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Contents contributed and discussions participated by Mars Base

Mars Base

India Marks 1 Year Without Polio, But Global Eradication Remains Uncertain - ScienceIns... - 0 views

  • India Marks 1 Year Without Polio
  • By all indications, the country has gone 1 year without a single case
  • India's achievement is a major boost to the beleaguered GPEI, which has spent more than $8 billion over the past 23 years to rid the world of the disease
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  • cases are surging in a number of countries -- not just the three other endemic countries of Pakistan, Afghanistan, and Nigeria, but in a dozen reinfected countries, many in Africa.
  • Many countries have been declared polio-free only to be reinfected by virus imported from another country
Mars Base

Kepler Spies Smallest Alien Worlds Yet - ScienceNOW - 0 views

  • 11 January 2012
  • very rough statistical analysis, the new discovery suggests that up to one-third of all red dwarf stars in the Milky Way galaxy are accompanied by small, rocky planets, many of which might be in wider orbits
Mars Base

NASA - NASA Discovers New Double-Star Planet Systems - 0 views

  • An artist's rendition of the Kepler-35 planetary system
Mars Base

Tatooine the Sequel: Kepler Finds Two More Exoplanets Orbiting Binary Stars - 0 views

  • January 12, 2012
  • Artist's conception of the Kepler-35 system. Credit: Lynette Cook / extrasolar.spaceart.org / Nature
Mars Base

Astronomers Find Saturn's Possible Cosmic Doppelgänger - 0 views

  • January 12, 2012
  • An artist's impression of a possible Saturn-like planet orbiting around a distant star. Image credit: Michael Osadciw/University of Rochester
  • An artist's impression of a brown dwarf surrounded by a cloud of proto-planet dust. Image credit: JPL
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  • A size comparison between the Sun, a low mass star, a brown dwarf, Jupiter, and the Earth. Image credit: NASA
  • Two of Saturn's shepherd moons keep the planet's F ring in check. Image Credit: NASA/JPL
Mars Base

Fun New App: MoonWalking - 0 views

  • January 12, 2012
  • app called MoonWalking allows you to bring Tranquility Base down to Earth
  • Using your iPhone or iPad as an interactive
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  • you can watch all the action, and even take pictures of the events with your iPhone
  • augmented-reality app that recreates Tranquility Base in your backyard or neighborhood park
  • download it from iTunes for only $.99.
  • is for iPhones and iPads only.
Mars Base

Twitter Kept Up With Haiti Cholera Outbreak - Science News - 0 views

  • Twitter, blogs and other social media can be powerful tools for tracking infectious diseases as they spread
  • researchers who followed social media during Haiti’s post-earthquake cholera outbreak in 2010.
  • Twitter posts and news about cholera gathered
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  • in the first 100 days of the outbreak tracked closely
  • data reported from hospital and clinics
  • social media data were available almost instantly
  • others have shown that Twitter and other online sources can provide meaningful information about outbreaks of diseases such as H1N1 and swine flu
  • new work establishes that the approach is useful for tracking a disease that emerges in the unsafe living conditions that often follow a disaster, says Polgreen.
  • 188,819 tweets that contained or were tagged with the word cholera during the first 100 days of the cholera outbreak
  • analysis suggests the social tool provides a good measure of the disease’s spread
  • The researchers compared the tweets to data from HealthMap, a disease-tracking tool that mines Internet news stories, blogs and discussion groups and lets the public report illness by cell phone. Both the Twitter and HealthMap data corresponded to official data from the Haitian Ministry of Public Health.
  • Official sources of data are better validated, but on the downside they are going to take time
Mars Base

Recent Satellite Crashes Bring Space Junk Problem Into Public Eye | Space Junk & Orbita... - 0 views

  • 12 January 2012
  • news that a failed Russian Mars probe will come crashing back to Earth in the next few days
  • public perception that the sky is falling —
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  • huge pieces of space junk could rain down on us at any moment.
  • Phobos-Grunt spacecraft
  • re-enter the atmosphere sometime between Saturday and Monday (Jan. 14 to Jan. 16).
  • the third uncontrolled satellite re-entry in four months
  • claims are handled on a case-by-case basis, you might be surprised to learn damage from satellite debris, aka space junk, likely would be covered under most insurance policies
  • Farmers Insurance, aired a commercial during this winter's college football bowl games offering similar assurances to its current and potential customers.
  • Experts predict that Russia's failed Mars probe Phobos-Grunt will crash back to Earth in mid-January 2012. This artist's concept shows fuel burning from a ruptured fuel tank as the spacecraft re-enters the atmosphere.CREDIT: Michael Carroll
  • NASA estimates that our planet's orbital debris cloud contains more than 500,000 pieces larger than a marble and more than 20,000 at least as big as a softball
  • space junk poses little threat to people on the ground. Most pieces of falling satellites burn up the atmosphere
  • the bits that make it through are likely to land harmlessly in the ocean or on uninhabited land
  • To date, nobody is known to have been injured by a chunk of falling debris.
  • poses a real threat to the craft that orbit and observe our planet and provide navigation and telecommunications services
  • 2009, for example, the Iridium 33 communications satellite was destroyed when it slammed into a defunct Russian satellite.
  • This computer illustration depicts the density of space junk around Earth in low-Earth orbit.CREDIT: ESA
Mars Base

New Deep Space Capsule Passes NASA Chief's Inspection NASA & Orion Multipurpose Crew Ve... - 0 views

  • engineers have completed a suite of structural, acoustic and vibration tests on key components of the spaceship
  • Orion Multi-Purpose Crew Vehicle
  • stacked hardware stretching 53 feet (16 meters)
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  • unmanned 2014 EFT-1 mission will blast Orion into space aboard a Delta 4-Heavy rocket. The capsule will orbit Earth twice while climbing to an altitude of several thousand miles, then rocket back in a high-speed plunge to validate its heat shield and other systems.
  • Artist's rendering of the Multi-Purpose Crew Vehicle on a deep space mission.CREDIT: NASA
  • Acoustic testing
  • recent acoustic testing of the Orion crew module/launch abort system structure involved hundreds of sensors planted throughout the hardware.
  • subjected it to the flight environment
  • chamber gets up to 150 decibels…like a rifle shot right next to your ear. It's pretty loud. All that sound…it's like a really loud rock concert
  • Huge heat shield
  • underside of Orion's crew module is the heat shield
  • measuring 16.5 feet (5 m) in diameter
  • Thermal Protection System advances heritage materials from the NASA's space shuttle and Apollo programs to create a next-generation system that can withstand the extreme environments of piloted deep space missions.
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