Health

Lost in space: Astronauts struggle to regain bone density

Astronauts lose decades' worth of bone mass in space that many do not recover even after a year back on Earth, researchers said Thursday, warning that it could be a "big concern" for future missions to Mars.

Diseases, Conditions, Syndromes

Monkeypox vaccine maker Bavarian Nordic ready to meet demand

As the lone laboratory manufacturing a licensed vaccine against monkeypox, Danish company Bavarian Nordic has seen its order book fill up as the usually rare disease spreads around the world.

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