24 August 2008

Psychology's final frontier: Staying sane in space

Astrobiology Magazine posts an intriguing report today: The American Psychological Association is looking seriously at the question of astronauts' mental health. It's an issue that has sometimes been swept under the rug, says the APA's press release:

Historically, astronauts have been reluctant to admit to mental or behavioral health problems for fear of being grounded.

But as missions get longer and astronauts are asked to do more, psychologists are looking at ways to help them cope with loneliness and interpersonal conflicts. At Beth Israel Deaconess in Boston, psychologist James Carter (who also studies teamwork in space) and his group are building a tool to help astronauts deal with depression:

... a suite of interactive computer programs, dubbed the Virtual Space Station, using input from 13 veteran long-duration NASA astronauts who have flown on the International Space Station, Mir and Skylab. ... This interactive program will help astronauts prevent, detect, assess and manage their own psychosocial problems. They will learn how to cope with depression and how to resolve conflicts with other astronauts.

Read more about Carter's project >>

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08 August 2008

Archive: Bill Stone says, "I'm going to the moon -- who's with me?"

For the next two weeks, we're presenting some of our favorite TEDTalks from among the 270+ talks and performances we've posted since June 2006. Look for brand-new TEDTalks starting August 18. Until then, enjoy these gems -- and suggest your own by writing to contact@ted.com or joining the conversation on TED.com.

Bill Stone, a maverick cave explorer who has plumbed Earth’s deepest abysses, gives a rousing talk on his efforts to mine lunar ice for space fuel and to build an autonomous robot for studying Jupiter’s moon Europa. A TED.com user writes: "Where do I sign up?" (Recorded March 2007 in Monterey, California. Duration: 17:55)

Watch Bill Stone's 2007 talk on TED.com, where you can download it, rate it, comment on it and find other talks and performances.

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01 August 2008

The Lonely Interplanetary guide to scuba diving

Bored with Earthly beach destinations this summer? Does the word "Carribbean" not ring exactly, well, "exotic" these days? With this week's news that (highly acidic) water has been tasted on Mars and an ethane lake has been discovered on Saturn's moon Titan, perhaps it's time to investigate otherworldly destinations for fun in the surf. Grab your ultraviolet-shielded swimming gear and a good beach read (say, Project Orion by George Dyson, who spoke at TED in 2003), hop aboard Virgin Galactic's newly unveiled SpaceShipTwo, and cruise to these astonishing natural satellites orbiting Jupiter and Saturn, where summer never comes:

Tidally bound to face its mother planet, Europa consistently offers breathtaking views of Jupiter's turbulent atmosphere, while its breezy hardly-there chemise of molecular oxygen is delicate enough to leave the magnificent sight unobstructed. (But, beware the occasional barrage of comets yanked in by Jupiter's gravity.) Adventurers wishing to forgo Europa's "spa experience" will be at home, too: drill through miles of icy crust to access this satellite's vast subsurface ocean of liquid saltwater -- and whatever may lurk there.

Unlike visitors to other Jovian moons, sailors to Callisto can leave their ionizing radiationscreen at home: though excessively pockmarked by impacts, its outer orbit saves it from the effects of Jupiter's monstrous magnetosphere. Hiking enthusiasts can traverse its gigantic basin of concentric rings, Valhalla, spanning 600 kilometers, kicking through wisps of condensed oxygen. This moon's lack of tectonic activity makes for easy access to its likely ocean of liquid saltwater. (Robert Ballard has made the case that Earth's own oceans are still deeply mysterious.)

Athletes and thrill-seekers delight at Enceladus' suite of extreme winter features and low gravity: spirally slalom the slopes of its unforgettable impact craters; gawk at the ivory, propane-scented violence of erupting cryovolcanoes as the panorama of Saturn's rings sets below the horizon; bobsled along thousand-mile escarpments of fresh chemical ice. Meanwhile, geology geeks can enjoy exploring this highly reflective moon's incredible tectonic scars and stripes. But let divers beware: the existence of a liquid subsurface is only speculative.

Titan's atmosphere, unique among moons, makes it a mysterious entity among other natural satellites and an attractive destination for Saturn-bound families seeking an exotic experience without patent danger (asteroid strikes are rare). Visitors willing to endure its unusual weather -- the nitrogen-humid nights with the sky awash in orange; monsoons of methane and other hydrocarbons -- will be rewarded by its Earth-like terrain: newly discovered lakes of ethane, vast sand dunes, a probable ocean of water-ammonia under the surface, and perhaps even microbial life. (Get your vaccinations!)

Our solar system is truly a cornucopia of enchanting and enigmatic phenomena. Make sure your frequent-flyer miles go to good use on your next trek by studying TEDTalks by Carolyn Porco, Bill Stone, George Dyson, Freeman Dyson and other adventurers. -- Matthew Trost

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27 July 2007

A hard week for space exploration

This has been a hard week for lovers and dreamers of space travel -- a frequent topic at TED. An explosion at Burt Rutan's Scaled Composites spaceport caused three victims. It was followed by a report on issues of personal safety at NASA, part of the unfolding story there.

Space exploration is an inherent high-risk endeavor. We invite you to view several talks on TED.com that can help recapture the excitement and pure imagination that has inspired generations of people to reach for the stars: Burt Rutan's own vision, Bill Stone's audacity, and cosmologist David Deutsch, who tells us that humanity's true purpose -- the reason we exist -- is to explore and learn, to gain knowledge.

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28 June 2007

To the depths of the Earth ... and beyond! Watch Bill Stone on TED.com

Bill Stone, the maverick cave explorer and diver -- who has invented robots and rebreathing equipment to let him plumb Earth’s deepest abysses -- talks about his efforts to build a robot to explore Jupiter’s moon Europa. The plan is to send the droid to bore through miles of ice and swim through a liquid underworld that may harbor alien life. And if that’s not enough, he’s also planning to mine ice, on Earth's own moon, by 2015. (Recorded March 2007 in Monterey, CA. Duration: 17:55) Read more about Bill Stone on TED.com.

Watch this talk on TED.com, where you can download it, rate it, comment on it and find other talks and performances.

New: Download this talk in high resolution (480p) >>

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