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This experiment on the International Space Station (@iss) hopes to find out. Space-grown plants look mostly normal, but have some distinct features compared to plants grown on Earth – most notably in the way their roots grow. Roots evolved to grow “down” to search out nutrients and water, and on Earth, that response is predominantly governed by the force of gravity. But how does a plant know which way is down when there is no “down”? What determines the direction in which the plant’s roots should grow in space? We are studying the molecular genetic signals that help guide plant growth in the novel environment of spaceflight, including how plants use new molecular “tools” to sense and respond to their environment when familiar signals are absent. What we learn could improve the way we grow plants in microgravity on future space missions, enabling crews to use plants for food and oxygen. This is just one of many petri plates filled with tiny plants from the Characterizing Arabidopsis Root Attractions-2 (CARA-2) that was recently harvest aboard the space station. Credit: NASA
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If administered promptly enough, naloxone can chemically reverse an opioid overdose and save a person’s life. However, timing is critical–quicker administration of the medication can not only save a life, but also reduce the chances that brain damage will occur.

In exploring new ways to administer naloxone faster, a team of researchers has harnessed an effective, community-based approach. It involves an app for volunteers, who receive an alert when another app user nearby indicates that an overdose is occurring and naloxone is needed. The volunteers then have the opportunity to respond to the request.

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“I’ve never seen a better time for this industry,” said Mark Edelstone. “Chips are cool again.”

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