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This Week in Science: Osteoarthritis Injections, Whale 'Speech', And Much More!

This week in science: injections of an experimental drug show promise in repairing damaged cartilage in joints; an intriguingly human-like pattern found in whale communication; the most pure star ever detected; and much more! Experimental Drug Can Reverse Osteoarthritis in Weeks, Animal Research Shows [caption id="attachment_197499" align="alignnone" width="642"] (peterschreiber.media/iStock/Getty Images Plus)[/caption] Injecting a slow-release drug into joints can repair cartilage to relieve osteoarthritis within weeks, according to a new animal study.

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