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Scientist Carl Sagan said many times that “we are star stuff,” from the nitrogen in our DNA, the calcium in our teeth, and the iron in our blood.

It is well known that most of the essential elements of life are truly made in the stars. Called the “CHNOPS elements” – carbon, hydrogen, nitrogen, oxygen, phosphorous, and sulfur – these are the building blocks of all life on Earth. Astronomers have now measured of all of the CHNOPS elements in 150,000 stars across the Milky Way, the first time such a large number of stars have been analyzed for these elements.

“For the first time, we can now study the distribution of elements across our Galaxy,” says Sten Hasselquist of New Mexico State University. “The elements we measure include the atoms that make up 97% of the mass of the human body.”

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One of the most powerful observing instruments on Earth, the Very Large Telescope, will join the search for potentially habitable planets around the Alpha Centauri star system.

The survey will take place in 2019 under the terms of an agreement signed by the European Southern Observatory, which operates the VLT in Chile, and by the Breakthrough Initiatives.

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Luv this; definitely a great role model to young girls everywhere.


This was the first of two spacewalks astronauts will perform this month to finalize the replacement of 12 old nickel-hydrogen batteries six with new lithium-ion batteries.

Kimbrough is wearing the suit bearing red stripes marked as EV1 member 1, but Whitson is wearing the suit with no stripes, marked EV2, member 2.

NASA is sending an African-American astronaut to the International Space Station for the first time. Built by Swales Aerospace Inc., it is the staple of NASA’s space tool arsenal.

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What should Donald Trump have NASA do? Today Amazon billionaire Jeff Bezos voiced his support for the idea that the space agency should help build a “highway in the sky” analogous to the interstate highway system that President Dwight Eisenhower ramped up in the 1950s.

The backing came in the form of an eight-word tweet, accompanied by a link to an article by Howard Bloom appearing in Salon (and as a guest blog posting on Scientific American’s website as well).

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