Virgin Galactic takes flight   Atomic bomb tests help root out
fake wines  Carbon-dating wines produced since the first atomic
bomb tests can identify fake vintages, say chemists.     'Smart
roof' could slash energy costs  A white roof reflects heat and
cools a building; a dark one absorbs it. But until now there
hasn't been a material that could do both.  Early galaxy had
'teenage growth spurt'   Cold fusion is real, say scientists
Cold fusion is widely regarded as being just about as practical
a technology as a perpetual motion machine or the Philosopher's
Stone.  LHC sets new speed record   Printable RFID tags could
eliminate checkout queues  We could soon all be strolling past
the checkout with a cartful of goods, thanks to the development
of new, printable, nano-based RFID tags.  3D invisibility cloak
created  An invisibility cloak is one step closer to reality,
with a group of German and British scientists reporting that
they've successfully created a prototype that works in three
dimensions.  Saturn's