People shake hands, swap email addresses, finish taking the final pictures, eventually stop whooping and cheering, but no one can really stop talking about what they have just seen. We have all been part of history today with record numbers of people being witness to the final mission.
For the second time in five years the Nobel Prize in Physics has gone to astronomy, to two teams, one in the United States and the other in Australia, that charted the outer reaches of the universe using distant stellar explosions as probes of its expansion, and whilst sifting through the light of long dead stars discovered the unexpected fate of all things.
The Nobel Prize in Physics was awarded on Tuesday to Saul Perlmutter, Brian P. Schmidt and Adam G. Riess for their leadership of the teams that discovered the apparent "accelerating expansion of the Universe through observations of distant supernovae" in 1998.
Today's planned launch of the twin GRAIL (Gravity Recovery and Interior Laboratory) spacecraft, which are being sent into orbit about the Moon at the end of the year, are the latest in a series of unmanned spacecraft that have in the past few years revolutionised our understanding of our nearest neighbor in space.