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Nov 5, 2018

SpaceX Rehearses Recovery of Astronauts During Ocean Landings, Builds Helipad on Ship

Posted by in categories: biotech/medical, space travel

SpaceX has started preparations for recovering International Space Station (ISS) astronauts during ocean touchdowns, conducting landing and patient loading rehearsals on their recovery ship GO Searcher.

NASA recently shared photos of the rehearsals on board GO Searcher, which has been upgraded with a medical treatment facility and a helipad in the center of the vessel.

SpaceX practiced how the helicopter will pick up astronauts and fly them to a nearby hospital, in case of a medical emergency.

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Nov 5, 2018

Scientists Are About to Redefine the Kilogram

Posted by in categories: engineering, particle physics, transportation

The kilogram is one of the most important and widely used units of measure in the world — unless you live in the US. For everyone else, having an accurate reading on what a kilogram is can be vitally important in fields like manufacturing, engineering, and transportation. Of course, a kilogram is 1,000 grams or 2.2 pounds if you want to get imperial. That doesn’t help you define a kilogram, though. The kilogram is currently controlled by a metal slug in a French vault, but its days of importance are numbered. Scientists are preparing to re define the kilogram using science.

It’s actually harder than you’d expect to know when a measurement matches the intended standard, even when it’s one of the well–define d Systéme International (SI) units. For example, the meter was originally define d in 1793 as one ten-millionth the distance from the equator to the north pole. That value was wrong, but the meter has since been re define d in more exact terms like krypton-86 wavelength emissions and most recently the speed of light in a vacuum. The second was previously define d as a tiny fraction of how long it takes the Earth to orbit the sun. Now, it’s pegged to the amount of time it takes a cesium-133 atom to oscillate 9,192,631,770 times. Again, this is immutable and extremely precise.

That brings us to the kilogram, which is a measurement of mass. Weight is different and changes based on gravity, but a kilogram is always a kilogram because it comes from measurements of density and volume. The definition of the kilogram is tied to the International Prototype of the Kilogram (IPK, see above), a small cylinder of platinum and iridium kept at the International Bureau of Weights and Measures in France. Scientists have created dozens of copies of the IPK so individual nations can standardize their measurements, but that’s a dangerous way to go about it. If anything happened to the IPK, we wouldn’t have a standard kilogram anymore.

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Nov 5, 2018

Ron Howard: Creating vision of a future Mars colony

Posted by in categories: habitats, space

To mark the second season of the television series Mars, Hollywood director Ron Howard talked to the BBC about creating a realistic depiction of the first human colonies on the Red Planet.

If humankind is to expand out into the Universe, then Mars is likely to be our first stepping stone. With an atmosphere largely consisting of carbon dioxide and temperatures that vary between 20C and −125C, the Red Planet isn’t exactly ideal for human occupation.

We’d have to adapt to living almost entirely within sealed habitats — so outdoors-y types need not apply.

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Nov 5, 2018

‘Nanostraws’ safely deliver molecules to human cells in seconds

Posted by in category: biotech/medical

Nanostraws could be a way to deliver molecules into many cells at once, which may one day improve gene therapy for cancer and other diseases.

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Nov 5, 2018

Astronomers spot one of the oldest stars ever

Posted by in category: space

Our Solar System is incredibly old by human standards. The Sun, sitting in the center, is thought to be just over 4.6 billion years old, which is an almost unfathomable amount of time to you and I. But it’s actually not all that impressive when it comes to stars.

A new survey of one particular star here in our own Milky Way galaxy reveals that it’s a whole lot older than anyone thought. In fact, it’s old enough to make our own star look like a youngster by comparison. The elderly star is called (deep breath) 2MASS J18082002–5104378 B, and what it lacks in a flashy name it more than makes up for in age. Astronomers now believe it to be an incredible 13.5 billion years old.

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Nov 5, 2018

Spacecraft Are About To Sample Two Asteroids Worth Over $83 Billion Combined

Posted by in categories: futurism, space

Two different spacecraft are currently preparing to swipe a hunk of two different asteroids that they’ve been journeying toward for the past few years. The asteroids could also be among the most profitable to mine for resources at some point in the future.

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Nov 5, 2018

Cell-Phone Radiation Can Cause Cancer in Rats. The Next Question: What Does it Mean For Humans?

Posted by in categories: biotech/medical, mobile phones

These results substantially change the debate on whether cell-phone use is a cancer risk at all.


The studies were nearly two decades in the making.

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Nov 5, 2018

Watch the First 8k Video Shot in Space

Posted by in category: space

The incredible 8k footage was shot at the International Space Station using a RED camera.

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Nov 5, 2018

Astronomers Once Watched a Star Turn Directly into a Black Hole

Posted by in category: cosmology

History is full of forgotten heroes. Sometimes that’s because somebody else got credit for their work. Sometimes it’s because they were women in a male-dominated world. And sometimes it’s because a couple of continents *cough* Western society *cough* decided they didn’t want to include them in the history books. Meet Ibn al-Haytham — the guy who basically invented Science with a capital S.

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Nov 5, 2018

A Ramp Contraption May Have Been Used to Build Egypt’s Great Pyramid

Posted by in category: futurism

The finding could help answer a longstanding question of how massive stone blocks were hauled into place.

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