Showing posts with label Satellite. Show all posts
Showing posts with label Satellite. Show all posts

Tuesday, February 7, 2012

This Massive Cold War Spy Satellite Was Hidden from the World Until Now [Space]


The HEXAGON satellite spied on America's Cold War foes for over a decade, taking extremely detailed (film!) photographs from space. It was 60 feet long—bigger than a bus. And the public never, ever saw it. We did.

To celebrate its 50th birthday, the top secret satellite operators at the National Reconnaissance Office gave the public a little present: full access to a real life HEXAGON at National Air and Space Museum's Udvar-Hazy Center in Virginia—filled largely with nostalgic old spies and space engineers. So of course we checked it out. The enormity of the thing is stunning, as is its complexity. [View as single page]

In the 70s, flying a plane over the Soviet Union and China wasn't like hopping on Jet Blue—especially one loaded with American spy gear. So the Pentagon cooked up HEXAGON—the most sophisticated space eyeball among the first generation of spy sats. Beginning in 1971, each HEXAGON was pushed up into space by a Titan III rocket, whereupon it would snap humungous panoramic views of Russian turf with its giant camera, which boasted a focal length of 77 inches, a 20-inch aperture, and the ability to capture detail down to two or three feet. But how'd it get the film down to Earth? With a lot of balls.

Each payload of recon negatives was launched in its own landing vehicle, met by a spy plane that would literally snatch it out of the air like a butterfly net. These photos were used to, of course, see what the dastardly commies were up to, and plan for an eventual war against them. Of course, none of this was ever needed, as they weren't really up to that much. But the HEXAGON marked a profound shift for warfare—even cold warfare. For the first time, space was a battlefield. America began to think that to control space was to control what sat underneath it—the vacuum was militarized. And this giant hulk helped make it that way—a process that'll never, ever be reversed. [NRO] You can keep up with Sam Biddle, the author of this post, on Twitter, Facebook, or Google+. All photography by Nicko Margolies. For more of Nicko's work and contact information, check out his photo blog.

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Sunday, February 5, 2012

Another Dead Satellite Is Blindly Plummeting to Earth [Space]

Another Dead Satellite Is Blindly Plummeting to EarthSo apparently dead satellites blithely falling from the sky is a thing now. After last week's UARS debacle, the now-defunct German Roentgen Satellite (ROSAT) is scheduled to crash to Earth in late October or early November.

The ROSAT was originally an X-Ray observatory developed by Germany, the United States, and the United Kingdom and launched in 1990. Its design life was 18 months, but it functioned fully through 1994, and was only shut down for good in 1999. And now it's coming to kill us all.

For its part, the German Aerospace Agency promises to provide frequent updates, similar to NASA during the UARS scare. Though apparently the ROSAT's orbit means it could land anywhere from Canada to South America, which sounds totally reasonable and not at all incredibly horrifying. And the odds of its debris crushing a human being are a less optimistic 1-in-2000, compared to UARS's 1-in-3200.

The danger period is still a pretty wide window, so you certainly have time to get your affairs in order before you're crushed to death but a 2.4-ton molten German satellite. But do begin praying to whatever deity or Sector 7 flower girl you go to for salvation from giant falling space objects. [Smart Planet, NASA]

Image Credit: German Aerospace Center

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Saturday, September 17, 2011

NASA's Not Sure Where in the World This Satellite Will Crash [Space]

NASA's Not Sure Where in the World This Satellite Will CrashThe 20-year-old UARS satellite has dropped out of orbit—as old satellites are wont to do—and is reentering the atmosphere. Too bad NASA can't pinpoint where—or when—exactly it will land. Could be the middle of the Pacific, could be the middle of Paris—it's a surprise!

If you have to leave your house on or around September 24th, remember to keep one eye on the skies. The Upper Atmosphere Research Satellite (UARS) is currently hurtling in at 5 meters per second and is expected to land somewhere between the 57th latitudes—that's 57 degrees north and 57 degrees south of the equator—which only covers...most of the world's populated areas. Shit.

Luckily, most of the satellite is expected to break apart and burn up before it touches terra firma. Unluckily, the UARS still has only a 1 in 3,200 chance of striking a populated area—NASA's normal safety protocols limit that probability to 1 in 10,000. Apparently you are more likely to be killed via falling satellite than you are by a bear wearing a ballerina outfit. [BBC]

You can keep up with Andrew Tarantola, the author of this post, on Twitter, Facebook, or Google+. Related Stories

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Thursday, September 8, 2011

Iridium's Newest Satellite Gear Gives You WiFi Across the Entire Planet [Phones]

Iridium's Newest Satellite Gear Gives You WiFi Across the Entire PlanetIf you think your phone's data connection is shitty at home, just imagine being in the middle of the wilderness. Or on a mountain. Or the ocean. Iridium's new super-rugged handset and access point sucks satellite signal everywhere you go.

Let's say you're in the middle of a glacier. Or, maybe more realistically, a national park. Or really anywhere on this wide planet of ours that doesn't get mobile reception. You probably want to check your email or do a little web browsing, eh? Tough shit! There's no signal, and certainly no WiFi. So make your own WiFi.

The Iridium Extreme handset is water resistant, dust proof, ruggedized against drops and shocks, and, of course, connects to Iridium's global satellite network for voice, SMS, and GPS action. So that's great if you need a rugged satellite phone. Add in the Iridium AxCess Point (x-treme spelling!), a medium size USB-connectable black box and you've got a satellite-powered WiFi hotspot, anywhere on Earth.

Now admittedly, it's slow—28 Kbps. Like, early 90s speeds. A far, far, far reach from 3G, or even EDGE. But it'd be enough for email and light, slow browsing. Or checking out some photos if you have the patience of a Zen master.

So it's slow, expensive, and not exactly compact—but for those who traverse the various jungles, crags, peaks, ravines, and seas of the world, it could save a life. Or help you blog a little! [Iridium]

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