NASA to burn through last of InSight's power in the name of • The Register

2022-06-25 04:14:15 By : Mr. Simon Hsu

Pondering what services to switch off to keep your laptop going just that bit longer? NASA engineers can relate, having decided the Mars InSight lander will go out on a high: they plan to burn through the remaining power to keep the science flowing until the bitter end.

The InSight lander is in a precarious position regarding power. A build-up of dust has meant the spacecraft's solar panels are no longer generating anywhere near enough power to keep the batteries charged. The result is an automatic shutdown of the payload, although there is a chance InSight might still be able to keep communicating until the end of the year.

Almost all of InSight's instruments have already been powered down, but the seismometer remains active and able to detect seismic activity on Mars (such as Marsquakes.) The seismometer was expected to be active until the end of June, at which point it too would be shut-down in order to eke out the lander's dwindling supply of power just a little longer.

However, the team has elected to keep the seismometer going as long as possible, reasoning that the science return justifies a shortening of the probe's life. To do this, the team will deactivate InSight's fault detection system, which is designed to automatically switch into a "safe mode" in the event of a drift outside of existing temperatures or a drop in power.

This will mean the seismometer should operate longer, but the price is an earlier end to the mission - late August or early September is the estimate - and the lander being put at risk of unexpected events before controllers on Earth have a chance to respond.

The lander arrived on Mars in November 2018 after a seven month journey from Earth. It was intended to operate for one Martian year (plus 40 Martian days) until November 24, 2020 although has endured far longer. As well as a seismometer, robot arm and temperature and wind sensors, the lander also carried a heat flow probe, which unsuccessfully attempted to burrow beneath the surface of the planet.

"The goal is to get scientific data all the way to the point where InSight can't operate at all, rather than conserve energy and operate the lander with no science benefit," said Chuck Scott, InSight's project manager at NASA's Jet Propulsion Laboratory in Southern California.

We remain hopeful that a cleaning event might miraculously restore power to the stricken lander. If not (and problematic Heat Flow and Physical Properties Package - aka the Mole - aside) then its achievements and longevity are to be applauded, as is the ingenuity of the team that designed and operated it. ®

The Mars Ingenuity helicopter is in need of a patch to work around a failed sensor before another flight can be attempted.

The helicopter's inclinometer failed during a recommissioning effort ahead of the 29th flight. The sensor is critical as it will reposition the craft nearer to the Perseverance rover for communication purposes.

Although not required during flight, the inclinometer (which consists of two accelerometers) is used to measure gravity prior to spin-up and takeoff. "The direction of the sensed gravity is used to determine how Ingenuity is oriented relative to the downward direction," said Håvard Grip, Ingenuity Mars Helicopter chief pilot.

The Martian InSight lander will no longer be able to function within months as dust continues to pile up on its solar panels, starving it of energy, NASA reported on Tuesday.

Launched from Earth in 2018, the six-metre-wide machine's mission was sent to study the Red Planet below its surface. InSight is armed with a range of instruments, including a robotic arm, seismometer, and a soil temperature sensor. Astronomers figured the data would help them understand how the rocky cores of planets in the Solar System formed and evolved over time.

"InSight has transformed our understanding of the interiors of rocky planets and set the stage for future missions," Lori Glaze, director of NASA's Planetary Science Division, said in a statement. "We can apply what we've learned about Mars' inner structure to Earth, the Moon, Venus, and even rocky planets in other solar systems."

NASA is finally ready to launch its unmanned Orion spacecraft and put it in the orbit of the Moon. Lift-off from Earth is now expected in late August using a Space Launch System (SLS) rocket.

This launch, a mission dubbed Artemis I, will be a vital stage in the Artemis series, which has the long-term goal of ferrying humans to the lunar surface using Orion capsules and SLS technology.

Earlier this week NASA held a wet dress rehearsal (WDR) for the SLS vehicle – fueling it and getting within 10 seconds of launch. The test uncovered 13 problems, including a hydrogen fuel leak in the main booster, though NASA has declared that everything's fine for a launch next month.

The software on ESA's Mars Express spacecraft is to be upgraded after nearly two decades, giving the orbiter capabilities to hunt for water beneath the planet and study its larger moon, Phobos.

Mars Express was launched on June 2, 2003, and was initially made up of two components: the Mars Express Orbiter and the Beagle 2 lander. Unfortunately, the lander failed to make contact with Earth after it was released and arrived at the surface of the Red Planet. It is presumed lost. The orbiter, however, is still working after 19 years in service, spinning around Mars.

Now, engineers at the Istituto Nazionale di Astrofisica (INAF), Italy, are revamping the spacecraft's software. The upgrade will allow the Mars Express Orbiter to continue searching for water locked beneath the Martian surface using its MARSIS radio-wave instrument and monitor the planet's closest satellite, Phobos, more efficiently. MARSIS is today operated by INAF and funded by the Italian Space Agency.

NASA has chosen the three companies it will fund to develop a nuclear fission reactor ready to test on the Moon by the end of the decade.

This power plant is set to be a vital component of Artemis, the American space agency's most ambitious human spaceflight mission to date. This is a large-scale project to put the first woman and first person of color on the Moon, and establish a long-term presence on Earth's natural satellite.

NASA envisions [PDF] astronauts living in a lunar base camp, bombing around in rovers, and using it as a launchpad to explore further out into the Solar System. In order for this to happen, it'll need to figure out how to generate a decent amount of power somehow.

Over recent years, Uncle Sam has loosened its tight-lipped if not dismissive stance on UFOs, or "unidentified aerial phenomena", lest anyone think we're talking about aliens. Now, NASA is the latest body to get in on the act.

In a statement released June 9, the space agency announced it would be commissioning a study team, starting work in the fall, to examine unidentified aerial phenomena or UAPs, which it defined as "observations of events in the sky that cannot be identified as aircraft or known natural phenomena."

NASA emphasized that the study would be from a "scientific perspective" – because "that's what we do" – and focus on "identifying available data, how best to collect future data, and how NASA can use that data to move the scientific understanding of UAPs forward."

Video On Friday NASA released footage of the Ingenuity Mars Helicopter flying further and faster than ever before.

The film recorded during Ingenuity's 25th flight on April 8 when it flew 704 meters at up to 5.5 meters per second.

In the sped-up footage shown below, the vehicle climbs to 10 meters, heads southwest, accelerates to max speed in under three seconds, and flies over Martian sand ripples and rock fields before landing on relatively flat terrain.

Pic When space junk crashed into the Moon earlier this year, it made not one but two craters on the lunar surface, judging from images revealed by NASA on Friday.

Astronomers predicted a mysterious object would hit the Moon on March 4 after tracking the debris for months. The object was large, and believed to be a spent rocket booster from the Chinese National Space Administration's Long March 3C vehicle that launched the Chang'e 5-T1 spacecraft in 2014.

The details are fuzzy. Space agencies tend to monitor junk closer to home, and don't really keep an eye on what might be littering other planetary objects. It was difficult to confirm the nature of the crash; experts reckoned it would probably leave behind a crater. Now, NASA's Lunar Reconnaissance Orbiter (LRO) has spied telltale signs of an impact at the surface. Pictures taken by the probe reveal an odd hole shaped like a peanut shell on the surface of the Moon, presumably caused by the Chinese junk.

NASA engineers had to work fast to avoid another leak affecting the latest Artemis dry run, just hours after an attempt to reboost the International Space Station (ISS) via the Cygnus freighter was aborted following a few short seconds.

The US space agency on Monday rolled the huge Artemis I stack back to its Florida launchpad having worked through the leaks and problems that had beset its previous attempt at fueling the beast in April for an earlier dress rehearsal of the final countdown.

As propellant was loaded into the rocket, controllers noted a hydrogen leak in the quick-disconnect that attaches an umbilical from the tail service mast on the mobile launcher to the core stage of the rocket.

The SOFIA aircraft has returned to New Zealand for a final time ahead of the mission's conclusion later this year.

The Stratospheric Observatory for Infrared Astronomy (SOFIA) is a modified Boeing 747SP aircraft, designed to carry a 2.7-meter reflecting telescope into the stratosphere, above much of Earth's infrared-blocking atmosphere.

A collaboration between NASA and the German Aerospace Center (DLR), development began on the project in 1996. SOFIA saw first light in 2010 and achieved full operational capability in 2014. Its prime mission was completed in 2019 and earlier this year, it was decided that SOFIA would be grounded for budgetary reasons. Operations end "no later than" September 30, 2022, followed by an "orderly shutdown."

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