'Ghost particles' from space telescope wins physics Nobel

What happened: Prof Francis Halzen won the Nobel Prize in Physics for leading development of the IceCube Neutrino Observatory at the South Pole, which detects neutrinos from space. Key numbers: He first presented his vision for detecting neutrinos at the South Pole in 1988. IceCube uses a 1km cubic block of ice with thousands of sensors. Why it matters: The Royal Swedish Academy of Sciences said his vision and leadership were fundamental to IceCube. Prof Mark Pearce said his tenacity and vision paved the way for a new kind of astronomy.

Prof Francis Halzen won the Nobel Prize in Physics for leading development of the IceCube Neutrino Observatory at the South Pole, which detects neutrinos from space.

The Royal Swedish Academy of Sciences said his vision and leadership were fundamental to IceCube. Prof Mark Pearce said his tenacity and vision paved the way for a new kind of astronomy.