Along with annoyingly adhering to your TV screen and tabletops, dust can be a deadly material, exploding with enormously destructive force in places like coal mines, sugar refineries and grain silos. The explosive properties of normal dust are pretty well known, but what about non-traditional dust?
In a boon to slobs everywhere, a recent study shows that the same dust we hasten to remove from our mantles and windowsills when company calls is actually helping keep the air inside clean, reducing ozone levels by 2 to 15 percent.
Squalene, an oil found on skin cells, has six double carbon bonds in its molecules. These bonds can break apart ozone which, though great at protecting the Earth from radiation, is actually harmful down here on the ground. Breathing in too much ozone can cause lung damage.
JAXA, the Japanese space agency, has released the first photographs of the interior of the Hayabusa probe. Last week, we were starting to fear that the seven-year mission had returned to Earth without the crumbs of asteroid Itokawa that it had been sent for. But that photo looks promising.
Like painted kites, those days and nights
went flyin' byThe world was new, beneath a blue
umbrella skyThen softer than a piper man,
one day it called to youAnd I lost you, I lost you to
the summer wind...
NASA engineers are hoping those words, famously crooned by Frank Sinatra, don't come true this summer for the unflappable Mars rovers, Spirit and Opportunity.
Summer is approaching on Mars, and with it comes the onset of huge wind storms that kick dust around the twin Mars Exploration Rovers and their life-giving solar panels.
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.