Archive for February, 2017
A novel approach to creating a reusable solar electric space (SEP) “tug” for toting payloads to the Moon, Mars or elsewhere is dubbed “Sunflower” – a Modular, Hexagonally Symmetric, SEP Cargo Transport Spacecraft.
Sunflower was the winner in NASA’s 2017 BIG Idea Challenge, a concept forged by students from Tulane University.
The Sunflower’s structure, power, and navigation systems are distributed across a large surface composed of 12 identical and connected modules. Each module contains an independent set of solar panels, fuel, propulsion, and navigation systems.
To form a 200 kilowatt array, the required surface area of solar panels is roughly 800 meters.
The modules of the Sunflower are launched in two separate launch vehicles and aggregate in low Earth orbit within 60 days.
Sunflower modules are connected via reversible electro-permanent magnet joints, and a secondary mechanical locking mechanism. This docking technique eliminates the need for a secondary robotic assembly entirely.
The power, mass, and thrust of the tug is proportional to the number of modules connected. Additional modules can be added to the Sunflower to achieve more power. Unwanted modules can be jettisoned from the Sunflower and replaced by new modules, allowing for operational refurbishment.
NASA’s Idea Challenge is a university-level design competition sponsored by NASA’s Space Technology Mission Directorate, managed by the National Institute of Aerospace (NIA), and hosted by NASA’s Langley Research Center in Hampton, Virginia.
The United Kingdom has put in motion a draft Spaceflight Bill, promoting the construction and operation of spaceports across the UK for the first time, as well as giving the go for spacecraft to be rocketed spaceward from British soil.
Tariq Ahmad, aviation minister, said: “We have never launched a spaceflight before from this country. Our ambition is to allow for safe and competitive access to space from the UK, so we remain at the forefront of a new commercial space age.” The UK’s space sector is the future of the British economy, he added.
Safe and cost-effective access to space
The bill has been presented to Parliament by the Secretary of State for Transport by Command of Her Majesty.
“This draft spaceflight legislation will be fundamental to enabling safe and cost-effective access to space from the UK so creating high-value jobs and economic benefits across the country. It is important we get this complex new legislation right to create a safe, competitive and sustainable commercial spaceflight market,” notes the foreword to the bill.
To review the draft UK bill, go to:
Mars attacks…this time in a new movie called Life.
To be released in the U.S. on March 24, the going-in theme as advertised for Life is that an international space crew discovers life on Mars.
That’s the good news.
But the delivery package of samples to their spacecraft from the Red Planet has an edgy side.
As one poster for the movie notes: “Be careful what you search for.”
This horror, sci-fi thriller features actors Rebecca Ferguson, Jake Gyllenhaal, and Ryan Reynolds. The film is directed by Daniel Espinosa known for Safe House (2012), Child 44 (2015) and Easy Money (2010).
At quick glance, the film appears part Andromeda Strain and Alien – but the outcome is TBD.
According to early details from Sony pictures, Life tells the story of the six-member crew of the International Space Station that is on the cutting edge of one of the most important discoveries in human history: the first evidence of extraterrestrial life on Mars.
As the crew begins to conduct research, their methods end up having unintended consequences and the life form turns out to be more intelligent than anyone ever expected.
The production company for Life is Skydance and will be distributed by Columbia Pictures.
To view a Life movie trailer, go to:
The United Arab Emirates has the Red Planet in its sights, not only moving forward on a Mars orbiter but also establishing the first inhabitable human settlement on the planet by 2117.
Space visionary, His Highness Sheikh Mohammed bin Rashid Al Maktoum, is Vice President, Prime Minister and Ruler of Dubai. He recently unveiled, along with Deputy Supreme Commander of the UAE Armed Forces, His Highness Sheikh Mohamed bin Zayed Al Nahyan, the “Mars 2117 Project” during the 5th World Government Summit, held February 12 to 14 in Dubai.
“The landing of people on other planets has been a longtime dream for humans. Our aim is that the UAE will spearhead international efforts to make this dream a reality,” Sheikh Mohammed bin Rashid Al Maktoum said.
According to the Government of Dubai Media Office website, the first phase of the project will focus on preparing the human cadres able to achieve scientific breakthrough to facilitate the arrival of human to the Red Planet in the next decades.
The Mars 2117 Project also aims to prepare an Emiratis scientists team and to develop an international scientific consortium to speed up the research project, the website explains. “The project will start with an Emiratis scientific team and will be extended to include international scientists and researchers, in addition to streamline the human efforts in term of exploring and settlement of the red planet.”
Lifestyle on Mars
The initiative also focuses on developing faster means of transportation to and from the Red Planet, along with integrating the scientific visualization the settlement itself, and how life will be sustained there in terms of such items as food, transportation and energy supplies.
Earlier, the website adds, an Emirati team of engineers, along with a group of scientists and researchers, have sketched out the first human city on Mars, one that would be built by robots. The plan showcased during the recently held summit highlighted the expected lifestyle on Mars in terms of transport, power production and providing food, as well as materials used for the construction of the city.
Meanwhile, UAE engineers are at work on building the “Hope” Mars orbiter. It is the Arab world’s and Muslim nation’s first spacecraft to the Red Planet in a scientific exploration mission to be lofted in 2020 via Japan’s H-2A booster.
Hope would arrive at Mars in 2021 to coincide with the 50th anniversary of the founding of the UAE. The orbiter’s science task is to search for connections between current weather and the planet’s ancient climate.
Orbital operations of the craft are to start mid-2021. Its primary science operations duration is two years, with a potential extended mission of two further years.
At the recent two-day Global Space Congress in Abu Dhabi, capital of the UAE, Hope is on track and on time, said Mohammed Al Ahbabi, director general of UAE Space Agency.
Go to this CCTV-Plus interview recorded during the UAE Global Space Congress:
There are indications of U.S. President Donald Trump shaping his space policy agenda.
Among those agenda items:
— His policies will be aimed at human exploration of the solar system.
— His policies will make NASA’s prime mission to reach beyond low earth orbit.
— He will turn over non-military and intelligence activities in low earth orbit (LEO) exclusively to the commercial sector.
— He intends to use private-public partnerships to expand the resources available to do space exploration and create space investment.
Taking the beachhead
That’s the view of Robert S. Walker, former Chairman of the Science, Space and Technology Committee, U.S. House of Representatives.
Walker was a Senior Space Policy Advisor to the presidential campaign of Donald J. Trump, served as an outside advisor to the Trump transition team, and currently provides outside advice to the administration’s beachhead teams working on civil, commercial, and space policy.
Walker expressed his space thoughts on The Cipher Brief, a digital, security-based conversation platform that connects the private sector with the world’s leading security experts.
For Walker’s space posting brief, go to:
Unlocking the Mysteries of Space—Trump Space Policy
Meteors emitting sizzling, rustling and hissing sounds as they descend seem contrary to the laws of physics.
What’s up with this observation?
Because sound travels far slower than light, the sounds should arrive several minutes after the meteor hits, rather than accompany or even precede it. These sounds cannot be attributed to direct acoustic propagation from the upper atmosphere for which travel time would be several minutes.
In an article published Feb. 1 in the journal Scientific Reports titled “Photoacoustic Sounds from Meteors,” the late Sandia National Laboratories researcher Richard Spalding and fellow researchers offered up a new idea.
Spalding and his colleagues reasoned that such intense light could suddenly heat the surface of objects many miles away, which in turn heats the surrounding air. This could create sounds near the observer.
Some new experimentally work has demonstrated and analyzed that effect.
Dark cloths and a wig
The investigative researchers found that objects with low conductivity, such as leaves, grass, dark paint and even hair, could rapidly warm and transmit heat into nearby air and generate pressure waves by subtle oscillations that create a variety of sounds.
The experimenters exposed several materials, including dark cloths and a wig, to intense pulsing light akin to that produced by a fireball. The process produced faint sounds similar to rustling leaves or faint whispers. Computer models bear out the results.
The process is called photoacoustic coupling.
According to a Sandia news release, sounds concurrent with a meteor’s arrival “must be associated with some form of electromagnetic energy generated by the meteor, propagated to the vicinity of the observer and transduced into acoustic waves,” according to the article in Scientific Reports. “A succession of light-pulse-produced pressure waves can then manifest as sound to a nearby observer.”
A less extreme version of the photoacoustic effect had been observed in 1880 by Alexander Graham Bell.
At that time, Bell tested the possibilities of light for long-distance phone transmissions and he intermittently interrupted sunlight shining on a variety of materials and noted the sounds produced.
Along with Spalding, the other scientists engaged in the research:
Sandia National Laboratories, Albuquerque, New Mexico – John Tencer, William Sweatt, Benjamin Conley, Roy Hogan, Mark Boslough & GiGi Gonzales
Astronomical Institute, Czech Academy of Sciences, Ondřejov, Czech Republic – Pavel Spurný
To read the full paper, “Photoacoustic Sounds from Meteors” go to:
The first orbital launch attempt from New Zealand is near at hand.
Rocket Lab has transported its Electron booster to a launch site in the Mahia Peninsula from the company’s Auckland facility.
Rocket Lab’s mission is to make space accessible by offering small satellite customers a rapid-response orbital service that is frequent, reliable and affordable.
The Electron booster is now undergoing pre-flight testing. A trio of test flights is on tap prior to offering the launcher to customers.
Google Lunar X Prize competitor, Moon Express, is contracted with Rocket Lab USA. Their lunar mission is scheduled to take place in 2017 using the MX-1E lunar lander on Rocket Lab’s Electron rocket.
High flight rate
According to a payload user’s guide provided to Inside Outer Space, the Electron is a two-stage vehicle intended to serve the emerging small satellite market and has been “designed with a high flight rate in mind.”
Electron is optimized, according to the company, for quickly launching constellations of small satellites.
The booster is configured to hurl 150 kg (330lbs) to a nominal 500 km sun-synchronous orbit from the private company’s Rocket Lab Launch Complex in New Zealand as well as from U.S. domestic range.
The standard launch of Electron starts at $4.9 million (2016) per launch. The vehicle is marketed as providing at least 100 flights per year.
New Zealand Space Agency
The Rocket Lab Launch Complex 1 was officially opened in late September of 2016.
The New Zealand Government has announced the development of a new regulatory regime for space and high altitude activities. A New Zealand Space Agency was formed in 2016 within the country’s Ministry of Business, Innovation and Employment (MBIE) and is encouraging New Zealand’s participation in the global space economy.
As noted by the MBIE, a key player is Rocket Lab, cited as a commercial space launch operator using innovative and disruptive technology developed in New Zealand and employing highly skilled people in New Zealand.
For a look at Rocket Lab’s preparations, go to this video:
Also, go to the Rocket Lab website at:
For Rocket Lab’s Frequently Asked Questions, go to:
NASA’s Curiosity Mars rover is conducting Sol 1612 science duties. The robot completed a drive of 75 feet (23 meter) on Sol 1611.
The Mars machinery ended up in an area with many bedrock blocks partly covered by dark sand, reports Ken Herkenhoff of the USGS Astrogeology Science Center in Flagstaff, Arizona.
A two sol plan has been scripted to get a head start on planning for the holiday weekend, with the first sol strategically planned to allow the “touch and go” option, Herkenhoff adds.
“But there’s a ridge about 30 meters ahead that we can’t see over, and we would like to be able to drive up onto it on Sol 1612 to allow a drive past it to be planned this weekend,” Herkenhoff notes. “There isn’t enough time before the ‘decisional’ telecommunications opportunity to fit both contact science and a 30-meter drive into the plan, so we had to pick one of these two options.”
Lots of bedrock
Based on images taken from orbit and by the rover, lots of bedrock is exposed at the crest of the ridge 98 feet (30 meters) away.
That being the case, rover scientists picked the longer drive at the expense of contact science, hoping that Curiosity will be in a better place for contact science this weekend.
Before the drive, the rover’s Chemistry and Camera (ChemCam) and Right Mastcam will observe a bright/dark boundary on a block at the left side “Frenchville” and the Right Mastcam is slated to acquire a 2×2 mosaic of another block named “Third Lake.”
Following the drive, scientists plan fewer images to support weekend planning because the expected downlink data volume is much less than usual.
“We therefore spent more time than usual carefully prioritizing the post-drive images for downlink, and may not receive all of the data we need to plan contact science and a drive this weekend,” Herkenhoff reports.
Later in the afternoon of Sol 1612, ChemCam will again use special software to autonomously select a Laser-Induced Breakdown Spectrometer (LIBS) target and acquire a 3×3 set of chemical measurements.
The Rover Environmental Monitoring Station (REMS) software upgrade went well, so REMS environmental monitoring was on the schedule.
On Sol 1613, ChemCam will acquire passive calibration data, and Navcam will search for dust devils and clouds.
“Finally, the rover will sleep overnight in preparation for what we hope will be a busy weekend plan,” Herkenhoff concludes.
Now in Sol 1611, the Curiosity Mars rover is on location to survey several potential targets.
On Sol 1610 the Curiosity Mars rover drove nearly 89 feet (27 meters).
A dark patch of bedrock, appropriately named “Patch Mountain” was chosen for Curiosity’s Chemistry and Camera (ChemCam), Right Mastcam, and Mars Hand Lens Imager (MAHLI) observations.
The MAHLI imaging was moved after the ChemCam observation so that the laser-induced breakdown spectroscopy (LIBS) impact spots would be visible, reports Ken Herkenhoff of the USGS Astrogeology Science Center in Flagstaff, Arizona.
An additional MAHLI image was added to the standard full suite, to provide a 3-image mosaic from 5 centimeters.
“Then the rover will drive again, and take images afterward to enable planning more activities on Sol 1612,” Herkenhoff adds.
Just before sunset, the robot’s Navcam will search for dust devils and
the Rover Environmental Monitoring Station (REMS) will complete the second part of their flight software update.
Dates of planned rover activities are subject to change due to a variety of factors related to the Martian environment, communication relays and rover status.
Full Committee Hearing- NASA: Past, Present, and Future
Date: Thursday, February 16, 2017 – 10:00am
Location: 2318 Rayburn House Office Building
NASA: Past, Present, and Future
Hon. Harrison Schmitt
Apollo 17 Astronaut; Former United States Senator
Lt. Gen. Thomas P. Stafford
Gemini VI, Gemini IX, Apollo 10, Apollo-Soyuz Test Project Astronaut; Chairman, NASA International Space Station Advisory Committee
Dr. Ellen Stofan
Former Chief Scientist, NASA
Mr. Tom Young
Past Director, Goddard Spaceflight Center; Past President/COO, Martin Marietta; Past Chairman, SAIC