The Peregrine spacecraft \u2014 which launched last week on the first US mission to aim for a moon landing in over 50 years\u00a0\u2014 is headed back toward Earth and expected to make a fiery reentry after a critical fuel leak dashed its lunar ambitions. <\/p>\n
The failed moon landing attempt is a setback for NASA\u2019s Commercial Lunar Payload Services, or CLPS, program, which recruits private companies to help the space agency investigate the lunar surface as it aims to return humans to the moon later this decade. <\/p>\n
Astrobotic Technology, the company that developed the Peregrine lander under a $108 million contract with NASA, revealed Sunday that it made the decision to dispose of the spacecraft by allowing it to disintegrate midair while plunging back toward Earth. <\/p>\n
\u201cWhile we believe it is possible for the spacecraft to operate for several more weeks and could potentially have raised the orbit to miss the Earth, we must take into consideration the anomalous state of the propulsion system and utilize the vehicle\u2019s onboard capability to end the mission responsibly and safely,\u201d according to an update posted to the Pittsburgh-based company\u2019s website. \u201cWe do not believe Peregrine\u2019s re-entry poses safety risks, and the spacecraft will burn up in Earth\u2019s atmosphere.\u201d <\/p>\n
The Peregrine vehicle\u2019s impending demise comes after the spacecraft faced challenges while en route to the moon, including an \u201canomaly\u201d that resulted in its solar-powered battery pointing away from the sun and the fuel leak that left the spacecraft without enough propellant to complete its planned mission to gently touch down on the lunar surface. <\/p>\n
It\u2019s not yet clear what caused the leak. <\/p>\n
Astrobotic and NASA are expected to give further updates on the mission during a news conference at 12 p.m. ET on Thursday. <\/p>\n
\u201cIt is a great honor to witness firsthand the heroic efforts of our mission control team overcoming enormous challenges to recover and operate the spacecraft,\u201d said Astrobotic CEO John Thornton in a Sunday statement. \u201cI look forward to sharing these, and more remarkable stories, after the mission concludes on January 18. This mission has already taught us so much and has given me great confidence that our next mission to the Moon will achieve a soft landing.\u201d <\/p>\n
Astrobotic did have other options for disposing of the Peregrine lander. <\/p>\n
The spacecraft could have been left to the cosmos, destined to spend eternity in the dark expanse. But the company said it decided against that route considering the \u201crisk that our damaged spacecraft could cause a problem.\u201d The Peregrine lander would essentially become a piece of uncontrolled garbage, capable of smashing into other objects in space, such as operational satellites. <\/p>\n
The company may have also considered allowing the Peregrine vehicle to crash-land on the moon, as many spacecraft have done \u2014 intentionally and unintentionally \u2014\u00a0on lunar missions of years past. <\/p>\n
When it returns to Earth, the vehicle will be obliterated as it smashes into the planet\u2019s thick atmosphere at high speeds. The company said its decision to bring Peregrine back came after receiving \u201cinputs from the space community and the U.S. Government on the most safe and responsible course of action.\u201d <\/p>\n
If Peregrine had reached the moon, it might have become the first US spacecraft to land on the lunar surface since NASA\u2019s Apollo 17 mission in 1972. <\/p>\n
But the company acknowledged just hours after its spacecraft launched on January 8 that a soft landing on the moon would not be possible. <\/p>\n
Astrobotic then switched course \u2014 aiming to operate the vehicle as a satellite as its tanks were drained. <\/p>\n
Peregrine\u2019s fuel leak slowed in the days following its launch, leaving the spacecraft with the ability to limp along for thousands of miles. <\/p>\n
For the vast majority of the mission, the Peregrine lander has been controlled solely by its attitude control thrusters, which are tiny engines mounted to the side of the lander and designed to maintain stability or make precision movements. <\/p>\n
At one point, the company said it was able to briefly power on one of the spacecraft\u2019s main engines, which are designed to give up to three bursts of power to push the Peregrine lander farther out toward the moon after reaching space. <\/p>\n
But \u2014 because of the fuel leak \u2014 long, controlled burns of the main engines were impossible, Astrobotic said. <\/p>\n
As of Monday, the company said the spacecraft was about 218,000 miles (351,000 kilometers) from Earth. <\/p>\n
Astrobotic was able to power on some of the science instruments and other payloads on board the lander. <\/p>\n
Two of NASA\u2019s five payloads \u2014 the Neutron Spectrometer System and the Linear Energy Transfer Spectrometer \u2014 were able to gather data on radiation levels in space, the space agency announced in a January 11 news release. While NASA had hoped to take those measurements on the lunar surface \u2014 where it\u2019s planning to return astronauts later this decade\u00a0\u2014 space agency officials indicated the data was still valuable. <\/p>\n
The Peregrine lander was also able to activate a new sensor, developed by NASA, that was designed to help the spacecraft land on the moon. Called the Navigation Doppler Lidar, it uses lasers and the Doppler effect \u2014 which employs wave frequency to measure distance \u2014 to make precision navigations. <\/p>\n
\u201cMeasurements and operations of the NASA-provided science instruments on board will provide valuable experience, technical knowledge, and scientific data to future CLPS lunar deliveries,\u201d said Joel Kearns, the deputy associate administrator for exploration with NASA\u2019s Science Mission Directorate, in a statement.<\/strong> <\/p>\n But at least one of NASA\u2019s science instruments \u2014 the Laser Retroreflector Array \u2014 was not able to function. The LRA is a collection of eight prisms embedded in aluminum that can reflect lasers and relay precise locations. NASA engineers designed the array to become a permanent feature on the moon, helping other spacecraft orient their locations. <\/p>\n Likewise, an array of other payloads designed specifically to operate on the moon remain trapped aboard the Peregrine lander. They include a rover developed at Carnegie Mellon University and five tiny robots from the Mexican Space Agency that were designed to be catapulted onto the lunar surface. <\/p>\n The Peregrine spacecraft is also carrying various mementos, letters and even human remains that customers paid to fly on the mission. <\/p>\n\n The Peregrine spacecraft \u2014 which launched last week on the first US mission to aim for a moon landing in over 50 years\u00a0\u2014 is headed back toward Earth and expected to make a fiery reentry after a critical fuel leak dashed its lunar ambitions. The failed moon landing attempt is a setback for NASA\u2019s Commercial <\/p>\n","protected":false},"author":0,"featured_media":14095,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[],"class_list":{"0":"post-14094","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-world"},"_links":{"self":[{"href":"https:\/\/shareperformanceinsight.com\/index.php\/wp-json\/wp\/v2\/posts\/14094","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/shareperformanceinsight.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/shareperformanceinsight.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/shareperformanceinsight.com\/index.php\/wp-json\/wp\/v2\/comments?post=14094"}],"version-history":[{"count":0,"href":"https:\/\/shareperformanceinsight.com\/index.php\/wp-json\/wp\/v2\/posts\/14094\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/shareperformanceinsight.com\/index.php\/wp-json\/wp\/v2\/media\/14095"}],"wp:attachment":[{"href":"https:\/\/shareperformanceinsight.com\/index.php\/wp-json\/wp\/v2\/media?parent=14094"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/shareperformanceinsight.com\/index.php\/wp-json\/wp\/v2\/categories?post=14094"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/shareperformanceinsight.com\/index.php\/wp-json\/wp\/v2\/tags?post=14094"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}