"Archaeologists carrying out an excavation at Stonehenge say they have broken through to a layer that may finally explain why the site was built. The team has reached sockets that once held bluestones - smaller stones, most now missing or uprooted, which formed the site's original structure.

[...]

The dig is the first to take place at Stonehenge for more than 40 years."

BBC News

__________________
"All your bias are belong to us." Ara Pacis
"A witty saying proves nothing." Voltaire

Cool!

__________________
"If you think the LHC will create black holes, you might as well believe Hobbits are at the bottom of your garden."- Dr. Mike Inglis
Rovers forever! - ToSeek
"Carl Sagan sent a message to ET,
Neil Armstrong walked in the Sea of Tranquility
Steve Squyers built Spirit and Opportunity
Dan Haylen upchucked in zero gravity." -Brent Simon, The Space Camp Song

Being that I'm not British (therefore, really don't know too much about stonehenge)...
I was trying to recall what the bluestones were. (I do remember a whole lot of phases in the history)

On the OP's link, a related video on the history showed two incarnations of bluestones. First, the original stone construction (which, appears in the video as slightly outside the current ring). Second, an inner ring after the big rocks we see now.

Am I to assume they are talking about the first appearance of bluestone?

Also, what about the pre-stone phases of construction? Wasn't there some previous digs for this, or is there some difference in what they expect of the blueston holes.

__________________
Numbers are not case sensitive. (me)