SCIENCE

An amateur astronomer working from his backyard shed in Ireland was the first in the world to spot a supernova explosion last month. The discovery is the biggest ever in amateur astronomy in Ireland.

Researchers at UT Southwestern Medical Center have created an experimental vaccine against beta-amyloid, the small protein that forms plaques in the brain and is believed to contribute to the development of Alzheimer's disease.

Prohibition of cannabis in the United States may be counter-productive, with a new study showing that a period of increased law enforcement against the drug coincided with an increase in the number of young adult cannabis users smoking cheaper and more potent produce.

And finally, saved the best for last

A new international research project has found high levels of heavy metals in Chinese cigarettes, with some containing three times the level of lead, cadmium and arsenic of Canadian brands.

Yay, China. From poisoned dog food to poisonous baby food to leaded childrens toys.