Lifeboat Foundation: Safeguarding Humanity
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Category: space – Page 1,057

Private spaceflight company Blue Origin, helmed by Amazon founder Jeff Bezos, says it has landed its main rocket, New Shepard, back on Earth after launch. That would make it the first rocket ever to have gently landed and remained intact after taking off into space. It also means that Blue Origin has beaten SpaceX in the race to make the first reusable rocket; the Elon Musk-led space venture has been trying to soft-land its main rocket, the Falcon 9, for the past year.

To commemorate the landing, Bezos tweeted for the first time since setting up his Twitter account seven years ago.

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SpaceX received orders Friday from the US space agency to send astronauts to the International Space Station in the coming years, helping restore US access to space, NASA said.

The announcement was a formal step in a process that began earlier this year when Boeing was given the nod by NASA to send crew to the orbiting outpost by late 2017.

Both Boeing and SpaceX have received billions in seed money from NASA to restore American access to the ISS, after the US was retired in 2011.

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“The opportunity to be involved in such a project as a graduate student is an amazing opportunity,” said Anna Egner, who is leading the team’s effort to build a mock-up of the spectroscope for an actual payload package. “Having always been enchanted and intrigued by physics and astronomy, working on an instrument that might one day fly into space is awesomely exciting.”

The first commercial missions to nearby asteroids could launch as early as 2020, but it will be decades before asteroid mining begins in earnest. In the meantime, the new spectroscopic technology promises to provide planetary scientists with new details about the chemical composition of the asteroids, comets, moons and minor planets in the solar system: information that is certain to improve our understanding of how the solar system formed. In addition, it could become an important tool in the planetary defense arsenal because it can determine whether objects crossing Earth’s orbit are made from rock or ice.

Media Inquiries: David Salisbury, (615) 322-NEWS [email protected]

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A team has, for the first time, discovered how to produce ultra-thin “diamond nanothreads” that promise extraordinary properties, including strength and stiffness greater than that of today’s strongest nanotubes and polymer fibers. Such exceedingly strong, stiff, and light materials have an array of potential applications, everything from more-fuel efficient vehicles or even the science fictional-sounding proposal for a “space elevator.”

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According to international treaties, no country is allowed to own things like moons or asteroids. But what about a company?

A new bill would allow space mining companies to own pieces of space. Although they couldn’t own a whole asteroid, for example, the bill would ensure that space mining businesses would legally own the resources they extract from that asteroid.

Last week the bill passed in the Senate with a few amendments, and yesterday those amendments were accepted in the House of Representatives. Now the bill is off to the Oval Office, where space policy experts predict President Obama will sign it into law.

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It’s made of just 244 atoms.

In the nearly 400 years since the first submarine was invented, these underwater machines have become incredibly sophisticated. They’re armed and they’re really stealthy. We’re even planning on sending subs to oceans on distant moons. Trippy.

But now, a submarine is going where no submarine has gone before. To the molecular level. In a paper published this month in NanoLetters, researchers announced that they’ve invented a submarine so small that it’s made out of a single molecule.

The submarine is made of just 244 atoms, and can move through fluids with molecules of approximately the same size all around it.

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Futurist Christopher Barnatt is the author of two 3D printing books, and is well known in the 3D printing community. His latest book — “The Next Big Thing: From 3D Printing to Mining the Moon” — covers far more than additive manufacturing. But as “3D Printing” is in the sub-title, we thought we’d ask him what it is all about.

3Ders: “The Next Big Thing” is a very broad title, so can you tell us what the book covers?

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It may hurt your brain to think about it, but it appears that the answer is possibly to be yes, or at least the numbers are almost in the same ballpark.

Astrophysicists in fact set out to answer this question about a decade ago. It’s a complicated problem to solve, but it’s somewhat easier if you throw in a couple of qualifiers — that we are talking about stars in the observable universe; and grains of sand on the whole planet, not just the seashores.

The researchers started by calculating the luminosity density of a section of the cosmos — this is a calculation of how much light is in that space. They then utilized this calculation to guess the number of stars needed to make that amount of light. This was quite a mathematical challenge!

“You have to suppose that you can have one type of star signify all types of stars,” says astrophysicist Simon Driver, Professor at the International Centre for Radio Astronomy Research in Western Australia and one of the researchers who worked on the question.

“Then let’s suppose, on average, this is a normal mass star that gives out the normal amount of light, so if I know that a part of the universe is producing this amount of light, I can now say how many stars that would associate to.”

Now armed with a guess of the number of stars within a section of the cosmos, the next challenge was to work out the size of the cosmos. Given we know that the cosmos is 13.8 billion years old, we can suppose that we exist in a sphere 13.8 billion light years in volume. But there’s a catch: the universe is possibly immeasurable in size.

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