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.
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
We’re now one hypothesis down and know one thing more: tens of millions of years ago there was an enormous piece of floating rock that did not cause the dinosaurs to die out at the Cretaceous-Tertiary boundary, NASA scientists say.
The moon may contain a hundred times as much water as previously thought, ongoing NASA research suggests.
It is often suggested that lower total solar irradiance (TSI) due to a decline in solar activity (less sunspots) was responsible for the Little Ice Age, a period of colder weather conditions from the end of the Middle Ages to … Continue reading
Confusing planetary news today. We recently reported on the discovery of Gliese 581g, an Earthlike planet, 20.5 light-years away, in the Constellation of Libra. It was claimed by two US astronomers. Now colleague astronomers from a Swiss observatory say they … Continue reading
Goldilocks number 2 has been found: Gliese 581g. The planet is some 20.5 light-years away from Earth, in the constellation of Libra – unsurprisingly a sign that is presently visible in the Zodiac, so if you live somewhere on the … Continue reading