Archive for the ‘Space News’ Category

High-rise rocketry. Leo Aerospace prepares balloon to loft launch vehicle as a forerunner test for hurling microsatellites into Earth orbit.
Credit: Leo Aerospace/Purdue University

Leo Aerospace LLC has given notice that the group had a successful launch of a rocket from a high-altitude balloon – a concept that team members see as making space accessible to microsatellites.

The startup idea was developed while they were students at Purdue University.

Leo Aerospace is a Purdue University-affiliated startup based in Los Angeles, California.

Motivation behind the balloon-assisted rocket launch is to help end the backlog of microsatellites that wait months or longer to “hitch” a ride on larger rockets.

Up, up and away. Rocket departs balloon.
Credit: Leo Aerospace/Purdue University/Inside Outer Space Screengrab

Reusable launch pad

Leo Aerospace launched its first “rockoon,” a high-power rocket from a reusable balloon platform, from the Mojave Desert in southern California in December.

In a Purdue press statement, Leo Aerospace aims to revolutionize access to space for those looking to launch small satellites about the size of toasters, weighing up to 25 kilograms, or about 110 pounds. It plans to be a “dedicated” launch for microsatellites, serving one customer at a time.

Credit: Leo Aerospace

Using the high-altitude balloon as a launch pad will save money because it will deploy the rocket from up to 11 miles into the atmosphere. At that altitude, there is 95 percent less atmosphere, meaning there is much less drag. That means Leo Aerospace can use smaller rockets and less fuel.

Leo Aerospace already has begun taking letters of intent from microsatellite companies. In step-wise fashion, the group plans to begin doing suborbital launches next year and break the edge of space by 2021. Suborbital launches allow scientists to gather information about the atmosphere and other research data.

The goal is to be able to start launching microsatellites into orbit by 2022.

Go to this video showing the launch at:

https://youtu.be/WfXsnbPazOU

For more information on Leo Aerospace, go to:

https://www.leoaerospace.com/

Credit: DIA Public Affairs

The Defense Intelligence Agency (DIA) has released “Challenges to Security in Space,” a report that examines the space and counterspace programs that could challenge U.S. or partner interests in the space domain.

The report notes that “space-based capabilities provide integral support to military, commercial and civilian applications” and that “longstanding technological and cost barriers to space are falling, enabling more countries and commercial firms to participate in satellite construction, space launch, space exploration and human spaceflight.”

Visualization: DIA, D3 Design • 1812-20432

Modern warfare

Among items detailed, the report notes that:

Chinese and Russian military doctrines indicate they view space as important to modern warfare and counterspace capabilities as a means to reduce U.S. and allied military effectiveness.

Both countries have developed robust and capable space services, including space-based intelligence, surveillance and reconnaissance.

 

Visualization: DIA, D3 Design • 1811-20013

China and Russia are making improvements to existing systems including space launch vehicles and satellite navigation constellations. These capabilities provide their militaries with the ability to command and control their forces worldwide with enhanced situational awareness, enabling them to monitor, track and target U.S. and allied forces.

Reversible to non-reversible effects

The DIA report adds that Chinese and Russian space surveillance networks are capable of searching, tracking and characterizing satellites in all earth orbits. This capability supports both space operations and counterspace systems.

Both states are developing jamming and cyberspace capabilities, directed energy weapons, on-orbit capabilities and ground-based antisatellite missiles that can achieve a range of reversible to non-reversible effects.

DIA’s “Challenges to Security in Space” report is available here:

http://www/dia.mil/Military-Power-Publications/

The Definitive Career Guide for Entrepreneurial Space declares that the commercial space revolution is here, and it’s hungry for talent.

Offered by Space Angels, a source of capital for early-stage space ventures, the guide is authored by Justus Kilian and Jessica Holland.

“We’ve created this guide to give you concrete steps to start your journey towards a career in space now,” they explain.

Radical transformation

As detailed in the guide:

“The space industry is in the midst of a radical transformation. When SpaceX started launching its rockets a decade ago–making it far easier for commercial space startups to enter the market–it triggered a wave of entrepreneurial innovation. Today, Space is a $400B market that touches every aspect of our lives, from location-based services to global finance. The next generation of space technology will be responsible for delivering global internet, fighting climate change, and taking humanity to Mars.”

Credit: SpaceX

“To accomplish such audacious goals, the industry will require talent with diverse skills and backgrounds from every walk of life. We spoke with the most influential companies and leaders across entrepreneurial space, who were generous in sharing detailed practical advice, big-picture guidance, and the stories of their own careers.”

Career tips

The guide carries a number of career tips, offered by individuals deep into their own space professions.

To download the guide, go to:

https://www.spaceangels.com/post/the-definitive-career-for-entrepreneurial-space?utm_source=newsletter&utm_medium=email&utm_campaign=talent_report&utm_source=Newsletter&utm_medium=email&utm_content=The+Definitive+Career+Guide+for+Entrepreneurial+Space&utm_campaign=The+Definitive+Career+Guide+for+Entrepreneurial+Space

For detailed information on Space Angels, go to:

https://www.spaceangels.com/

Curiosity Front Hazcam Right A photo taken on Sol 2316, February 10, 2019.
Credit: NASA/JPL-Caltech

NASA’s Curiosity Mars rover is now performing Sol 2317 tasks.

“Curiosity is driving across the clay-bearing unit, which is still a very new terrain with many details yet to be understood,” reports Susanne Schwenzer, a planetary geologist at The Open University, Milton Keynes in the U.K. “The region is covered in little pebbles – and has lots of small sand patches, too, both of which we continue to investigate.”

Curiosity Navcam Right A image acquired on Sol 2316, February 10, 2019.
Credit: NASA/JPL-Caltec

Little further north

A recent drive by the robot moved it a little further north – to be exact, Curiosity drove 95 feet (39 meters from its last location.

“The parking location presented us with the same pebbly-strewn surface as before, with the occasional small sand feature,” Schwenzer adds. With this terrain being new, and some small-scale sedimentary features spotted by the eagle-eyed sedimentologists on the team, there was a decision to use Curiosity’s Chemistry and Camera (ChemCam) on three pebbly targets, “Dauntless,” “Otter,” and Thistle.”

Curiosity ChemCam Remote Micro-Imager photo taken on Sol 2316, February 10, 2019.
Credit: NASA/JPL-Caltech/LANL

 

Large pebble

The team also found – for the first time in this new unit – a pebble large enough to get a full Alpha Particle X-Ray Spectrometer (APXS) raster on one continuous piece of rock.

“Yes, this is how small the pebbles are! We used the opportunity, named the target “Emerald,” and investigated it using a 3-spot APXS raster, accompanied by [Mars Hand Lens Imager] MAHLI observations on this target.

Explains Schwenzer: To put all the small pieces into context, scientists planned a large Mastcam multispectral raster investigation covering the workspace in front of the rover, and including the targets “Dauntless,” “Faoilean” (a sand patch), and the APXS target “Emerald.” That plan also covers some of the sedimentary details that were spotted in the post drive imaging. Two further Mastcam observations target aeolian features (target “River Brora”) and a small ridge ahead of the rover, named “Osprey.”

Curiosity Navcam Left A image taken on Sol 2316, February 10, 2019.
Credit: NASA/JPL-Caltech

Declining dust event

Mars environmental researchers included atmospheric opacity measurements with both Mastcam and Navcam, as well as cloud observation movies and a dust-devil survey in the weekly morning suite.

Curiosity Mars Hand Lens Imager (MAHLI) produced on Sol 2316, February 10, 2019. MAHLI, located on the turret at the end of the rover’s robotic arm.
Credit: NASA/JPL-Caltech/MSSS

“Now that the regional dust event has declined,” Schwenzer points out, “we are seeing an uptick in dust devils!”

A rover drive is targeted towards a small outcrop – the largest piece of continuous rock so far seen in the new terrain.

“Go, Curiosity, geo-minded Earthlings will love to get close and personal to an outcrop soon again!,” Schwenzer concludes.

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

New road map

Meanwhile, a new Curiosity traverse map through Sol 2313 has been issued.

The map shows the route driven by NASA’s Mars rover Curiosity through the 2313 Martian day, or sol, of the rover’s mission on Mars (February 08, 2019).

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 2311 to Sol 2313, Curiosity had driven a straight line distance of about 127.94 feet (38.99 meters), bringing the rover’s total odometry for the mission to 12.53 miles (20.16 kilometers).

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

Previously released image of Chang’e-4 lander taken by Yutu-2 rover.
Credit: CNSA/CLEP

NASA’s Lunar Reconnaissance Orbiter (LRO) captured China’s Chang’e-4 farside lander/rover.
Image shows lander (near tip of left arrow) and rover (near tip of right arrow) nestled among craters on the floor of Von Kármán crater.
Credit: NASA/GSFC/Arizona State University

China’s Chang’e-4 mission is entering sleep mode on Monday given that the Moon’s farside is entering a 14-day nighttime period.

China Global Television Network (CGTN) reports that the Chang’e-4 stationary lander and Yutu-2 rover both “did a good job during the past fortnight.”

 

 

Yutu-2 rover as imaged by Chang’e-4 lander earlier in the farside mission.
Credit: CNSA/CLEP

Working conditions

The working conditions of each system were normal, CGTN reports, with data transmission normal and the scientific load – such as the infrared imaging spectrometer and neutral atomic detector – successfully carried out scientific exploration activities.

Yutu-2 moved to a new patrol position on February and accumulated about 120 meters on the Moon, CGTN explains. “The rover is expected to wake up on February 28, and the lander is expected to awaken on March 1 to continue scientific exploration activities.”

Protected Antipode Circle, is the circular piece of land proposed to be reserved for scientific purposes only on the farside of the Moon.
Credit: Claudio Maccone

There’s a call to protect the Moon’s farside, but doing so is complicated by the current, new race to the Moon.

The farside is unique where radio transmissions and noises produced by humanity on Earth may not reach since the spherical body of the Moon blocks them, acting like a shield.

Crater Daedalus on the lunar farside as seen from the Apollo 11 spacecraft in lunar orbit.
Credit: NASA

Therefore, protecting the Moon’s farside from a variety of non-scientific future exploitations (e.g. real estate, tourism and military) has long been a concern for many far-sighted space scientists, explains Claudio Maccone of the International Academy of Astronautics and Istituto Nazionale di Astrofisica in Italy.

Radio-noise free

Maccone is no stranger to this issue. In 2010, he presented the case for the Moon farside protection at the United Nations Office of Outer Space Affairs in Vienna, during a meeting of the United Nations Committee on the Peaceful Uses of Outer Space.

“Unfortunately, the undeclared but quite real ‘current, new race to the Moon’ complicates matters terribly,” Maccone says.

“All the spacefaring nations now keep their eyes on the Moon, and only the United Nations might have a sufficient authority to protect the farside and keep safe its unique ‘radio-noise free’ environment,” Maccone says. “But time is money, and the ‘Moon Settlers’ may well reach the Moon before the United Nations come to agree about any official decision concerning the farside protection.”

Circular piece of real estate

Maccone’s concerns and views are expressed in a new paper — Moon Farside Protection, Moon Village and PAC (Protected Antipode Circle) – published in the January 2019 issues of the journal, Acta Astronautica.

The paper defines a Protected Antipode Circle (PAC), a circular piece of real estate on the Moon’s farside that measures roughly 1,130 miles (1,820 kilometers) in diameter. Also proposed is that the projected “Moon Village” espoused by the European Space Agency’s Director General, Jan Wörner, be located outside the PAC.

Daedalus Crater Base for RFI-free Radio astronomy, astrobiology and SETI science.
Credit: Claudio Maccone

Doing so prevents interfering with detection of radiation coming from space. Also south of the PAC is “close” to the lunar South Pole and access to frozen water there. “It thus appears that the best venue for the ‘Moon Village’ would be on or around the 180 meridian and possibly quite close to the South Pole,” Maccone asserts.

The European Space Agency is exploring 3D printing of habitats and other structures on the Moon.
Credit: RegoLight, visualization: Liquifer Systems Group, 2018

Think ahead and preserve

Future space planners “need to think ahead and preserve the precious space resources that still remain unpolluted by humankind,” Maccone notes. “For this reason, we want to protect the lunar farside, which is ideal for a future radio telescope or phased array detectors, from any human-made radio pollution.”

The paper proposes location of the first Radio Frequency Interference-free in the crater Daedalus, the most shielded crater of all on the Moon’s farside from Earth-made radio pollution. From that RFI-free site, astronomy, astrobiology and search for extraterrestrial intelligence (SETI) science can be carried out.

“The farside cannot be left to the realtor’s speculations,” Maccone concludes, “this is an urgent matter!”

To view the paper — Moon Farside Protection, Moon Village and PAC (Protected Antipode Circle) – go to:

https://www.sciencedirect.com/science/article/pii/S0094576517316478

InSight Sol 71 image taken by Instrument Deployment Camera (IDC) on February 7, 2019. German Heat Flow and Physical Properties Package (HP3) is seen at left of robotic arm.
Credit: NASA/JPL-Caltech

NASA’s InSight Mars lander is nearing its next major milestone mission by deploying the German Heat Flow and Physical Properties Package (HP3).

Like the seismometer and Wind and Thermal Shield, the HP3 will be placed on the surface of Mars by InSight’s robotic arm.

InSight Sol 73 photo acquired by Instrument Deployment Camera (IDC) on February 9, 2019 shows the robotic arm grapple hovering over HP3.
Credit: NASA/JPL-Caltech

Plowing deeper

HP3 is designed to burrow down beneath the Red Planet’s topside — with its tether embedded with heat sensors — to a depth of 16 feet (five meters). If successful, the HP3 will plow deeper than any previous arms, scoops, drills or probes before it.

In an earlier email exchange with Inside Outer Space, Tilman Spohn, HP3’s principal investigator at the German Aerospace Center’s Institute of Planetary Research in Berlin, Germany projected a February 13th deployment of the device on the Red Planet’s surface, and the start of operations about a week later.

“However, be aware that these dates are still not cast in concrete yet,” Spohn added.

Ready to go!

In a recent update from Tilman: “We are ready to go!”

The InSight lander grapple has been moved to the HP3 “teachpoint” that is immediately above the grapple hook on the instrument.

Tilman adds that over this weekend the grapple will catch the hook and after confirmation on Monday, the commands for HP3 deploy will be uplinked.

This command will then be executed on Mars on Tuesday February 12 (in the late morning on Mars, with touchdown of the instrument to be expected at 10:46 local time). “We expect the confirmation to be downlinked around 4pm PST,” Tilman explains.

Hammer time

Imagery from the Interior Exploration using Seismic Investigations, Geodesy and Heat Transport (InSight) lander show the robotic arm in position for grapple of the HP3.

Components of the HP3 heat flow probe. Top left: the radiometer (RAD), which is used to measure the radiation temperature (roughly equivalent to the ground temperature) of the surface. Right: the casing with the mole penetrometer, the temperature measuring cable (TEM-P) and the data cable (ET) connected to the lander. In addition, the casing contains an optical length meter for determining the length of the temperature measuring cable that has been pulled from the casing. The mole contains the TEM-A active thermal conductivity sensor and the STATIL tiltmeter. Bottom left: the electronic control unit, known as the back end electronics (BEE), which remains on the lander and is connected to the probe via the ET.
Credit: DLR.

Once on the surface, HP3 can take Mars’ temperature to reveal how much heat is still flowing out of the interior of the planet.

Weighing a little over 6.5 pounds (about 3 kilograms) HP3’s “Mole” hammers itself under the surface. A maximum of 2 watts of power is available while burrowing underneath the surface.

The German Aerospace Center’s (DLR) HP3 heat flow probe has the Mole pulling a ribbon cable equipped with 14 temperature sensors behind it. Once the probe has reached its target depth, the temperature will be measured by all of the sensors every 15 minutes for several months.

Credit: DLR/Screengrab/Inside Outer Space

Credit: NASA/JPL-Caltech

 

NASA’s Curiosity Mars rover is now performing Sol 2315 tasks.

The rover is cruising through the clay-bearing unit on some compacted clast-rich soil.

Here’s a sampling of recent imagery from the Red Planet prowler:

Curiosity Navcam Left A photo taken on Sol 2314, February 8, 2019.
Credit: NASA/JPL-Caltech

Curiosity Mastcam Left Sol 2313 February 7, 2019
Credit: NASA/JPL-Caltech/MSSS

Curiosity Mastcam Left image taken on Sol 2313, February 7, 2019.
Credit: NASA/JPL-Caltech/MSSS

Curiosity Mastcam Left image acquired on Sol 2313, February 7, 2019.
Credit: NASA/JPL-Caltech/MSSS

Curiosity ChemCam Remote Micro-Imager photo taken on Sol 2314, February 8, 2019.
Credit: NASA/JPL-Caltech/LANL

Credit: ASAP

 

NASA’s Aerospace Safety Advisory Panel (ASAP) has released its 2018 Annual Report.

The ASAP appraisal highlights 2018 activities and includes assessments of NASA’s:

Exploration Systems Development

Commercial Crew Program

Deep space exploration

International Space Station operations

Aeronautics missions and air operations, and

Enterprise protection

Risk management

In a letter within the report to NASA chief, Jim Bridenstine, Patricia Sanders

Chair of the Aerospace Safety Advisory Panel, flags a number of issues.

“As both the Commercial Crew Program and Exploration Systems Development move beyond design into hardware production and test, we continue to note that NASA maintains focus on the requisite details for risk management and mission success without apparent neglect or omission of planned content,” Sanders says.

A look through the open hatch of the Dragon V2 reveals the layout and interior of the seven-crew capacity spacecraft. SpaceX unveiled the new spacecraft during a ceremony at its headquarters in Hawthorne, California, on May 29, 2014. (NASA/Dimitri Gerondidakis)

“To date, but with technical challenges remaining, there has been no direct evidence that schedule pressure is driving decisions that will adversely impact safety,” adds Sanders.

Inherent perils

The letter explains that, as NASA transitions from development to operational launch and flight of its astronauts—something it has not done for several years, since the end of the Shuttle era—it is essential to remain cognizant of the perils inherent to space flight.

“Given the great uncertainties of the space operational environment, it is critical to maintain vigilance and attention to test results, engineering understanding, disciplined processes, and consideration of mitigation alternatives,” Sanders says. “We have often commented on the need for constancy of purpose for exploration, but along with that must go constancy of standards for certification, flight test, and acceptable risk.”

The report explains that two recent events demonstrate that space flight is inherently risky: a pressure leak on the International Space Station (ISS), and an abort during a launch of the Russian Soyuz.

International Space Station
Credit: Roscosmos

ISS mitigation plan

Noted in the letter, the ASAP advice includes a recommendation that NASA and the Congress agree on a mitigation plan to ensure continuing U.S. presence on the International Space Station until commercial crew providers are available.

They also advise that NASA maintain a persistent presence in low-Earth orbit for the long term in order to mitigate the considerable risk of human exploration in the far reaches of space.

The ASAP also continues to urge serious attention to the hazards posed by Micrometeoroids and Orbital Debris, and they continue to recommend that the language in the NASA Authorization Act of 2005 requiring the establishment of a Presidential Commission for Human Space Flight Independent Investigations be reviewed and revised.

To read the entire report – Aerospace Safety Advisory Panel Annual Report: 2018 – go to:

https://oiir.hq.nasa.gov/asap/documents/2018_ASAP_Report-TAGGED.pdf

Credit: Johns Hopkins

 

In the winter 2019 issue of the Johns Hopkins Whiting School of Engineering Magazine, how to make space elevators a reality is tackled.

No material yet exists that’s strong enough to withstand the tension caused by the pull of the counterweight, the force of the Earth rotating, and the gravitational weight of the cable itself without using so much of the material that it becomes unrealistic.

Explains Sean Sun, professor in the Department of Mechanical Engineering: “It’s mathematically possible to use steel. But the design parameters would require so much steel that there’s not enough material in the entire universe.”

Taking a different approach, Sun and graduate student Dan Popescu apply a bioengineering spin to this problem.

Autonomous robots

As Christen Brownlee explains in the magazine story, while most engineered structures operate at a fraction of their material’s tensile strength—how far they can be pulled without breaking—most biological structures, such as tendons, operate near their max. That’s because biological structures are constantly breaking themselves down and rebuilding, which allows for continual repair.

Space elevators won’t require such a strong cable if the cable also continually renews itself, Sun and Popescu reason. This feat could be achieved, they suggest, by developing a cable that’s constantly serviced by autonomous robots.

Good working order

Rather than waiting for breaks in the cable, these robots can dynamically break down and rebuild the cable to make sure it’s always in good working order.

This cable would be segmented so that if a break occurred, it wouldn’t extend beyond a small site, explain the researchers.

Popescu and Sun recently reported their solution — Building the Space Elevator: Lessons from Biological Design – at Cornell University’s pre-print website, here:

https://arxiv.org/abs/1804.06453

Griffith Observatory Event