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An American born in 2017 is expected to live to be 78.6 years old, according to data from the CDC’s National Center for Health Statistics. That’s one-tenth of a year lower than the previous year, or, put another way, it shaves 1.2 months off the life expectancy of a baby born in 2016. Life expectancy dropped from 2014 to 2015, then held steady in 2016, the CDC said.

The decline is a troubling sign for the United States, which already usually ranks lowest among other wealthy countries for life expectancy.

The top three causes of death, unchanged from previous years, were heart disease, cancer and unintentional injuries. The report attributed the drop in life expectancy to increases in mortality from unintentional injuries, which includes most fatal drug overdoses, among other factors.

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NASA’s OSIRIS-REx Asteroid Sample Return Mission flew over two billion miles through space to meet you. Here, the spacecraft’s camera captures a full rotation of the asteroid from only about 50 miles away: https://go.nasa.gov/2rhr6a3&h=AT1i_D7IINmmgUy-jZJD7S-NBK6d4F…dBHOk_2iFA OSIRIS-REx will study Bennu for almost a year and eventually select a location to collect a sample to return to Earth. #WelcomeToBennu

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Well, there’s some great news for Virgin Galactic as it prepares for an attempt to send SpaceShipTwo to space. The Fédération Aéronautique Internationale (FAI), which maintains records for aviation and spaceflight, is considering lowering the boundary of space from 100 to 80 km (62.1 to 47.7 miles).

Virgin Galactic’s SpaceShipTwo probably can’t reach the 100 km boundary, which is also known as the Karman line.

FAI issued the following statement last week:

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