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Category: space – Page 974

A 3D-printing company is aiding NASA by using its additive manufacturing technology to create an accurate replica of a meteorite located 34 million miles from Earth.

Measuring approximately 2 feet in length, the meteorite known as Block Island was first discovered on Mars by the Exploration Rover Opportunity in 2009. Studying it is an important part of furthering our knowledge about Mars and other planets, but at present the prospect of bringing it to Earth to examine u close is out of the question.

Fortunately, the Mars rover was able to take images and measurements to transmit back home, and this data has now been used by Mcor Technologies, an Ireland-based 3D-printing company, to create a life-size Block Island model.

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A NASA-funded study has solved a longstanding mystery over the origin of X-rays that permeate space in our Solar System, but in doing so, it’s also discovered an entire group of high-energy X-rays that can’t be explained.

The research comes from a new analysis of data recorded by NASA’s DXL rocket mission, which took flight in 2012 to settle the question of what creates these low-energy X-ray emissions – called the diffuse soft X-ray background – in our corner of the galaxy.

At the time, there were two central hypotheses. X-ray emissions were known to come from solar wind, but scientists also thought they might originate from what’s called the Local Hot Bubble – a theorised region of hot gas that envelops our Solar System. But which was correct?

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According to the Kardashev scale, a Type III civilization is a society that has managed to harness (and control) the energy output of a galaxy. Here’s what that means.

To measure the level of a civilization’s advancement, the Kardashev scale focuses on the amount of energy that a civilization is able to harness. Obviously, the amount of power available to a civilization is linked to how widespread the civilization is (you can’t harness the power of a star if you are confined to your home planet, and you certainly can’t harness the power of a galaxy if you can’t even get out of your solar system).

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Reaction Engines is firming up plans to build a fighter engine-size ground demonstrator of its reusable hypersonic propulsion system.

SABRE is at heart a rocket engine designed to power aircraft directly into space (single-stage to orbit) to allow reliable, responsive and cost effective space access, and in a different configuration to allow aircraft to cruise at high speeds (five times the speed of sound) within the atmosphere.

If the rocket for space is not used then the US air force could use Skylon and SABRE engine technology to develop a 4000 mph hypersonic fighter plane or spy plane.

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