Spacecraft captures dust from interstellar wind

Particles giving clues to composition of space beyond solar system

A particle-gobbling probe has snared some alien travelers: tiny particles from interstellar space that, after being born from the ashes of an exploding star, breached a protective bubble blown by the sun and sailed into the jaws of the awaiting spacecraft.

“These are some first observations of interstellar material, really alien matter,” Dave McComas, a principal investigator for NASA’s Interstellar Boundary Explorer spacecraft, or IBEX, said January 31 in a NASA press conference announcing the findings.