photo credit: 416style

So here’s what went down after you logged off.

There’s a reason that cowboys don’t make good anthropologists – and it has to do with Hobbits.

It’s aliiiiiiive! A green roof can reduce your heating bills and protect your waterproofing – plus, it’s pretty! Check out a how-to here.

Some ancient documents are taking their message high-tech: the Israel Antiquities Authority is putting all of the Dead Sea Scrolls – all 15,000 fragments – online.

Construction in London has unearthed thousands of human skeletons – and the oldest are soon going on display.

Recently developed: a wheelchair that walks for you by means of a “robotic exo-skeleton.” Check out the video here.

How fast can we go? Usain Bolt’s astonishing, record-setting Olympic races have forced scientists to reconsider.