Okay, I’m a little behind on news, but I thought this story was extremely cool: Voyager 1 passes 100 AU from the sun. I guess this is only of interest to you if you’re a space and astronomy geek.
(Some quick Wikipedia references: Voyager 1, AU.)
It’s just amazing to me that a spacecraft built with 1970s technology has been able to go so far and outlast a lot of other junk that’s been introduced to the world since then. It’s currently the most distant man-made object from Earth. Signals from the spacecraft take more that 13 hours to reach us.
The spacecraft [both Voyagers] are traveling at a distance where the sun is but a bright point of light and solar energy is not an option for electrical power. The Voyagers owe their longevity to their nuclear power sources, called radioisotope thermoelectric generators, provided by the Department of Energy.
Voyager 1 is now at the outer edge of our solar system, in an area called the heliosheath, the zone where the sun’s influence wanes. This region is the outer layer of the ‘bubble’ surrounding the sun, and no one knows how big this bubble actually is. Voyager 1 is literally venturing into the great unknown and is approaching interstellar space. Traveling at a speed of about one million miles per day, Voyager 1 could cross into interstellar space within the next 10 years.
Via Slashdot.
While I’m not a space nut, I think the amazing part of this is that the original power source is still powering it. I really feel that nuclear power could all but get rid of our polution from the coal and gas power plants all over, and the benefits of it far outweigh the risks. Nuclear tech used to be a scary thing, but it’s far safer and cleaner now than it was back when this thing was launched.