Archive for April, 2018

Credit: Archway Publishing

The Outsider’s Guide to UFOs by James T. Abbott, Archway Publishing, Bloomington, Indiana; December 2017; 370 pages, Softcover(B/W), $22.99.

Author James Abbott has taken an impartial look at the baffling and bewildering phenomenon – Unidentified Flying Objects (UFOs). The volume is a good read with the author taking on core questions that surround and cloud the UFO field. Are they hoaxes, figments of the imagination, or real?

Abbott is an experienced researcher who has spent years studying this timeless debate as an outsider. “UFOs may or may not be of this Earth and time,” he explains, “but the huge job of trying to nail them down is incredibly fascinating.”

Through 19 informative chapters, Abbott notes early UFO sightings, government investigations, mass sightings, and also outlines what skeptics say and points to possible explanations for UFOs. The volume outlines 40 of the most significant UFO cases, as well as over a dozen strange UFO characteristics.

Courtesy: James T. Abbott

I found the book’s last chapter – “The Way Forward” – particularly compelling. As Abbott concludes, the UFO field is full of theories and conjectures. “Are they unknown atmospheric and electromagnetic phenomena, little-understood social or psychological forces, extraterrestrial visitors, interdimensional tourists, fantastic mental projections? Who knows…yet?”

For those of us that have followed the case for UFOs, or lack of a case, believer or non-believer, the reader will find this book a fruitful, thought provoking read.

For more information on this book, also available as a casebound hardcover or E-Book. go to:

https://www.archwaypublishing.com/Bookstore/BookDetail.aspx?BookId=SKU-001136570

The Earth straddling the limb of the Moon, as seen from above Compton crater.
Credit: NASA/GSFC/Arizona State University

Carnegie Mellon University’s CREATE Lab has established an EarthTime website. It enables users to interact with visualizations of the Earth’s transformation over time.

Combining huge data sets with images captured by NASA satellites between 1984 and 2016, EarthTime brings to life patterns of natural change and human impact.

Rapid urbanization

For example, city growth can be studied with land imagery and lights visible from space at night. An EarthTime user can compare how cities across the world accommodate for rapid urbanization by growing both outward and upward.

Users of EarthTime can view compelling animations accompanied by fact-based narratives from international experts.

Drawing upon EarthTime’s vast data library, the stories are curated in honor of Earth Day 2018. Explore stories to learn more about our collective impact on the planet.

“EarthTime is a means to tell stories. The impact of humanity can be seen globally and in individual communities. You really can’t understand climate change, migration or major social and political trends without examining their connections across time, across space and between each other. EarthTime enables you to do that,” explains Illah Nourbakhsh, Director – CREATE Lab.

To make use of EarthTime, go to:

https://earthtime.org/#

Credit: CSPS

 

Aerospace’s Center for Space Policy and Strategy (CSPS) released a new policy paper that explores future opportunities in cislunar space—essentially, the space inside the moon’s orbit and the orbital area around the moon.

The policy document — Cislunar Development: What to Build— and Why –discusses the possible applications for cislunar space—for example, outposts on the moon, extraterrestrial mining operations, interplanetary waystations—and determines the infrastructure that will be needed to realize those ambitious goals.

Underdeveloped resource

Author James Vedda, senior policy analyst with CSPS, says that the cislunar region remains a largely underdeveloped resource, and any coherent, long-term strategy for space commerce and exploration will need to make better use of it.

Credit: NASA

“An enduring, multi-purpose space infrastructure means more than just rockets and spacecraft,” explains Vedda. “It needs a wide range of capabilities, such as inter-orbital transportation, on-orbit servicing, standardization, fuel storage, energy distribution, communication and navigation services, resource extraction, and materials processing.”

The Center is part of The Aerospace Corporation, a nonprofit that provides objective advice to the government on complex space enterprise and systems engineering problems.

To access the policy paper, go to:

http://aerospace.wpengine.netdna-cdn.com/wp-content/uploads/2018/04/CislunarDevelopment.pdf

Official SpaceX OTV-5 mission patch.
Credit: SpaceX

 

 

 

 

 

The classified U.S. Air Force X-37B space plane program is now flying its Orbital Test Vehicle (OTV-5) mission. Skywatchers are reporting the craft recently made an orbital altitude change.

OTV-5’s space jaunt began on September 7, 2017. To date, the orbiting craft has chalked up some 225 days of flight.

Here’s a view of OTV-5 on April 19, 2018 taken by Tristan Cools of the Belgian Working Group Satellites at:

https://drive.google.com/open?id=1hByWFGaatbAUSvMyeqdQsQnaw82AV0Iu

The U.S. Air Force’s X-37B Orbital Test Vehicle 4 is seen after landing at NASA ‘s Kennedy Space Center Shuttle Landing Facility in Florida on May 7, 2017.
Credit: U.S. Air Force courtesy photo

 

 

 

 

 

 

 

 

 

Also, the OTV-5 craft passing in front of the Moon was acquired by Kevin Fetter, an amateur Canadian satellite spotter in Brockville, Ontario and can be viewed at:

https://www.youtube.com/watch?v=6L0aP7my_P4&feature=youtu.be

 

Curiosity Front Hazcam Right B image taken on Sol 2027, April 15, 2018.
Credit: NASA/JPL-Caltech

 

 

NASA’s Curiosity Mars rover in carrying out Sol 2028 science duties.

Reports Scott Guzewich, an atmospheric scientist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland: “This was a week of transition for Curiosity’s environmental science team. The cloudy season on Mars has ended as we’ve seen a marked decrease in water ice cloud activity in our Navcam sky movies over the last several weeks and we’re moving quickly into the dusty season on Mars.”

Curiosity Navcam Left B photo acquired on Sol 2027, April 19, 2018.
Credit: NASA/JPL-Caltech

Guzewich adds that the Mars science team will now be drastically reducing the frequency in which they search for clouds and instead focus their attention on dust devils and storms.

Dustier atmosphere

“The atmosphere is beginning to get dustier, as seen by the hazy look of the northern rim in Gale Crater,” Guzewich adds. “Indeed, we began preplanning our annual campaign to study a potential global dust storm, if and when such a storm develops this year. The dusty season on Mars, roughly the second half of the martian year, runs from the end of May until February next year, and we’ll be monitoring closely for the signs that a global dust storm (the last of which occurred way back in 2008!) is developing,” he points out.

Curiosity Navcam Left B image taken on Sol 2027, April 19, 2018.
Credit: NASA/JPL-Caltech

 

Southern spring equinox

On Mars, routine business continued as the science team performed a “touch-and-go” plan with Mars Hand Lens Imager (MAHLI) images of rock targets “Hawick”, “Kemnay”, and “Buchan”, before driving toward the robot’s next destination.

The plan calls for Curiosity to take two movies to look for dust devils and two more Mastcam image sequences to monitor the (increasing) amount of dust in the atmosphere as the rover moves toward southern spring equinox, Guzewich concludes.

New map

Credit: NASA/JPL-Caltech/Univ. of Arizona

A new Curiosity traverse map shows the rover’s whereabouts through Sol 2027.

The map shows the route driven by NASA’s Mars rover Curiosity through the 2027 Martian day, or sol, of the rover’s mission on Mars (April 20, 2018).

Numbering of the dots along the line indicate the sol number of each drive. North is up. The scale bar is 1 kilometer (~0.62 mile).

From Sol 2023 to Sol 2027, Curiosity had driven a straight line distance of about 279.70 feet (85.25 meters), bringing the rover’s total odometry for the mission to 11.68 miles (18.79 kilometers).

The base image from the map is from the High Resolution Imaging Science Experiment Camera (HiRISE) in NASA’s Mars Reconnaissance Orbiter.

Earth-Moon L2 relay link.
Credit: CNSA

 

China is set to announce the name for its relay satellite associated with the country’s far side lander – Chang’e-4.

According to the China state news agency, Xinhua, together with the relay satellite, two microsatellites, developed by the Harbin Institute of Technology, will also be sent into orbit to conduct scientific research. The names of the two microsatellites will also be announced on April 24.

China’s Space Day on April 24 marks the day the country’s first satellite was sent into space in 1970.

Target: Aitken Basin

The Moon’s far side is the target for the Chang’e-4 lander/rover spacecraft. However, landing and roving on the far side, not visible from Earth, requires a relay satellite to transmit signals to the landed hardware.

Chang’e-4 Moon lander and rover.

The Xinhua news story notes that China plans to send the relay satellite to the halo orbit of the Earth-Moon Lagrange Point L2 in late May or early June 2018. The Chang’e-4 lunar lander and rover is to touch down within the Aitken Basin of the south pole region of the Moon about half a year later.

Dana Vaisler of StemRad wearing AstroRad vest prototype in front of Orion Capsule at Johnson Space Center. Note vest contours which correspond to enhanced protection around sensitive organs – bone marrow, colon, stomach, ovaries and breast tissue. Credit: StemRad.

NASA and the Israel Space Agency have signed an agreement for use of the AstroRad radiation protection vest on NASA’s Exploration Mission-1 flight.

AstroRad is the second product developed by StemRad, following the success of its first product, called StemRad 360 Gamma – the world’s first wearable shield that provides meaningful protection from harmful gamma radiation.

StemRad collaborated with NASA’s prime contractor for the Orion spacecraft, Lockheed Martin, to adapt its technology for use in space. StemRad is an Israeli-American company headquartered in Tel Aviv, Israel.

When venturing into lengthy, piloted deep space missions, the threat of radiation exposure is significantly higher, posing as one of the most significant dangers facing crew members.

An artist rendering of the Matroshka Radiation Phantoms – one protected with the AstroRad vest and one unprotected. Credit: StemRad

Trial test

Called the “Matroshka AstroRad Radiation Experiment”, or MARE for short, an EM-1 test will be comprised of two Matroshka test dummies – one naked and one wearing AstroRad. The Matroshkas, containing thousands of radiation detectors, will be supplied by the German Aerospace Center.

While EM-1 will not likely encounter a solar storm, the mission will pass through the Van Allen radiation belt – a zone of energetic charged particles that emanate from solar winds – providing an opportunity to test AstroRad in conditions similar to those found during a solar storm.

Ergonomically correct

When passing through the belt, the radiation sensors on the dummies will be on and will record readings during the passage. Should the trial be successful, AstroRad will be used on crewed missions to deep space.

Additionally, AstroRad is expected to be used aboard the International Space Station beginning in 2019 for advanced ergonomic studies in microgravity.

For more information on StemRad, go to:

www.stemrad.com

Go to: 54:30

Credit: CSIS

 

 

 

 

 

Aerospace Industries Association (AIA) sponsored Center for Strategic and International Studies (CSIS) Aerospace Security Project’s “Space Threat Assessment 2018” which aggregates the open-source information on counterspace capabilities for policymakers and the general public.

Go to:

https://aerospace.csis.org/wp-content/uploads/2018/04/Harrison_SpaceThreatAssessment_FULL_WEB.pdf

 

 

 

Credit: AIA

Also, AIA is launching “SKYFAIL: What Happens When America’s Satellites Go Down” highlighting American dependence on space capabilities and possible impacts of losing satellite connectivity.

Go to:

https://www.aia-aerospace.org/skyfail-americas-satellites-suddenly-go-down/

Curiosity Navcam Left B image taken on Sol 2023, April 15, 2018.
Credit: NASA/JPL-Caltech

NASA’s Curiosity rover is now performing Sol 2024 science duties.

Ken Herkenhoff, a planetary geologist; at the USGS in Flagstaff, Arizona reports that the rover completed a Sol 2020 drive, “placing the vehicle in a good position for contact science on the ‘Waternish’ conglomerate.”

Curiosity Navcam Left B image taken on Sol 2023, April 15, 2018.
Credit: NASA/JPL-Caltech

To sample the diversity of clasts in Waternish, the Sol 2022 plan included brushing two spots, a 5-point Alpha Particle X-Ray Spectrometer (APXS) raster, and lots of Mars Hand Lens Imager (MAHLI) imaging. But first on tap was use of the rover’s Chemistry and Camera (ChemCam) to laser shoot Waternish and the cobble behind it, named “Arrochar.”

Curiosity Mastcam Right image of rover brushes, taken on Sol 2022, April 14, 2018.
Credit: NASA/JPL-Caltech/MSSS

Complex arm activities

After Curiosity’s Dust Removal Tool (DRT) is finished brushing, MAHLI will acquire full suites of images of one of the brushed spots and of Arrochar, as well as a mosaic of images from 5 centimeters above the APXS raster spots and context images from 25 centimeters.

“Then APXS will go to work on Waternish, followed by placement on Arrochar for an overnight integration. This complex set of arm activities took longer than usual to plan, but should provide a rich dataset,” Herkenhoff notes.

Sandy ripple

Curiosity Front Hazcam Right B photo acquired on Sol 2023, April 15, 2018.
Credit: NASA/JPL-Caltech

On Sol 2023, the plan called for the rover’s Mastcam to take a full multispectral set of images of Waternish and a 3×3 mosaic of both Waternish and Arrochar.

ChemCam was to observe two more spots on Waternish, and the Right Mastcam will take an image of the ChemCam target selected by the robot’s exploration software on Sol 2021.

“Then the rover will drive backwards to a nearby sandy ripple, un-stow its arm, and acquire the images needed to plan close-up observations of the ripple. Overnight, APXS will again measure the amount of argon in the atmosphere,” Herkenhoff explains.

Dust and dust devils

On Sol 2024, the plan has the robot’s ChemCam gathering calibration data. Mastcam will measure the opacity of dust in the atmosphere, and Navcam will search for dust devils.

Curiosity Mars Hand Lens Imager (MAHLI) image produced on Sol 2023, April 15, 2018.
Credit: NASA/JPL-Caltech/MSSS

 

 

 

Lastly, APXS will perform a short thermal test and Curiosity’s Mars Descent Imager (MARDI) is to take another twilight image, Herkenhoff concludes. “Another busy weekend for our intrepid explorer!”

 

 

 

 

Traverse map

A recently released Curiosity traverse map through Sol 2020 shows the route driven by NASA’s Mars rover Curiosity through the 2020 Martian day, or sol, of the rover’s mission on Mars (April 13, 2018).

Credit: NASA/JPL-Caltech/Univ. of Arizona

Numbering of the dots along the line indicate the sol number of each drive. North is up. The scale bar is 1 kilometer (~0.62 mile).

From Sol 2017 to Sol 2020, Curiosity had driven a straight line distance of about 34.85 feet (10.62 meters), bringing the rover’s total odometry for the mission to 11.61 miles (18.69 kilometers).

The base image from the map is from the High Resolution Imaging Science Experiment Camera (HiRISE) in NASA’s Mars Reconnaissance Orbiter.

Griffith Observatory Event