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NASA Announces Changes to Spacewalk Schedule, First All-Female Spacewalk

NASA is hosting a media teleconference at 4:30 p.m. EDT today to discuss this week’s first all-female spacewalk at the International Space Station. Audio of the teleconference will stream live on the agency’s website.

The cosmic war between monotony and creativity | David Deutsch

Theoretical physicist David Deutsch delivers a mind-bending meditation on the “great monotony” — the idea that nothing novel has appeared in the universe for billions of years — and shows how humanity’s capacity to create explanatory knowledge could be the thing that bucks this trend. “Humans are not playthings of cosmic forces,” he says. “We are users of cosmic forces.”

Revelations from a lifetime of dance | Judith Jamison and members of the Alvin Ailey American Dance Theater

“Dance can elevate our human experience beyond words,” says Judith Jamison, artistic director emerita of the Alvin Ailey American Dance Theater. In between performances of excerpts from Alvin Ailey’s classic works “Revelations” and “Cry,” Jamison reflects on the enduring power of dance to transform history into art that thrills audiences around the world. (Performances by Solomon Dumas, Samantha Figgins and Constance Stamatiou)

How we're using DNA tech to help farmers fight crop diseases | Laura Boykin

Nearly 800 million people worldwide depend on cassava for survival — but this critical food source is under attack by entirely preventable viruses, says computational biologist and TED Senior Fellow Laura Boykin. She takes us to the farms in East Africa where she’s working with a diverse team of scientists to help farmers keep their crops healthy using a portable DNA lab and mini supercomputer that can identify viruses in hours, instead of months.

What Bruce Lee can teach us about living fully | Shannon Lee

Most of us know Bruce Lee as the famous martial artist and action film star — but he was also a philosopher who taught “self-actualization”: the practice of how to be yourself in the best way possible. In this inspiring talk, Bruce’s daughter Shannon Lee takes us inside the mind of her father, exploring how to use his philosophy in your daily life to achieve profound personal growth and make a lasting impact.