Rare space radiation disasters may lead to extinction events – just how deadly is a two-month ozone hole?

Both supernovae and extreme solar flares can damage Earth’s ozone layer. But perhaps a black hole swallowing a neutron star somewhere not too far away gives a bigger punch – lasting a second or so.

Nobel Prize in Physics again goes to US (with touch of Australia) for accelerating expansion Universe

The 2011 Nobel Prize in Physics has been awarded to (1st half) Saul Perlmutter of Berkeley and (2nd half) to Adam Riess and Brian Schmidt for their discovery of the accelerating expansion of the Universe through observations of distant supernovae … Continue reading