Did Voyager 1 Leave the Solar System or Not?
By Sarah Scoles | Discover
The thing about crossing into uncharted territory is that you may not know when, exactly, you have crossed into it. No one needs to tell that to the Voyager 1 spacecraft, which is currently at the center of a controversy about where the solar system ends and interstellar space begins.
Today, a press release from the American Geophysical Union initially stated Voyager had left our solar system. Two hours later, though, they issued a correction calling Voyagerís current location a ďnew region of space,Ē which is considerably less flashy (but equally scientifically valuable). The NASA Jet Propulsion Laboratory, which oversees the spacecraft, weighed in with a press release saying that no, in fact Voyager was still in the solar system.
So why the controversy? What is the debate about the boundary of the solar system? And what is this ďnew regionĒ of which the scientists speak?
Letís begin at the beginning. NASA launched Voyager 1 in 1977. Since then, the 1,600-pound (722 kilogram) probe has been zipping away from Earth and toward the edge of the solar system. It is currently more than 11 billion miles from the Sun, which is nearly three times as far out as Pluto is (donít worry, Pluto; Voyager isnít a planet, either).
But moving 11 billion miles from home isnít always enough to free you of its influence. In the case of the solar system, the region where the Sunís influence dominates is known as the heliosphere. Here, the Sun has blown high-speed, charged pieces of itself into a womb-like bubble.
Since 2004, Voyager 1 has been traveling in a subsection of the outer heliosphere: the heliosheath, where the solar wind slows down in response to pressure from the interstellar medium, which is the combination of winds from other, distant stars. When the influence of the solar wind and the interstellar medium are equal, the solar system ends, or so we say, and actual interstellar space begins. But determining whether or not Voyager has arrived there is no simple task.
Read the full article at: discovermagazine.com
What Is on Voyagerís Golden Record?
The Voyager Golden Record
The Secret Messages NASA Sent to Aliens
Latest News from our Front Page
Professor: Reason Itself Is A White Male Construct
A philosophy and religion professor at Syracuse University gave an interview to The New York Times Thursday in which he critiqued the notion of pure reason as simply being a “white male Euro-Christian construction.”
Prof. John Caputo was being interviewed by fellow philosophy professor George Yancy for the 13th installment of an interview series Yancy conducts with philosophers regarding racial topics.
Given its emphasis on first principles ...
The Broken Window Fallacy
Youtube description: This short video explains one of the most persistent economic fallacies of our day.
Jenji Kohan and the Jewish Hyper-Sexualization of Western Culture
As detailed in The Culture of Critique, Freud and his followers regarded anti-Semitism was a universal pathology which had its roots in sexual repression. The theoretical basis for this can be found in Freud’s Three Essays on the Theory of Sexuality where he linked aggression to the frustration of human drives — especially the sex drive. Kevin MacDonald notes that: ...
Confederate History - Dispelling the Myths
History books, the media, the school systems, etc abound in falsehoods and inaccuracies of Confederate and Southern history. This fact sheet will help to clarify and dispell some of these rampant inaccuracies.
MYTH - The War of 1861 - 1865 was fought over slavery.
FACT - Terribly untrue. The North fought the war over money. Plain ...
Gays Rights May Open Door for Pedophile Rights
Democrats have attempted to normalize pedophilia as a sexual orientation.
A recent Supreme Court ruling on same-sex marriage may soon allow pedophiles to argue they are suffering discrimination.
‚ÄúUsing the same tactics used by ‚Äėgay‚Äô rights activists, pedophiles have begun to seek similar status arguing their desire for children is a sexual orientation no different than heterosexual or homosexuals,‚ÄĚ writes Jack Minor ...
|More News » |