"A new technique allowing virtual dissections of half-billion-year-old fossil embryos is producing the first three-dimensional images of the dawn of life."

[...]

"The Chinese, Swedish, Swiss and British researchers on Donoghue's team used a 1,640-foot-wide (500-meter-wide) particle accelerator in Switzerland to scan the minute fossils, and then fed the information into a computer that generated complete 3-D images of the internal structures in fine detail."