! 'astronomy robot' spitzer space telescope keeps scanning


by steve spaleta | may 8, 2017 01:26pm et learn how the space telescope autonomously scans targets. the nasa space telescope launched on aug. 25, 2003 and reached the 5000 day mark on may 3, 2017.  credit : nasa/jpl-caltech






behold the james webb telescope in all its unfurled glory


image credit: nasa/desiree stoverlike a dandelion reaching up to the sky on a warm spring day, the james webb telescope peers upwards in this stunning new photo released today by nasa. still under construction, the powerful space-bound telescope will soon be shipped across the country for the next phase of its development.advertisementin this photo (above), nasa technicians can be seen lifting the fully deployed primary mirror with a crane. the telescope’s 18-segmented dish is being moved—ever so carefully—to a clean room at nasa’s goddard space flight center in greenbelt, maryland. with the construction phase mostly complete, nasa will now prepare the telescope for transportation to the johnson space center in houston, texas, where it will undergo further testing. the telescope in its fol






behold the james webb telescope in all its unfurled glory


image credit: nasa/desiree stoverlike a dandelion reaching up to the sky on a warm spring day, the james webb telescope peers upwards in this stunning new photo released today by nasa. still under construction, the powerful space-bound telescope will soon be shipped across the country for the next phase of its development.advertisementin this photo (above), nasa technicians can be seen lifting the fully deployed primary mirror with a crane. the telescope’s 18-segmented dish is being moved—ever so carefully—to a clean room at nasa’s goddard space flight center in greenbelt, maryland. with the construction phase mostly complete, nasa will now prepare the telescope for transportation to the johnson space center in houston, texas, where it will undergo further testing. the telescope in its fol






interesting thing of the day


like the loch ness monster or the abominable snowman, i usually think of bigfoot (or sasquatch as he’s sometimes known) as a distinctly 20th century phenomenon. however, while it’s true that interest in these legendary creatures was stoked by images captured through the modern means of p og hy and film, the stories surrounding them actually go back centuries. from the lakes of scotland, to the heights of the himalayas, to the pacific northwest of america, locals have long attested to the presence of these elusive beings.although little-known today, a mythical creature with striking similarities to bigfoot was believed to exist an even longer time ago in medieval europe. called a woodwose, or in anglo-saxon wuduwasa, this wild man of the forest was a familiar figure in the literature and vi