Article: Astronomers Find Clues to Space Mystery // Teams Report Seeing Dark Matter

NEW YORK Astronomers believe they have taken their first look at the mysterious dark matter that makes up as much as 90 percent of the universe.

An American team and a French team independently reported evidence Monday that the dark matter is made up of billions of Jupiter-sized objects, a finding that could resolve a 50-year-old puzzle of central importance in modern astronomy.

"Eight days ago, a couple of members of the team noticed this astounding event, which has caused enormous excitement amongst us," said the head of the American team, Charles Alcock of Lawrence Livermore National Laboratory in California.

Alcock said it is impossible to be certain that dark matter has been seen ...

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