Astronomy photographer of the year competition opens for submissions

Once in 50,000-year comet may be visible to the naked eye

Research has uncovered that pollen preserved in 250 million year old rocks contain compounds that function like sunscreen, these are produced by plants to protect them from harmful ultraviolet radiation (UV_B). The findings suggests that UV-B played a part in the end Permian mass extinction event

Puzzling Biochemists for Decades: Reconstruction of Two-Billion-Year-Old Enzyme Solves a Long-Standing Mystery