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Big Sibling's Big Influence: Some Behaviors Run In The Family

Psychologists have long known that children often model their behavior on the actions of parents or peers. But science has only recently begun to measure the influence of siblings. An older brother's or sister's behavior can be very contagious, it turns out — for good and for bad.
NPR

Virgin Galactic's SpaceShipTwo Passes First Rocket Test

The space tourism company says the vehicle hit Mach 1.2 and reached 56,000 feet in its first rocket-powered test.
NPR

First He Invented The Phone. Then, Bell Left A Voice Message.

We finally know what the inventor of the telephone sounded like. Last week, the Smithsonian unveiled recordings of Alexander Graham Bell's voice from 1885. It's the first known recording of him speaking.
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Navy Sonar Criticized For Harming Marine Mammals

The U.S. Navy is planning to expand training exercises off California and Hawaii, citing the need for military readiness. That's raising concerns about threatened whales and marine mammals, because sonar is known harm and, in some cases, kill them. The state of California is fighting the Navy's plan.
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Freaky Friday: Autonomous Tissue Grabbers Are On Their Way

Scientists have deployed hundreds of tiny, experimental robots to help with biopsies. They're as small as a speck of dust. They look like tiny ninja throwing stars. And researchers use magnets to retrieve them.
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Failure Of Latest HIV Vaccine Test: A 'Huge Disappointment'

An oversight committee halted a big clinical study of an experimental HIV vaccine after a peek at preliminary results showed there was no way the study would be able show the vaccine works. More vaccinated people became infected with HIV than those who got placebo shots.
NPR

Utah's Fossil Finds Describe an Ancient World

Once upon a time, giants roamed the planet — many of them in what is now Utah. A panel of paleontology experts describes some of the state's ancient treasures, from massive long-necked sauropods to the Utahraptor, a predator that would put those in Jurassic Park to shame.
NPR

James Webb Space Telescope Wings It

The James Webb Space Telescope will succeed Hubble in 2018, boasting modern computers and a mirror with seven times the viewing area. Bob Hellekson, ATK Program Manager for the telescope, discusses the telescope's newly constructed wings, designed to support the telescope's folding mirror, and astrophysicist Stacy Palen talks about what the telescope may reveal about the cosmos.

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