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The Unseen Genome: Beyond DNA

DNA was once considered the sole repository of heritable information. But biologists are starting to decipher a separate, much more malleable layer of information encoded within the chromosomes. Genetics, make way for epigenetics

By W. Wayt Gibbs

The New Moon

Recent lunar missions have shown that there is still much to learn about Earth's closest neighbor

By Paul D. Spudis

Does Race Exist?

If races are defined as genetically discrete groups, no. But researchers can use some genetic information to group individuals into clusters with medical relevance

By Michael J. Bamshad and Steve E. Olson


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