Space Exploration Technologies Archives

December 1, 2014December 23, 2015 by Elizabeth Howell

Dawn Spacecraft Will Take Pictures Of Its Target Dwarf Planet Today

Artist's conception of the Dawn spacecraft approaching the asteroid Ceres. Credit: NASA/JPL-Caltech

The year 2015 is going to be a big one for far-off spacecraft. Among them is the long-running Dawn mission, which is on its way to the dwarf planet Ceres (by way of Vesta) and should settle into orbit in April after a radiation blast delayed the original flight plan.

And today (Dec. 1) comes a special day for Dawn — when it turns its cameras to Ceres to capture the world, which will appear about nine pixels across. The reason? Besides scientific curiosity, it turns out to be a perfect calibration target, according to NASA.

“One final calibration of the science camera is needed before arrival at Ceres,” wrote Marc Rayman, the mission director at the Jet Propulsion Laboratory, in a recent blog post.

“To accomplish it, the camera needs to take pictures of a target that appears just a few pixels across. The endless sky that surrounds our interplanetary traveler is full of stars, but those beautiful pinpoints of light, while easily detectable, are too small for this specialized measurement. But there is an object that just happens to be the right size. On Dec. 1, Ceres will be about nine pixels in diameter, nearly perfect for this calibration.”

The Dawn spacecraft's first image of Ceres, taken July 20, 2010. Credit: NASA/JPL-Caltech/MPS/DLR/IDA — The Dawn spacecraft’s first image of Ceres, taken July 20, 2010. Credit: NASA/JPL-Caltech/MPS/DLR/IDA

This isn’t the first picture of Ceres by Dawn — not by a long-shot — but it sure will loom bigger than you see in the image at left, which was taken in 2010. Dawn hadn’t even arrived at Vesta at the time, the blog post points out, and the spacecraft was about 1,300 times further from Ceres then as it is now. Translating that into visual magnitude, the new pictures of Ceres will show an appearance about as bright as Venus, from Earth’s perspective.

In October, the Dawn blog said that more pictures of Ceres are planned on Jan. 13, when Ceres will appear 25 pixels across. This won’t be quite the best view ever — that was taken by the Hubble Space Telescope, which you can see below, — but just wait a couple of weeks. The mission planners say that by Jan. 26, the images will be slightly better. On Feb. 4, they will be twice as good and by Feb. 20, seven times as good.

As with the calibration photo taken today, these photos in 2015 will have a double purpose: optical navigation. It’s to help the spacecraft figure out where to go, because our pictures of Ceres are so fuzzy that mission planners will need more exact information as the mission proceeds.

You can read more information about the picture-taking, and Dawn’s planned approach to Ceres, in the Nov. 28 entry of the Dawn blog.

Pictures of the asteroid Ceres taken by the Hubble Space Telescope and released in 2005. It shows the asteroid moving over two hours and 20 minutes, which is about a quarter of a day on Ceres (nine hours). At the time, scientists said the bright spot is a mystery. Credit: NASA, ESA, J. Parker (Southwest Research Institute), P. Thomas (Cornell University), and L. McFadden (University of Maryland, College Park) — Pictures of the asteroid Ceres taken by the Hubble Space Telescope and released in 2005. It shows the asteroid rotating over two hours and 20 minutes, which is about a quarter of a day on Ceres (nine hours). At the time, scientists said the bright spot is a mystery. Credit: NASA, ESA, J. Parker (Southwest Research Institute), P. Thomas (Cornell University), and L. McFadden (University of Maryland, College Park)

December 1, 2014December 23, 2015 by Elizabeth Howell

Probing Pluto’s Paltry Atmosphere Using A Solar Eclipse And Spacecraft

Artist's conception of the Pluto system from the surface of one of its moons. Credit: NASA, ESA and G. Bacon (STScI)

Pluto is so far away from us and so tiny that it’s hard to glean even basic facts about it. What is its tenuous atmosphere made of? And how to observe it during NASA’s New Horizons very brief flyby next July? A recent Johns Hopkins blog post explains how a careful maneuver post-Pluto will let investigators use the Sun to examine the dwarf planet’s true nature.

Investigators will use an instrument called Alice, an ultraviolet spectrometer, to look at the atmosphere around Pluto and its largest moon, Charon. Alice is capable of examining the gases in the atmosphere using a large “airglow” aperture (4 by 4 centimeters) and also using the Sun for observation with a smaller, 1-mm solar occultation channel.

“Once New Horizons flies past Pluto, the trajectory will conveniently (meaning, carefully planned for many years) fly the spacecraft through Pluto’s shadow, creating an effect just like a solar eclipse here on Earth,” wrote Joel Parker, New Horizons co-investigator, in a blog post.

“So we can (and will) just turn the spacecraft around and stare at the Sun, using Alice as it goes behind Pluto to measure how the Sun’s ultraviolet light changes as that light passes through deeper and deeper parts of Pluto’s atmosphere. This technique lets us measure the composition of Pluto’s atmosphere as a function of altitude.”

And guess where the technique was used not too long ago? Titan! That’s a moon of Saturn full of hydrocarbons and what could be a precursor chemistry to life. The moon is completely socked in with this orange haze that is intriguing. Scientists are still trying to figure out what it is made of — and also, to use our understanding of it to apply to planets outside our solar system.

When a huge exoplanet passes in front of its star, and it’s close enough to Earth, scientists are starting to learn how to ferret out information about its chemistry. This shows them what temperature the atmosphere is like and what it is made of, although it should be emphasized scientists are only starting on this work.

A composite image of Titan's atmosphere, created using blue, green and red spectral filters to create an enhanced-color view. Image Credit: NASA/JPL/Space Science Institute — A composite image of Titan’s atmosphere, created using blue, green and red spectral filters to create an enhanced-color view. Image Credit: NASA/JPL/Space Science Institute

The goal of performing these transit observations of Titan was to understand how haze on an exoplanet might blur the observations. From four passes with the Cassini spacecraft, the team (led by Tyler Robinson at NASA’s Ames Research Center) found that haze would make it difficult to get information from all but the upper atmosphere.

“An additional finding from the study is that Titan’s hazes more strongly affect shorter wavelengths, or bluer, colors of light,” NASA stated at the time. “Studies of exoplanet spectra have commonly assumed that hazes would affect all colors of light in similar ways. Studying sunsets through Titan’s hazes has revealed that this is not the case.”

The nature of Pluto will better come to light when New Horizons makes its pass by the planet in July 2015. Meanwhile, controllers are counting down the days until the spacecraft emerges from its last hibernation on Saturday (Dec. 6).

Source: Johns Hopkins Applied Physics Laboratory

November 28, 2014December 23, 2015 by Elizabeth Howell

Beam Me Up, Mars! Uwingu Will Send 90,000 Radio Messages There Today

Early Spring Dust Storms at the North Pole of Mars. Early spring typically brings dust storms to northern polar Mars. As the north polar cap begins to thaw, the temperature difference between the cold frost region and recently thawed surface results in swirling winds. The choppy dust clouds of several dust storms are visible in this mosaic of images taken by the Mars Global Surveyor spacecraft in 2002. The white polar cap is frozen carbon dioxide. (NASA/JPL/Malin Space Science Systems)

Maybe you can’t climb on a rocketship to Mars, at least yet, but at the least you can get your desire for exploration out through other means. Today, take comfort that humanity is sending 90,000 messages in the Red Planet’s direction. That’s right, the non-profit Uwingu plans to transmit these missives today around 3 p.m. EST (8 p.m. UTC).

Among the thousands of ordinary folks are a collection of celebrities: Bill Nye, the Science Guy; George Takei (“Sulu” on Star Trek) and commercial astronaut Richard Garriott, among many others.

“This is the first time messages from people on Earth have been transmitted to Mars by radio,” Uwingu stated. “The transmission, part of Uwingu’s ‘Beam Me to Mars’ project, celebrates the 50th anniversary of the 28 November 1964 launch of NASA’s Mariner 4 mission—the first successful mission to explore Mars.”

The project was initially released in the summer with the idea that it could help support struggling organizations, researchers and students who require funding for their research. The messages cost between $5 and $100, with half the money going to the Uwingu Fund for space research and education grants, and the other half for transmission costs to Mars and other needed things.

While only robots can receive those messages for now, it’s another example of transmission between the planets that we take for granted. For example, check out this stunning picture below from Mars Express, a European Space Agency mission, that was just released yesterday (Nov. 27). Every day we receive raw images back from the Red Planet that anyone can browse on the Internet. That was unimaginable in Mariner 4’s days. What will we see next?

Close-up of a trough in the huge Hellas Basin on Mars, taken by the European Space Agency's Mars Express spacecraft and released Nov. 27, 2014. Credit: ESA/DLR/FU Berlin — Close-up of a trough in the huge Hellas Basin on Mars, taken by the European Space Agency’s Mars Express spacecraft and released Nov. 27, 2014. Credit: ESA/DLR/FU Berlin

November 27, 2014December 23, 2015 by Elizabeth Howell

Venus Express Spacecraft, Low On Fuel, Does Delicate Dance Above Doom Below

Artist's impression of Venus Express performing aerobreaking maneuvers in the planet's atmosphere in June and July 2014. Credit: ESA–C. Carreau

It’s been an interesting year for Venus Express. A few months ago, controllers deliberately dipped the spacecraft into the atmosphere of the planet — for science purposes, of course. The daring maneuver was approved because the spacecraft is near the end of its mission. It’s nearly out of fuel and will fall into Venus — sometime. Likely in 2015. No one knows exactly when, however.

Until Dec. 30, European Space Agency operators are going to boost the spacecraft’s orbit to try to get a little more productivity out of it. After that, all depends on what gas is left in the tank.

The push against the dense atmosphere revealed a few surprises. In a recent blog post, ESA said the atmosphere was changing more than expected. Between different altitudes, controllers sometimes saw a steady rise in pressure and sometimes multiple peaks. The spacecraft’s journeys took it as low as 129.2 kilometers (80 miles) above the surface, but mostly involving a month of “surfing” between 131 km and 135 km (81.4 miles and 83.9 miles).

Artist's conception of Venus Express doing an aerobraking maneuver in the atmosphere in 2014. Credit: ESA–C. Carreau — Artist’s conception of Venus Express doing an aerobraking maneuver in the atmosphere in 2014. Credit: ESA–C. Carreau

“One possible explanation is that we detected atmospheric waves,” stated Håkan Svedhem, Venus Express project scientist.

“These features can be caused when high speed winds travel over mountain ranges. The waves then propagate upwards. However, such waves have never before been detected at such heights – twice the altitude of the cloud deck that blankets Venus.”

ESA observed that the atmospheric density increased 1,000 times between 165 km and 130 km (102.5 miles and 80.8 miles) and that it also changed when the spacecraft moved from day to night (specifically, it was four times greater on the sunlit side.) Measurements were also taken of high-energy particles and Venus’ magnetic fields, which are still being examined.

False colour composite of a ‘glory’ seen on Venus on 24 July 2011. The image is composed of three images at ultraviolet, visible, and near-infrared wavelengths from the Venus Monitoring Camera. The images were taken 10 seconds apart and, due to the motion of the spacecraft, do not overlap perfectly. The glory is 1200 km across, as seen from the spacecraft, 6000 km away. Credit: ESA/MPS/DLR/IDA.

But now, the end is indeed near for the spacecraft after eight years at Venus — four times longer than its primary mission. Although it is healthy and performing routine science operations, fuel is only standing at around 3 kilograms (6.6 pounds) and oxidizer at 5 kg (11 lbs). It’s possible not all of it is accessible due to propellant movement in the tanks, ESA said. The new maneuvers are expected to subtract 1.4 kg of fuel and 2 kg of oxidizer from these totals.

“Unfortunately, we do not know how much fuel remains in its tanks, but we are intending to continue the up-down process as long as possible, until the propellant runs out,” Svedhem added.

“We have yet to decide whether we shall simply continue until we lose control, allowing it to enter the atmosphere and burn up naturally, or whether we attempt a controlled descent until it breaks up.”

Source: European Space Agency (here and here)

November 26, 2014December 23, 2015 by Elizabeth Howell

Here’s The First 3-D Part Printed In Space. Where Will That Take Us Next?

NASA astronaut Butch Wilmore (Expedition 42 commander on the International Space Station) holds the first 3-D printed part made in space, which was created on Nov. 25, 2014. Credit: NASA

Here’s the 22nd-century version of breaking the surly bonds of Earth: NASA and private company Made In Space have just collaborated on the first 3-D printed part in space, ever.

The milestone yesterday (Nov. 25) is a baby step towards off-Earth manufacturing, but the implications are huge. If these testbeds prove effective enough, eventually we can think of creating these parts in other destinations such as the Moon, or an asteroid, or even Mars.

“We look at the operation of the 3-D printer as a transformative moment, not just for space development, but for the capability of our species to live away from Earth,” stated Aaron Kemmer, CEO of Made In Space — the company that developed the printer.

There are still kinks to be worked out, however. The “part adhesion” on the tray after the piece was created had a bond that was mightier than controllers anticipated, which could mean that bonding is different in microgravity. A second calibration coupon should be created shortly as controllers make adjustments to the process.

Artist's conception of a lunar dome based on 3-D printing. Credit: ESA/Foster + Partners — Artist’s conception of a lunar dome based on 3-D printing. Credit: ESA/Foster + Partners

We’ll see several of these “test coupons” manufactured in the next few months and then sent back to Earth for more detailed analysis. Meanwhile, we have two more 3-D printers to look forward to in space: one created by the Italians that should arrive while their citizen, Samantha Cristoforetti, is still on station (she just arrived a few days ago) and a second one created by Made In Space that is supposed to commercialize the process.

The idea of 3-D printing has been discussed extensively in the media by both NASA and the European Space Agency in the past year or so. ESA has released media speculating on how additive manufacturing could be used to create Moon bases at some distant date. Meanwhile, NASA has talked about perhaps creating food using a 3-D printer.

If additive manufacturing takes off, so to speak, it could reduce shipping costs from Earth to the International Space Station because controllers could just send up a set of instructions to replace a part or tool. But NASA should move quickly to test this stuff out, according to a recent National Research Council report; the station is approved for operations only until 2020 (so far), which leaves only about five years or so to do testing before agencies possibly move to other destinations.

November 26, 2014December 23, 2015 by Elizabeth Howell

Rosetta Comet Sounds Make ‘Across The Universe’ Song Oh So Spooky

Four image montage of comet 67P/C-G, using images taken on 2 September. Credits: ESA/Rosetta/NAVCAM

It’s not quite across the universe from us, but Rosetta’s comet is a fair distance away — outside the orbit of Mars and drawing slightly closer to the Sun by the day. Recently, the team behind the probe released a “song” the comet produced, as picked up by the Rosetta Plasma Consortium instruments on the spacecraft. Now a YouTube artist has decided to take that a step further and play the sounds as background to a famous Beatles tune.

“When I first heard that the ESA had not only landed on but recorded audio from a comet, I knew I had to make something out of it,” wrote Andrew Huang, the creator of the video, on YouTube. “This is my reworking of the Beatles’ awesome cosmic ballad “Across the Universe” which, apart from my singing, was created entirely with sounds from the Rosetta space probe’s recording of Comet 67P/Churyumov–Gerasimenko.”

It’s a spooky rendition that makes you think of the dots you see in the sky as actual worlds or stars, producing energy and sounds and other phenomena that make them unique. Huang also created a video showing how he designed the song. What other Sirens will call to us from the cosmos?

(h/t io9, The Mary Sue)

November 25, 2014December 23, 2015 by Elizabeth Howell

NASA Wants To Launch Tiny Moon Satellites On Its Next-Generation Rocket

Artist's conception of NASA's Space Launch System with Orion crewed deep space capsule. Credit: NASA

As the space community counts down the days to the long-awaited Dec. 4 uncrewed launch of the Orion spacecraft — that vehicle that is supposed to bring astronauts into the solar system in the next decade — NASA is already thinking ahead to the next space test in 2017 or 2018.

Riding atop the new Space Launch System rocket, if all goes to plan, will be a suite of CubeSats that will explore the Moon as Orion makes its journey out to our largest closest celestial neighbor. NASA announced details of the $5 million “Cube Quest” challenge yesterday (Nov. 24).

CubeSats are tiny satellites that are so small that they are often within the reach of universities and similar institutions that want to perform science in space without the associated cost of operating a huge mission. The concept has been so successful that some companies are basing their entire business model on it, such as Planet Labs — a company that is performing Earth observations with the small machines.

NCube-2 cubesat, a typical configuration for this kind of satellite (although the outer skin is missing.) Credit: ARES Institute

The competition will be divided into several parts, including a ground tournament to see if the CubeSats can fly on the SLS, a lunar derby to ensure they can communicate at a distance of 10 times the Earth-moon distance, and a deep-space derby to put the CubeSat in a “stable lunar orbit” and work well there.

“The Cube Quest Challenge seeks to develop and test subsystems necessary to perform deep space exploration using small spacecraft. Advancements in small spacecraft capabilities will provide benefits to future missions and also may enable entirely new mission scenarios, including future investigations of near-Earth asteroids,” NASA stated.

For more details on the competition, check out this link.

November 25, 2014December 23, 2015 by Elizabeth Howell

Mercury Spacecraft Moves To Testing Ahead Of 2016 Launch To Sun’s Closest Planet

Artist's impression of the European Space Agency/JAXA BepiColombo mission in operation around Mercury. Credit: Astrium

After facing down a couple of delays due to technical difficulties, Europe’s and Japan’s first Mercury orbiter is entering some of the final stages ahead of its 2016 launch. Part of the BepiColombo orbiter moved into a European testing facility this past week that will shake, bake and otherwise test the hardware to make sure it’s ready for its extreme mission.

Because Mercury is so close to the Sun, BepiColombo is going to have a particularly harsh operating environment. Temperatures there will soar as high as 350 degrees Celsius (662 degrees Fahrenheit), requiring officials to change the chamber to simulate these higher temperatures. Time will tell if the spacecraft is ready for the test.

BepiColombo is also special because it includes not one orbiting spacecraft, but two. Flying in different orbits, the Mercury Planetary Orbiter and the Mercury Magnetospheric Orbiter will try to learn more about this mysterious planet. NASA’s MESSENGER (MErcury Surface, Space ENvironment, GEochemistry and Ranging) spacecraft has spent the past few years orbiting Mercury, but before then, we had very little information on the planet. (And before MESSENGER, only brief flybys from NASA’s Mariner 10 in the 1970s turned up spacecraft-based information on Mercury.)

MESSENGER has turned up quite a few surprises. It’s showed us more about the nature of Mercury’s tenuous atmosphere and it’s discovered probable water ice (!) in permanently shadowed areas, among other things. The European Space Agency and Japan hope to push our understanding of the Sun’s closest planet when BepiColombo gets there in 2024.

On Oct. 30, 2014, the Mercury Planetary Orbiter (part of the BepiColombo mission) was moved into the European Space Agency's space simulator for testing ahead of the expected 2016 launch. Credit: ESA–A. Le’Floch — On Oct. 30, 2014, the Mercury Planetary Orbiter (part of the BepiColombo mission) was moved into the European Space Agency’s space simulator for testing ahead of the expected 2016 launch. Credit: ESA–A. Le’Floch

There are so many questions that Mercury presents us, and BepiColombo is trying to answer a few of those. For example, Mercury’s density is higher than the rest of the other terrestrial planets for reasons that are poorly understood. Scientists aren’t sure if its core is liquid or solid, or even it has active plate tectonics as Earth does. Its magnetic field is a mystery, given that Mars and Venus and the Moon don’t have any. And there are tons of questions too about its atmosphere, such as how it is produced and how the magnetic field and solar wind work together.

The two spacecraft will be carried together to Mercury’s orbit along with a component called the Mercury Transfer Model (MTM), which will push the spacecraft out there using solar-electric propulsion. Just before BepiColombo enters orbit, MTM will be jettisoned and the Mercury Polar Orbiter will ensure the Mercury Magnetospheric Orbiter receives the needed resources to survive until the two spacecraft move into their separate orbits, according to the European Space Agency.

As for why it takes so long to get out there, to save on fuel the mission will swing by Earth, Venus and Mercury to get to the right spot. Once the two spacecraft are ready to go, they’re expected to last a year in orbit — with a potential one-year extension.

November 25, 2014December 23, 2015 by Elizabeth Howell

Where The Heck Did Philae Land? Rosetta Team Narrows The Cometary Search

A 3-D image of Comet 67P/Churyumov–Gerasimenko taken from the Philae lander as it descended. The picture is a combination of two images from the Rosetta Lander Imaging System (ROLIS) taken about an hour before landing at 10:34 a.m. EST (3:34 p.m. UTC) on Nov. 12, 2014. Credit: ESA/Rosetta/Philae/ROLIS/DLR

The first soft comet landing Nov. 12 showed us how space missions can quickly drift to the unexpected. Philae’s harpoons to secure it failed to fire, and the spacecraft drifted for an incredible two hours across Comet 67P/Churyumov–Gerasimenko before coming to rest … somewhere. But where? And can the orbiting Rosetta spacecraft find it?

That’s been the obsession of the European Space Agency for the past couple of weeks. Controllers have pictures from Philae during its descent and brief science operations on the surface. They’ve managed to capture the little lander in incredible photographs from Rosetta. But the key to finding Philae will likely come from a different experiment altogether.

The experiment is called the Comet Nucleus Sounding Experiment by Radio wave Transmission (CONSERT) and is a piece of work between both lander and orbiter. Rosetta sent radio signals to Philae on the surface to get a better sense of what the insides of 67P are made of. But it turns out it can also be used to pinpoint the lander.

ESA recently released a landing zone of where, based on CONSERT data, it believes the lander came to rest. The next step will be to get the Rosetta spacecraft to examine the area in high-definition.

An estimation of Philae's landing site on Comet 67P/Churyumov–Gerasimenko, based on data from the Comet Nucleus Sounding Experiment by Radio wave Transmission (CONSERT) experiment. Credit: ESA/Rosetta/Philae/CONSERT — An estimation of Philae’s landing site on Comet 67P/Churyumov–Gerasimenko, based on data from the Comet Nucleus Sounding Experiment by Radio wave Transmission (CONSERT) experiment. Credit: ESA/Rosetta/Philae/CONSERT

“By making measurements of the distance between Rosetta and Philae during the periods of direct visibility between orbiter and lander, as well as measurements made through the core, the team have been able to narrow down the search to the strip presented in the image shown above,” ESA stated. “The determination of the landing zone is dependent on the underlying comet shape model used, which is why there are two candidate regions marked.”

Finding Philae is not only a goal to fulfill curiosity, but also to learn more about the comet itself. The team needs to know where the lander is sitting before they can fully analyze the CONSERT data, they said. So the search continues for the hibernating lander, which right now is in a shady spot and unable to transmit status updates since it can’t get enough sunlight to recharge. (This could change as 67P gets closer to the Sun, but nobody knows for sure.)

Rosetta, meanwhile, is in perfect health and continues to transmit incredible pictures of the comet, such as this one below released a couple of days ago. The montage you see includes the zone where Philae was supposed to have touched down, but it will take higher-resolution images from the Optical, Spectroscopic, and Infrared Remote Imaging System (OSIRIS) to get a better look.

Source: European Space Agency (here and here)

A montage of four images of Comet 67P/Churyumov–Gerasimenko taken by the Rosetta spacecraft on Nov. 20, 2014. Credit: ESA/Rosetta/NAVCAM – CC BY-SA IGO 3.0

November 24, 2014December 23, 2015 by Elizabeth Howell

Antares Rocket Failure Pushes Tiny Satellite Company To Hitch Ride With SpaceX

Orbital Sciences Antares rocket explodes violently and is consumed in a gigantic aerial fireball seconds after blastoff from NASA’s Wallops Flight Facility, VA, on Oct. 28, 2014 at 6:22 p.m. Credit: Ken Kremer – kenkremer.com

The various companies that had stuff sitting on the failed Orbital Sciences Antares rocket launch last month are busy looking for alternatives. One example is Planet Labs, which is best known for deploying dozens of tiny satellites from the International Space Station this year.

The company lost 26 satellites in the explosion. But within nine days of the Oct. 28 event, Planet Labs had a partial backup plan — send two replacements last-minute on an upcoming SpaceX Falcon 9 launch.

In what Planet Labs’ Robbie Schingler calls “the future of aerospace”, almost immediately after the explosion Planet Labs began working with NanoRacks, which launches its satellites from the space station, to find a replacement flight. Half of Planet Labs’ employees began building satellites, while the other half began working through the regulations and logistics. They managed to squeeze two satellites last-minute on to the next SpaceX manifest, which is scheduled to launch in December.

“In space, each element is very difficult to get right by itself, and it takes an ecosystem to deliver a capability this quickly,” wrote Schingler, a president and co-founder of the company, in a blog post last week.

NanoRacks CubeSats deployed from the International Space Station in February 2014, during Expedition 38. Credit: NASA

“Central to making this possible was developing our own custom design of the satellite that is free from specialty suppliers (thus decreasing lead time) and having a spacecraft design optimized for manufacturing and automated testing. Moreover, we certainly couldn’t have done it without the collaboration from NanoRacks and support from NASA, and we thank them for their support. This is a great example for how to create a resilient aerospace ecosystem.”

There’s no word on how they will replace the other satellites, nor how this will affect Planet Labs’ vision (explained in this March TED talk) to have these small sentinels frequently circling Earth to provide near-realtime information on what is happening with our planet. But the company acknowledged that space is hard and satellites do get lost from time to time.

The company has been testing hardware in space, Silicon Valley-style, and starting to sign partnerships with various entities who want access to the imagery. Check out some of the free stuff below.