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This week on Quirks & Quarks, a special edition: Black in science The legacy of racism in science and how Black scientists are moving the dial.

When trans people go into a sexual health clinic, what we’re seeing is the person delivering the service doesn’t believe the trans person is who they know themselves to be.

Taking inspiration from the calls of 12 endangered birds, a composer created a piece of music that explores themes of natural history, conservation and extinction. A behavioural ecologist muses about what if anything differentiates human music from bird songs.

Bob's blog: In H.G. Wells' War of The Worlds, visiting aliens had no resistance to infection by Earthly organisms. We can't risk that as we contemplate exploring Mars in person.

The advantage of using viruses yes viruses to fight dangerous bacterial infections Bacteria will always change and evolve to overcome any drug, but phage are unique in that they can evolve as well.

Using ancient tree rings, scientists were able to link a temporary magnetic pole reversal 42,000 years ago to a tough time for life on Earth. Our planet's magnetic field collapsed, exposing the upper atmosphere to cosmic rays that led to "incredible change."

Levitating solar-powered micro flyers may fly high where planes and rockets can't. At that height, there isn’t even enough air pressure for balloons to float. http://cbc.ca/1.5918942

What's your science question? Ask us!