A galactic 'comet' called Terzan 5 illuminates a 100-year-old puzzle about cosmic rays - Phys.org



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Is There a Limit to How Long Humans Can Survive in Space? - Gizmodo
Youngest planet ever discovered has misaligned orbit, puzzles scientists - Yahoo! Voices

DNA From the Jungle Floor Reveals Mating Mysteries of Endangered Muriquis - SciTechDaily
Rare Asteroid Sample Contaminated by Microorganisms Despite Scientists’ Best Efforts - Gizmodo