All dust is drifting so high in my wake, I yip out my voice and put heel to flank, For trails flow endless through that prairie range And I needs must see them all afore I will hang.
The worn saddle gives freedom, life and every good thing, Yet I wander with fear of what Winter will bring. Old winds are blowing as hoof turns the earth And once more I ride that I might prove my worth.
To most of us, dust is just something we clean off our furniture. But to
scientists dust can cause big problems in the lab. Computer chips are
put together and tested in what are called clean rooms. These
environments use filters to limit the amount of particles of dust in the
air. UC San Diego’s Janelle Shane explains how just one of these
particles can ruin microscopic components
Known as a
grand design spiral galaxy, M100 is a large galaxy of over 100 billion stars with spiral arms that are like our own
Milky Way Galaxy. This Hubble
M100 was made in 2009 and reveals bright blue
star clusters and
dust lanes which are hallmarks of this class of galaxies.
Studies of variable stars in
have played an important role in determining the
size and age of the Universe.
Located in the
constellation of Serpens, the Eagle Nebula is a very
luminous open cluster of stars surrounded by dust and gas. The three
pillars at the center of the image, made famous in an image by the
Hubble Space Telescope, are being sculpted by the intense radiation from
the hot stars in the cluster.
“This is what’ll happen,” she said, “and it’s true, perfectly true. When
you go out of here, all the particles that make you up will loosen and
float apart, just like your daemons did. If you’ve seen people dying,
you know what that looks like. But your daemons aren’t just nothing now;
they’re part of everything. All the atoms that were them, they’ve gone
into the air and the wind and the trees and the earth and all the living
things. They’ll never vanish. They’re just part of everything. And
that’s exactly what’ll happen to you, I swear to you, I promise on my
honor. You’ll drift apart, it’s true, but you’ll be out in the open,
part of everything alive again.”