Tuesday, April 03, 2007

 

Daily Update 04/03/2007

Hello and welcome to my page

I am planning on posting daily things that I find interesting on the internet. I hope you enjoy these items as much as I do.Most topics posted on this page will be completely random. Just various stories and news tidbits I have discovered today.

My Favorite Featured Story
Brought to you by Yahoo
A Mars-orbiting satellite recently spotted seven dark spots near the planet's equator that scientists think could be entrancesto underground caves.

The football-field sized holes were observed by Mars Odyssey's Thermal Emission Imaging System (THEMIS) and have beendubbed the seven sisters --Dena, Chloe, Wendy, Annie, Abbey, Nikki and Jeanne--after loved ones of the researcherswho found them. The potential caves were spotted near a massive Martian volcano, Arisa Mons. Their openingsrange from about 330 to 820 feet (100 to 250 meters) wide, and one of them, Dena, is thought to extend nearly 430feet (130 meters) beneath the planet's surface.

The researchers hope the discovery will lead to more focused spelunking on Mars.
"Caves on Mars could become habitats for future explorers or could be the only structures that preserve evidence of past orpresent microbial life ," said Glenn Cushing of Northern Arizona University, who first spotted the black areas in thephotographs.
A project here on Earth aims to refine the visual and infrared techniques THEMIS used to find the Martian caves and to alsodevelop robots that can one day enter the caverns and explore them.

Practicing on Earth
Called the Earth-Mars Cave Detection Program, the project is preparing to enter phase 2, during which scientists will testtheir approach in "Mars analogue" sites, terrestrial environments with similarities to Martian landscapes. These sites will includedry, blistering deserts, such as the Mojave in California and the Atacama in Chile, as well as frigid environments likeIceland and Antarctica.

During the first phase of the project, the researchers acquired the thermal signatures of a dozen caves in Arizona and NewMexico using an experimental infrared detector flown aboard an airplane, called the Quantum Well Infrared Photodetector(QWIP), as well as data collected on the ground using a handheld thermal camera.

Cave detection using QWIP works by spotting regions in the landscape where temperatures are different from thesurroundings. Inside a cave, temperatures are nearly constant due to lack of sunlight. Outside, temperatures fluctuate withthe rising and setting of the Sun. At a cave entrance, these two temperature regimes mix together to create a uniquethermal signature that, depending on the time of day, can be either warmer or cooler than the surrounding environment.
"The caves show up as hotspots in a sea of cold, or as cold spots in a sea of warmth," said study team member MurzyJhabvala, chief engineer of the Instrument Systems and Technology Center at NASA's Goddard Space Flight Center.

The data, still being analyzed, look promising. In one series of images, the researchers snapped thermal images of XenolithCave in New Mexico over a 24-hour period. The cave opening can be seen clearly in some of the images.

"It jumps out at you," said Jut Wynne, a biospeleologist (cave biologist) with the U.S. Geological Survey and Northern ArizonaUniversity. "It lights up like a Christmas tree in the predawn and in the late-night shots. It's a bit more ephemeralduring the day shots."

In Phase 2, the researchers will tweak their technique to figure out the best wavelengths to use and optimal times during theday for cave hunting. "In so doing, we're going to take these applications and then apply them to an orbiter platform forMars," said Wynne, who is also the Earth-Mars Cave Detection Program project leader.

Robotic cave explorers
The project team also aims to design robots that can explore caves on Mars after they have been spotted. Natalie Cabrol, aplanetary geologist with NASA Ames and the SETI Institute, will be integral to this part of the project.

Cabrol is a Mars robot veteran. Before Spirit and Opportunity were sent to Mars, she helped engineers perfect their designsby field-testing the robotic rovers in the Atacama Desert in Chile.
The researchers may have to design more than one type of robotic cave explorer. "There are many types of caves," Cabrolsaid in a telephone interview. "It may be that we come up with one very versatile design ... or we might end up withseveral designs."

If the caves have a relatively simple structure--like lava tubes, which are caves carved by flowing magma and are relativelysimple and straight--a rover-type robot might work, Cabrol said. "I would doubt that a rover, equipped as they arenow, would do a good job in a cave" with a more complicated geometry, she said.

Open to ideas
The researchers are also considering other robotic design possibilities, including the deployment of several miniature robotstogether into a cave.

"You could throw out an array of microbots in a birdshot approach over an area where you think there is a cave," Wynne toldSPACE.com . The microbots could then use sonar or some other method to confirm the presence of a cave and pinpointits location.

Whatever form the team's robotic explorer ultimately takes, it will have to be agile, have some basic sense of self-awareness,sport excellent night vision and have the ability to communicate with one other in some innovative way, sinceconventional radio communication might not work well in caves, Cabrol said.

"We are very much on the starting line on this," she added. "This is very exciting. This is really the time when ideas areflitting all over the place."

Future 'Martians' Could Live in Caves Microbot Madness: Hopping Toward Planetary Exploration Spelunking on Mars: Cavesare Hot Spots in Search for Life Original Story: Possible New Mars

Caves Targets in Search for Life
Visit SPACE.com and explore our huge collection of Space Pictures, Space Videos, Space Image of the Day, Hot Topics,Top 10s, Multimedia, Trivia, Voting and Amazing Images. Follow the latest developments in the search for life in ouruniverse in our SETI: Search for Life section. Join the community, sign up for our free daily email newsletter, listen to ourPodcasts, check out our RSS feeds and other Reader Favorites today!

Viewpoint - Very cool stuff. These are the first baby steps into exploring space.

My Favorite Story Trash News Story
Brought to you by TMZ

TMZ spies tell us La Lopez arrived at the Beverly Hills Courthouse at 8:30 AM with an assistant in tow, and spent most of hertime in the jury room text messaging friends. Although we're told Jennifer was really down to earth and talked to otherjurors, at one point the prospective jurors were ushered into a hallway, while the pop diva stayed inside the courtroomwith a personally assigned deputy.

Sources say the jury room was quite chilly, and after lunch Lopez returned dressed with a sweater and scarf and with adifferent assistant than in the morning.

At 2:30 PM word came down that the court case had been resolved and all forty prospective jurors, including Jennifer, werefree to go home. Case closed!

Viewpoint - Go Jenny from the block.

My Favorite Press Release Today
Brought to you The Open Press
From Monday 2nd April, Party Poker will be holding tournaments that guarantee over $5 million a month! On top of this thereis over $50,000 in freerolls every month and hundreds of thousands of dollars up for grabs from the famous Bad BeatJackpot.
The mainstay of the $5 million is the $300k guaranteed every Sunday that attracts thousands of players every week, withonline qualifiers starting from as little as $3. The popularity of the tournament has risen so sharply in recent months thatfour new qualifiers have been added on a Saturday and Sunday. Amongst the many tournaments that will see an increasein their guarantee from Monday 2nd April include the $40k guaranteed every Saturday that will deliver $50k. Others tohave been topped-up include the daily $10k guaranteed (rebuy), which rises to $13k, and the daily $18k guaranteed, whichincreases to $20k.
A Party Poker spokesman said: "It is good news all round that over $5 million is available to thousands of players inguaranteed tournaments every month. In addition to guaranteed tournaments, qualifying for the WSOP is in full swing andthere is over $50,000 in freerolls available every month. The famous Party Poker Bad Beat Jackpot also continues to tickover at a rate of over $1000 every hour and has just been hit for over $145,000."
For more information on guaranteed tournaments go to the Party Poker website.
Party Poker is a popular member of Party Gaming Plc's growing suite of online games that includes PartyCasino.com,PartyBingo.com, PartyBets.com, PartyGammon.com, Gamebookers.com and EmpirePoker.com.

My Favorite Spam e-mail of the day
I don't know about you but I am consistently getting spam e-mail. Some of these e-mails totally crack me up. I've decided topost my favorite spam e-mail daily.

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My Weather: Kansas City
Brought to you by the NOAA

Today: Windy. Mostly cloudy skies will become mostly sunny this afternoon. High 61F. Winds NW at 20 to 30 mph. Windscould occasionally gust over 40 mph.
Tonight: Mainly clear. Cold. Low around 30F. Winds NNW at 20 to 30 mph.


My Daily Horoscope (Virgo)
Brought to you by Yahoo Astrology

Quickie
A person who made a big splash in your life is acting unusual and needs some space.

Overview
A small bump in the road doesn't have to derail your journey if you keep your cool. Whatever the disturbance is, take it instride. After all, what do the great philosophers all say? 'This too shall pass.'

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