Rosetta Drops By, Looking For Rubble

AS WORLDS go, it is tiny, little more than a lump of rubble left over from the birth of the solar system. But the voyage to reach it has taken more than 4 1/2 years.

Rosetta To Drop By, Looking For Rubble

AS WORLDS go, it is tiny, little more than a lump of rubble left over from the birth of the solar system. But the voyage to reach it has taken 41/2 years.