What the world thinks spacecraft scientists/engineers do…

18 11 2014

Well, ramping up to the birth of our second child, (daughter Sloane on 08/05/14!), I’ve been completely absorbed by family by night and the incredible clip at work at Bigelow Aerospace by day.  -And amidst it all, I’ll admit that there is a visceral seduction in the elbow-grease-saturated chaos.

So, with this in mind, during one of my recent sleepless expanses I had the midnight inspiration to create a “What the World Thinks” meme.  It targets (with a little wry self-awareness) the increasing number of us toiling to break open spaceflight in the 21st Century the way pioneers did so for aviation in the early 20th:

WhatSocietyThinksIDo

Feel free to use/forward freely, and Semper Exploro!

Cheers,
Ben

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The Science Behind “Chasing UFOs” – Episode 2

30 06 2012
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Fieldbook sketch of possible crash sighting and survey sites outside of Fresno, CA. (Credit: Ben McGee)

For those who might like to delve more deeply into (or simply know more about the science behind) the second episode of National Geographic’s TV series “Chasing UFOs,” including industrial archaeology, cargo cults, radioactive tunnels, and orienteering troubles, check it out!

Direct link to my article on the NatGeo TV blog here:

http://tvblogs.nationalgeographic.com/2012/06/30/the-science-of-chasing-ufos-dirty-secrets/

Cheers!

Ben





Airships: A century from prototype to spaceflight?

24 02 2012

An airship that might have been, from "Sky Captain and the World of Tomorrow." (Credit: Paramount)

Airships.  There’s a certain nostalgic thrill to the streamline, art deco aircraft heyday that nearly was.

To the point (and as illustrated above): the Empire State Building’s observation tower was originally intended to serve as a mooring point for airships.

Achieving the power of flight by harnessing a buoyant gas is simple, reliable, quiet, low-velocity, and (after shifting away from using an explosive gas) veritably safe.  -And to many’s surprise, it might soon take us to space.

USS Shenandoah, U.S. Navy ZR-1, under construction in 1923.

Early 20th Century

Many don’t realize that the United States had airships in military service, which were outgrowths of a German design reverse-engineered after World War I.

For example, from 1922-1923, the first rigid airship, ZR-1 USS Shenandoah was constructed.  Several subsequent military airships flew under the American flag prior to World War II until they became tactically obsolete.

Early 21st Cenury

Now, after decades of work, volunteer-based aerospace firm JP Aerospace has its eyes set on an orbital airship as a gateway to the stars.

Ascender airship being serviced. (Credit: JP Aerospace)

How does it work?  The system is essentially 180-degrees apart from the rocket-and-fanfare, minutes-to-space spaceflight that we’ve all become accustomed to.  Instead, two separate classes of airships and a transfer station in-between slowly loft cargo to orbit over a matter of days.

The process is something they call “Airship-to-Orbit,” or ATO.

Essentially, an airship-to-orbit spaceflight program represents finesse versus conventional rocketry’s brute force.

Though there are still engineering challenges ahead, JP Aerospace is powering through tests of their magnetohydrodynamic thrusters and are continuing toward a stunning run of 67 high-altitude balloon and sensor platform ascents.

So, a century from prototype to spaceflight?  It certainly looks possible.  And if there truly is merit to the airship-to-orbit concept, based on how quickly JP Aerospace has been able to achieve flight benchmarks on a volunteer basis, then just imagine what could happen with serious backing by a government space agency.

Food for thought.

Personally, I love the architecture.  There’s something about truly alien competition to conventional spaceflight providers that I think is sorely needed.

Ascender 6000 on approach. (Credit: JP Aerospace)





SpaceX chasing rocketry’s Holy Grail

24 01 2012

As many who follow and support spaceflight are well aware, a Holy Grail of modern space transportation is the concept of the fully reusable rocket, or Reusable Launch System/Vehicle (RLV).  Now, NewSpace orbital spacecraft provider SpaceX might just have this elusive target squarely in its sights.

1950s-era painting of a Vertical Takeoff Vertical Landing, fully reusable spacecraft. (Credit: Chesley Bonestell Estate)

Many solutions have been suggested to achieve the true RLV space technology benchmark, which would herald a new era in space transportation by driving launch prices down at least an order of magnitude.  However, only a very few of these designs have lofted from the drawing board, and none have yet been successfully implemented.

Amongst these attempts are practically all of the famed, V-2 rocket-inspired Single Stage To Orbit (SSTO) concepts, such as those Vertical Takeoff, Vertical Landing (VTVL) rockets populating 1950s science fiction (right), as well as the Vertical-Takeoff, Horizontal Landing craft (VTHL) such as Lockheed’s Venturestar from the 1990s.   

However, SpaceX, which has a cargo contract with NASA in-hand, is showing no signs of taking a breath prior to their first demonstration flight to the International Space Station later this year.  Instead of the traditional, expendable rocket stages typical of space transportation, SpaceX is aiming to make their Falcon 9 rocket fully reusable (and has been quietly doing so since 2009). 

This bears repeating.  SpaceX plans to try and save their spent stages.

A SpaceX Falcon 9 rocket. (Credit: SpaceX)

A SpaceX Falcon 9 rocket. (Credit: SpaceX)

In a draft environmental assessment filed last fall, SpaceX calls the first reusable stage of the Falcon 9 the “Grasshopper,” and proceeds to generally describe potential launch and testing operations to be conducted from a test site in the city of McGregor, Texas.

The concept is simple.  With a little extra fuel, forethought, and extendable legs, each stage could conceivably guide its own return for a powered landing (video available here). 

(After all, the Lunar Lander Challenge is finding innovative solutions to this same vertical-landing problem from the other side of the conceptual fence.)

If successful, this forward drive from SpaceX could represent a watershed moment for conventional rocketry.  Perhaps, should Grasshopper prove the viability of the RLV, it will no longer be seen as permissible or competitive by launch providers to waste spent rocket stages.

Then, for the first time, we could see a substantial launch price shift along with the largest widening of the doorway to space since the 1960s.

Keep your eyes on this one.





Red-Letter Day: NASA Astronauts wanted; NSRC spaceflight giveaway

15 11 2011

Today has been quite a big day for aspiring astronauts:

NASA Seeks New Wave of Astronauts

Prototypical astronauts Tom Stafford and Alan Shepard Jr. studying a mission chart, Dec 1965. (Credit: NASA)

On one hand, NASA finally opened another selection announcement for the next class of astronauts.  Until the end of January 2012, anyone with the grit, drive, and the moxie to put their hat in the ring will be stacked up against the best of the best for a handful of new astronaut positions.

Contrary to what many believe in the post-Shuttle NASA environment, what awaits these future spacefarers is more than just maintaining the International Space Station, showing up at press appearances, and performing (much needed) education public outreach.  …NASA is also hard at work, developing a new, Apollo-style spacecraft intended for deep space missions (Orion MPCV) while exploring the possibility of using it to visit and explore near-Earth asteroids.

-Not to mention that these new astronauts will also be on the cusp of helping to break open a new era of commercial spaceflight.  (For more information on the many developments there, see CCDev to get started.)

Not a bad time to get involved, all things considered.

Spaceflight Giveaway for Next-Generation Suborbital Researcher

The XCOR Lynx suborbital vehicle. (Credit: XCOR Aerospace)

As if that weren’t excitement enough for the day, on the commercial spaceflight front, the Southwest Research Institute announced a partnership with XCOR Aerospace to offer a free suborbital spaceflight to one exceedingly lucky attendee at the next Next-Generation Suborbital Researcher’s Conference (NSRC)!

That’s right, a research seat in a spacecraft may be yours for the cost of attending and participating in the conference, slated for the end of February 2012.  The only obligations of the winner are to find their own way to the waiting spacecraft and create and provide an experiment for the trip.

The NSRC, the third conference of its kind, brings together commercial spaceflight industry pioneers, regulators, and both private and federal researchers to explore the opportunities and possibilities presented by the many private suborbital spacecraft currently in development.

For more info, visit nsrc.swri.org – and sign up!  (I can speak from personal experience: the conference last year was thrilling to those for whom spaceflight and microgravity research holds an appeal.)





NASA exploration goal to be announced

24 05 2011

Artist's concept of anchoring to the surface of an asteroid. (Credit: NASA)

A NASA media advisory released yesterday alerted the world to what may be a landmark announcement later this afternoon.  Specifically, the advisory states that an agency decision has defined the need for a human “deep space” transportation system.

What does this tell us?  Well, if we visit NASA’s exploration website, the first story would have us believe that we’ve decided to adopt Lockheed Martin’s Stepping Stones exploration plan (see previous story here).  -Will the announcement reveal that we’ve committed to venturing to an asteroid?

Check out the streaming audio feed here at 3:30 p.m. EDT today to find out.  (And cross your fingers.)





Russia announces new Nuclear Rockets for manned Mars trip

16 04 2011

1960s Aerojet General rendering of a nuclear rocket in flight configuration.

For the first time in possibly four decades, two electrifying space technology phrases have managed to show up in the same sentence in earnest.  Quietly nestled in the murky details of a somewhat thrilling AP news story about a potential new Russian spacecraft to be produced in the next few years are the words: “manned mission to Mars,” and, “new nuclear engines.”

This is fantastic, as “nuclear engines” can only mean a resurrection of the triumphant nuclear thermal rocket technology pioneered and successfully tested during the Cold War.

Why is this significant?  First, U.S. and Russian testing of nuclear rockets during the Cold War proved not only that the relatively simple technology worked, but that it was amazingly efficient.  So efficient, in fact, that the rockets tested under the NERVA Program are still twice as powerful as our best rockets today, (half-a-century later!).  Secondly, these rockets are of the weight and power necessary to significantly trim down travel times and make interplanetary manned missions feasible.

So, if the nuclear rocket technology is superior, why don’t we have this technology today?  Well, politics and paranoia led to the death of the nuclear rocket back in 1972, when:

  1. a new project called the Space Shuttle drew funding away from the NERVA Program and set our course in space exploration for Low Earth Orbit (LEO) instead of back to the Moon and Mars, and
  2. in the Cold War nuclear holocaust climate, the word “nuclear” became (understandably) a source of irrational fear.

Only a few experts remain alive who worked in the thick of original nuclear thermal rocket research and testing, and with NewSpace set to take over LEO cargo and crew transportation services, it is time to set our sights back on the more ambitious goals of lunar settlements and expanded human exploration of the solar system.  Nuclear thermal rockets will be the technology to take us there.  The Russians apparently realize that, and perhaps an international kick in the pants is what the U.S. research and industrial community needs to realize that it’s time to pick this research back up.

A nuclear arms race between the U.S. and Russia nearly ended the world.  It seems a fitting contrast that in the 21st Century, a nuclear space race between the U.S. and Russia could help humanity settle new ones.








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