A small Earth-orbiting probe has sampled the interstellar wind for the first time, detecting four types of atoms that originated in distant stars and traveled across the universe. The new measurements from the Interstellar Boundary Explorer give astronomers a glimpse of the cosmos outside our sun’s sphere of influence, and provide some clues about how and where our solar system formed.
Dust may help astronomers understand the formation of stars and planets
By Katie PeekPosted 10.11.2010 at 10:11 am 0 Comments
Riding in a car through space, if you were to hang your white-gloved hand out the window, it would come back dirty. The space between the Milky Way's stars is filled with gas and dust—lots of dust.
This summer, the European Space Agency's Planck satellite produced a high-resolution dust map. The ultimate goal of the project is to map the cosmic microwave background, the electromagnetic leftovers of the universe's violent beginning.
A spacecraft delivers rare samples of extraterrestrial dust to Earth. Now scientists need your help to study it
By Dawn StoverPosted 03.14.2006 at 2:00 am 0 Comments
"We believe we have the Holy Grail," says Don Brownlee, the lead scientist for NASA's Stardust mission, in which a robotic spacecraft traveled nearly three billion miles to capture interstellar dust and comet particles and then flew back to Earth in a seven-year round-trip voyage. The touch-down this January in the Utah desert marked the first successful return of extraterrestrial material since 1976, when an unmanned Soviet probe last brought home moon rocks.