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Science

The waters of Mars, peace walls and Ghost Ranch fossils : Your weekend reading list

The waters of Mars, peace walls and Ghost Ranch fossils : Your weekend reading list

This weekend, learn about interplanetary biological contamination, explore the legacy of the 'peace walls' of Belfast, and find out why digging up a fossil is just the beginning of the work.
by William Lager

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The Mars double attack

The Mars double attack

There is much excitement around finding liquid water on Mars. And, though high salinity is not good for life, we will only know if it exists there if we look, says astrophysicist Marcelo Gleiser.
by Marcelo Gleiser

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Research on fetal tissue draws renewed political, scientific scrutiny

Research on fetal tissue draws renewed political, scientific scrutiny

Critics say research on fetal tissue is no longer needed to answer crucial medical questions. But National Institutes of Health officials and other scientists say alternatives don't yet measure up.
by Rob Stein

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A Beautiful World: Enric Sala on 'Pristine Seas'

A Beautiful World: Enric Sala on 'Pristine Seas'

While the ocean is full of bad news, Dr. Enric Sala is focused on establishing global marine sanctuaries. He believes underwater ecosystems can not only survive, but thrive.

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