2029 will be the perfect year to launch a mission to Sedna

Object 90377 Sedna—a distant trans-Neptunian object known best for its highly elliptical, 11,390-year long orbit—is currently on its way toward perihelion (its closest approach to the sun) in 2076. After that, Sedna will ...

Study reveals the complexity of microplastic pollution

Microplastics—small plastic pieces less than 5 millimeters in length—are ubiquitous in the environment, and they can have significant effects on wildlife. A new study published in Environmental Toxicology and Chemistry ...

Video: The scent of death

Some scientists have an important, if morbid, job: They study the smell of decomposing human bodies.

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