Via The Guardian:
A disparate group of experts from around the world will meet for the first time on Thursday for talks on what must rank as one of the most momentous decisions in human history.
The question confronting the scientists and other specialists is straightforward enough, even if the solution is far from simple. Is it time to call an end to the epoch we live in and declare the dawn of a new time period: one defined by humanity's imprint on the planet?
This piece of rock is 4.4 BILLION years old. DAYUM!
esearchers involved in the discovery said that the discovery was of high scientific value. Earth's crust formed relatively quickly after the formation of our planet, and this little gem is a remnant of the original crusty crew. According to the University of Wisconsin scientist who led the investigation, John Valley, the survival of the crystal suggests that the early planet was not quite as harsh a place as commonly accepted in the scientific community. It lends support to the "cool early Earth" theory, which says that hydrosphere and liquid water existed before 4.3 billion years ago.
It's a "build your own volcano" kit like no other. A team of geologists in Germany has built a model volcano that crackles with lightning as it erupts. But this is no toy science kit for kids – it could offer insights into the disruption risk to aircraft in the aftermath of an eruption.