News
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Invasive Genes: Humans incorporate DNA from parasite
Bits of foreign DNA from the parasite that causes Chagas' disease becomes integrated into the DNA of infected hosts, marking the first time that parasitic DNA has ever been found in the human genome.
- Chemistry
Velcro Therapy: Branching polymer wards off scarring after eye surgery
Specially designed polymer molecules called dendrimers reduce scar tissue formation after glaucoma surgery, dramatically improving the procedure's outcome.
- Astronomy
Universal Truths: Distant quasars reveal content, age of universe
Using quasars as searchlights on the distant universe, astronomers have mapped the distribution of gas between galaxies with unprecedented precision, allowing precise determinations of the age of the universe.
