15 Jul Space: Mars Sample Return by BoldlyGo Institute

[caption id="attachment_42" align="alignleft" width="300"]SCIM will journey to Mars and perform a high-speed atmospheric pass collecting Martian dust particles. With its precious cargo onboard, SCIM will return the samples to Earth for detailed analysis in advanced technology laboratories. Source: BoldlyGo Institute In 2020, SCIM will embark on a two year journey to Mars to perform a high-speed atmospheric pass collecting tiny dust particles. SCIM will take another half year to return the samples to Earth for detailed analysis. Source: BoldlyGo Institute[/caption]

A nonprofit corporation called BoldlyGo Institute (BGI) is developing a Mars Sample Return mission called the Sample Collection to Investigate Mars (SCIM) which will return the first samples of Martian materials back to Earth. The project is at the preliminary design stage and the goal is ambitious. With a launch date of July 26, 2020, SCIM will journey through space for two years. When it reaches Mars, it will swoop down and collect the dust particles from the Martian atmosphere below 40 km. The SCIM has an aerodynamic aeroshell allowing it to rapidly pass through the atmosphere without being captured by Mars's gravity. The sample capture mechanism for the Mars Sample Return Mission is similar to the successful collection system for the Stardust mission which used aerogel to capture dust particles. After collecting thousands of particles, the spacecraft will leave Mars on August 3, 2022 and return directly to Earth by February 1, 2023 where the sterilized samples will descend by parachutes to the ground.

Sample return offers advantages over the current and past robotic missions to Mars where samples have been only analyzed on Mars. Earth-based lab instruments are much more sophisticated than what can be packed into a Mars rover or lander allowing much greater detailed analysis. Furthermore, there is no time limit for analysis; as more advanced instruments are developed, they can be applied on curated samples. Lastly and perhaps speaking most intriguingly of BoldlyGo Institute's philosophy, participation can involve hundreds of scientists and students--many of whom may not be traditionally involved in the Mars science community. Interested in more of my posts and other writings outside of Impact Hound? Follow me on Twitter: @shenge86
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09 Jul Space: Mechanical Launch Vehicle by HyperV

SlingatronA company called HyperV Technologies Corporation based in Chantilly, Virgina, USA, is working on a mechanical launch vehicle called the Slingatron. The Slingatron is a mechanical hypervelocity mass accelerator which can be used to launch objects (also called payloads) into Earth orbit at a significantly lower cost than what's done today. Just like the early railroads which opened up remote areas here on Earth, the Slingatron mechanical launch vehicle can open up the next frontier, i.e. space. Launching into low earth orbit (LEO) requires accelerating a payload to 7.6 km/sec. Traditional approaches use rocket fuel which is terribly inefficient leading to only about 4% of the rocket mass for payload while the other 96% is for rocket fuel and giant propellant tanks. Slingatron negates the need for rocket fuel or fuel tanks. The Slingatron does this by a mechanical acceleration approach much like a classical sling. In the traditional case, a man twirls the sling above his head in an outward spiral accelerating the stone. In the Slingatron case, a mechanical motor does the same thing while the payload is on an outwardly spiraling railroad track that is mounted to the mechanical motor. Interested in more of my posts and other writings outside of Impact Hound? Follow me on Twitter: @shenge86
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