Telstra has revealed the addition of almost one million new mobile services in the six months to December 2011, but Sensis revenues plummeted 24 percent in 12 months.
The heliosheath is about 80 to 110 astronomical units (AUs) from the Sun—about 7.4 to 10.2 billion miles from our star. (One AU is equal to the mean distance between the Earth and the Sun, about 93 million miles, or 150 million kilometers.)
As of May 9, 2008, Voyager 2 is at a distance of around 85.84 AU (approximately 7.98 billion miles or 0.001357 light-years) from the Sun. Its distance traveled per year is about 3.28 AUs.
As of May 22, 2008, Voyager 1 was at a distance of 106.4 AU (approximately 10 billion miles or 0.0017 light-years) from the Sun. Voyager 1 is considered the most distant human-made object from Earth
Scientists now think that Voyager 1 will reach the heliopause sometime in 2015 (and Voyager 2 will reach it sometime after this year)—that is, the spacecraft will exit our solar system and enter interstellar space in that year.
They are hopeful that Voyager 1 and 2 will continue to produce data through 2015 and maybe even up to ten years later—if we’re lucky.
In summary, we are learning more and more about how our solar system, all controlled by the Sun, functions in relation to the rest of local interstellar space--the space adjoining our solar system. These old spacecraft are still providing valuable information about our lives here on Earth as we orbit the Sun and zip through the Milky Way Galaxy, all while inside our solar system.
Comparative positions in the solar system of Voyager 1 and 2, along with NASA's Pioneer 10 and 11, is found at Heavens Above “Spacecraft escaping the Solar System”
David Bass
| For the fourth year in a row, IDC has placed content security provider Websense (NASDAQ: WBSN) at the top of the IDC Worldwide Web Security 2011 –…
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