
Space & PhysicsDecember 1, 2000
The Secrets of Stardust
Tiny grains of dust floating in interstellar space have radically altered the history of our galaxy.

The Secrets of Stardust
Tiny grains of dust floating in interstellar space have radically altered the history of our galaxy.

The Structure and Evolution of Interstellar Grains
The particles of cosmic dust turn out to have an elaborate core-and-mantle construction. In the organic mantle there is evidence of complex, and even violent, chemical processes

Interstellar Grains
These dustlike particles, which may be frozen gases, constitute less than one part in 1,000 of all the matter in our galaxy. Yet they successfully hide most of the stars in the galaxy from view