A giant black hole is putting on a spectacular show and scientists at NASA's Chandra X-ray observatory have captured the action. The black hole, located in galaxy M87, is blasting gas outwards, causing scientists to compare what they are seeing in deep space to the eruption of a volcano.
Pedagogy is defined as the art or science of teaching. In the age in which we live, there is as much of one as of the other in classrooms around America. Teachers and professors compete with a variety and availability of stimuli that would astound their predecessors of another time. The noble goal of educating the rising generation has come along way from the days of etching words on clay tablets. The tablet itself, however, may just now be coming into its own.
A huge ice island is floating free in Arctic waters after splitting from the Petermann Glacier in northwest Greenland. University of Delaware researcher Andreas Muenchow announced the calving took place in the early morning of August 5 and amounts to the largest ice chunk lost in the Arctic since 1962. It measures 100 square miles and 625 feet thick. The National Ice Center provides a satellite image and map here.
Obama Administration officials have this week announced new estimates of total oil leaked from the BP offshore well, capped on July 15, fewer than three months after an explosion on the Deepwater Horizon rig claimed the lives of 11 employees.
The National Oceanic and Atmospheric Administration released its new “State of the Climate 2009” report on July 28, claiming that evidence for global warming is “unmistakable” and that it’s happening because of greenhouse gases. But critics are already poking holes in the alarmist arguments as the press jumps on the story.