Researchers devise sex-cell precursors with staying power

Human primordial germ cells (PGCs) are the early precursors of the eggs (oocytes) and sperm that are necessary to keep humankind alive and reproducing. Medical researchers attempt to study their function and development using ...

Peering into a more 'human' petri dish

Cell culture media, the cocktail of chemicals and nutrients that keep cells alive and thriving in a dish, have been an essential tool of biology for more than 70 years. Remarkably, the composition of these potions hasn't ...

Was going to space a good idea?

In 1963, six years after the first satellite was launched, editors from the Encyclopedia Britannica posed a question to five eminent thinkers of the day: "Has man's conquest of space increased or diminished his stature?" ...

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