“Even today, more than eighty years after Oort's bold guess, we still don't have a clue what this dark matter is made of. We… — Christophe Galfard Copy Share Image
“Everyone should be very grateful radioactivity exists at all. It can kill you, yes, but without it you wouldn't have been born in the… — Christophe Galfard Copy Share Image
“Our image is here and will for ever stay, and there is comfort in knowing that the memory of our lives will always be… — Christophe Galfard Copy Share Image
