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a brief departure from the typical posts here…

while i try not to include my personal work in subtilitas, readers may have noticed content has been a little sparse here lately, largely due to a few large projects wrapping up. one of which is a book i’ve been involved with through the cactus store, which was just released this week.

xerophile is a compendium of desert plant and habitat photography three years in the making. a selection of over five hundred photographs of arguably the rarest and most bizarre plants on earth, photographed in their remote natural habitats over the past 80 years by a global cadre of obsessed cactus aficionados made up of both the amateur and the professional—from phd. botanist to banker, art teacher to cancer researcher. aside from the field photography, we’ve also included several interviews with the explorer’s themselves, who’s stories only add to the mystique of their images. 

posts should begin to be more regular next week. thanks as always for reading.

Navigating Space by the Stars

A sextant is a tool for measuring the angular altitude of a star above the horizon and has helped guide sailors across oceans for centuries. It is now being tested aboard the International Space Station as a potential emergency navigation tool for guiding future spacecraft across the cosmos. The Sextant Navigation investigation will test the use of a hand-held sextant that utilizes star sighting in microgravity. 

Read more about how we’re testing this tool in space!  

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The total solar eclipse which crossed from Alaska to Texas spurred many to make the trip West in 1878. Dr. Henry Draper, a medical doctor and former chair of physiology at New York University, assembled a group who watched the eclipse from the railroad outpost of Rawlins, Wyoming Territory and made some observations.

Women's Writing of Ancient Mesopotamia (New Book!)

A new book has just been released by Cambridge University Press entitled Women’s Writing of Ancient Mesopotamia An Anthology of the Earliest Female Authors!

It is an anthology of translations from the ancient Near East of various writings by women.  The translations include letters, religious hymns, inscriptions, prophecies, and various other types of texts.  All of them considered some of the earliest examples of writing done by women in history.  The only downside is that the book is quite expensive right, but hopefully that will change in the future and/or a paperback edition will soon follow.

You can purchase it from Cambridge’s site, (even their U.K. site), or on Amazon where the Kindle is somewhat less expensive.

Regardless this is one of the best additions to ancient Near Eastern scholarship in recent years.

~Hasmonean

Ain't we?

6/10 favorite quotes - Big damn heroes, sir.

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The X-Files Season 11 - 90s print ads inspired

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Helicopters Arrive at National Archives for Exhibit Opening

Last night, the North Carolina Vietnam Helicopter Pilots Association installed three Vietnam War-era aircraft on the lawn of the US National Archives. The Vietnam veterans will be giving tours of the helicopters starting today and the “Remembering Vietnam” exhibit opens to the public this Friday, November 10.

Read more about the exhibit opening here. See a timelapse of the helicopter installation on the National Archives Foundation Facebook page. 

Always a better tomorrow

A Hitchhiker’s Ride to Space

This month, we are set to launch the latest weather satellite from the National Oceanic and Atmospheric Administration (NOAA). The Joint Polar Satellite System-1, or JPSS-1, satellite will provide essential data for timely and accurate weather forecasts and for tracking environmental events such as forest fires and droughts.

Image Credit: Ball Aerospace

JPSS-1 is the primary satellite launching, but four tiny satellites will also be hitchhiking a ride into Earth orbit. These shoebox-sized satellites (part of our CubeSat Launch Initiative) were developed in partnership with university students and used for education, research and development. Here are 4 reasons why MiRaTA, one of the hitchhikers, is particularly interesting…

Miniaturized Weather Satellite Technology

The Microwave Radiometer Technology Acceleration (MiRaTA) CubeSat is set to orbit the Earth to prove that a small satellite can advance the technology necessary to reduce the cost and size of future weather satellites. At less than 10 pounds, these nanosatellites are faster and more cost-effective to build and launch since they have been constructed by Principal Investigator Kerri Cahoy’s students at MIT Lincoln Laboratory (with lots of help). There’s even a chance it could be put into operation with forecasters.

The Antenna? It’s a Measuring Tape

That long skinny piece coming out of the bottom right side under MiRaTA’s solar panel? That’s a measuring tape. It’s doubling as a communications antenna. MiRaTA will measure temperature, water vapor and cloud ice in Earth’s atmosphere. These measurements are used to track major storms, including hurricanes, as well as everyday weather. If this test flight is successful, the new, smaller technology will likely be incorporated into future weather satellites – part of our national infrastructure.

Tiny Package Packing a Punch MiRaTA will also test a new technique using radio signals received from GPS satellites in a higher orbit. They will be used to measure the temperature of the same volume of atmosphere that the radiometer is viewing. The GPS satellite measurement can then be used for calibrating the radiometer. “In physics class, you learn that a pencil submerged in water looks like it’s broken in half because light bends differently in the water than in the air,” Principal Investigator Kerri Cahoy said. “Radio waves are like light in that they refract when they go through changing densities of air, and we can use the magnitude of the refraction to calculate the temperature of the surrounding atmosphere with near-perfect accuracy and use this to calibrate a radiometer.” 

What’s Next?

In the best-case scenario, three weeks after launch MiRaTA will be fully operational, and within three months the team will have obtained enough data to study if this technology concept is working. The big goal for the mission—declaring the technology demonstration a success—would be confirmed a bit farther down the road, at least half a year away, following the data analysis. If MiRaTA’s technology validation is successful, Cahoy said she envisions an eventual constellation of these CubeSats orbiting the entire Earth, taking snapshots of the atmosphere and weather every 15 minutes—frequent enough to track storms, from blizzards to hurricanes, in real time.

Learn more about MiRaTA

Watch the launch!

The mission is scheduled to launch this month (no sooner than Nov. 14), with JPSS-1 atop a United Launch Alliance (ULA) Delta II rocket lifting off from Space Launch Complex 2 at Vandenberg Air Force Base in California. You’ll be able to watch on NASA TV or at nasa.gov/live.

Watch the launch live HERE on Nov. 14, liftoff is scheduled for Tuesday, 4:47 a.m.! 

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.