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NASA's InSight Mars lander has taken its final selfie. Here it is – ZDNet

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InSight’s Final Selfie.


Image: NASA/JPL-Caltech

NASA’s InSight Mars lander has sent back its last selfie of its dust-covered solar panels and deck, in an image taken on its 1,211th ‘sol’ or Martian day of the mission on April 24. 

Insight has been roaming the red planet for the past 3.5 years, capturing images and data that allowed scientists to approximate its crust and core, and refine models of how planets evolved from dust circling the Sun. 

Innovation

Insight’s scientific mission is set to conclude in summer after which it will run out of power. The lander is solar-powered, but dust covering the seven-feet wide solar panels has reduced its production capacity from around 5,000 watt-hours per sol to 500 watt-hours per sol. Once these panels generated power equivalent to running an electric oven for 40 minutes, they now can only power one for 10 minutes. The lander is equipped with two 25 amp-hour lithium-ion rechargeable batteries for energy storage. 

SEE: NASA’s Mars helicopter just took these remarkable photos of the rover’s landing gear

With those constraints, even taking a selfie requires some calculation to stay within the spacecraft’s power budget. The selfie arm will now go into the “retirement pose”, according to NASA.    

“The arm needs to move several times in order to capture a full selfie. Because InSight’s dusty solar panels are producing less power, the team will soon put the lander’s robotic arm in its resting position (called the “retirement pose”) for the last time in May of 2022,” NASA JPL said

InSight launched from Vandenberg Air Force Base in California on May 5, 2018 and landed on Mars on November 26, 2018, six minutes after hitting the the Martian atmosphere at 12,300 mph (19,800 kilometers per hour), according to NASA. It was the eighth landing on Mars in human history. 

Dust has played a significant role in the InSight lander’s capability to continue the mission. An epic dust storm on Mars in 2018 is believed to have been behind the demise of NASA’s Opportunity rover. A similar storm could have threatened InSight’s mission, too. The threat from dust is two-fold: dust storms obscure available sunlight, while dust directly on the solar panels reduce their capacity to absorb sunlight.   

In September, 2021, on its 1,000th sol of the mission, InSight measured a “marsquake” with a magnitude of 4.2, which helped scientists see what’s happening beneath Mars’ surface. 

Located on the dark side of Mars at the time, dust on the solar panels was already restricting their power output. NASA used Insight’s robotic arm to sprinkle sand near one solar panel, hoping wind gusts would make the granules sweep off some of the dust. The plan worked.

SEE: NASA’s Mars lander is running out of power. Here’s what happens next

Then on January 7, 2022, InSight went into safe mode after a major dust storm obscured sunlight from its solar panels. But by that stage, performing the ‘sand sweep’ technique had become difficult because of reduced available energy. InSight’s engineers were hoping a whirlwind would clear dust from the panels and had restricted the use of science instruments. By February 15, the solar panels’ output levels had returned to pre-storm levels. 

InSight’s onboard computers for command and data handling are derived from NASA’s 2014 Mars Atmosphere and Volatile Evolution (MAVEN) and its 2011 Moon Gravity Recovery and Interior Laboratory (GRAIL) missions. The system has two redundant computers. Its core is a radiation-hardened 115.5 MHz CPU with a PowerPC 750 architecture called RAD 750 that was made by BAE Systems.

Its flight software is written in C and C++ on the VxWorks real-time operating system, which monitors the spacecraft’s health, checks for commands to execute, and handles communications and controls. It also checks commands for faults and handles corrective steps when it detects irregularities. 

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An animation of the last selfie.


Image: NASA/JPL-Caltech

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The body of a Ugandan Olympic athlete who was set on fire by her partner is received by family

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NAIROBI, Kenya (AP) — The body of Ugandan Olympic athlete Rebecca Cheptegei — who died after being set on fire by her partner in Kenya — was received Friday by family and anti-femicide crusaders, ahead of her burial a day later.

Cheptegei’s family met with dozens of activists Friday who had marched to the Moi Teaching and Referral Hospital’s morgue in the western city of Eldoret while chanting anti-femicide slogans.

She is the fourth female athlete to have been killed by her partner in Kenya in yet another case of gender-based violence in recent years.

Viola Cheptoo, the founder of Tirop Angels – an organization that was formed in honor of athlete Agnes Tirop, who was stabbed to death in 2021, said stakeholders need to ensure this is the last death of an athlete due to gender-based violence.

“We are here to say that enough is enough, we are tired of burying our sisters due to GBV,” she said.

It was a somber mood at the morgue as athletes and family members viewed Cheptegei’s body which sustained 80% of burns after she was doused with gasoline by her partner Dickson Ndiema. Ndiema sustained 30% burns on his body and later succumbed.

Ndiema and Cheptegei were said to have quarreled over a piece of land that the athlete bought in Kenya, according to a report filed by the local chief.

Cheptegei competed in the women’s marathon at the Paris Olympics less than a month before the attack. She finished in 44th place.

Cheptegei’s father, Joseph, said that the body will make a brief stop at their home in the Endebess area before proceeding to Bukwo in eastern Uganda for a night vigil and burial on Saturday.

“We are in the final part of giving my daughter the last respect,” a visibly distraught Joseph said.

He told reporters last week that Ndiema was stalking and threatening Cheptegei and the family had informed police.

Kenya’s high rates of violence against women have prompted marches by ordinary citizens in towns and cities this year.

Four in 10 women or an estimated 41% of dating or married Kenyan women have experienced physical or sexual violence perpetrated by their current or most recent partner, according to the Kenya Demographic and Health Survey 2022.

The Canadian Press. All rights reserved.

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The ancient jar smashed by a 4-year-old is back on display at an Israeli museum after repair

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TEL AVIV, Israel (AP) — A rare Bronze-Era jar accidentally smashed by a 4-year-old visiting a museum was back on display Wednesday after restoration experts were able to carefully piece the artifact back together.

Last month, a family from northern Israel was visiting the museum when their youngest son tipped over the jar, which smashed into pieces.

Alex Geller, the boy’s father, said his son — the youngest of three — is exceptionally curious, and that the moment he heard the crash, “please let that not be my child” was the first thought that raced through his head.

The jar has been on display at the Hecht Museum in Haifa for 35 years. It was one of the only containers of its size and from that period still complete when it was discovered.

The Bronze Age jar is one of many artifacts exhibited out in the open, part of the Hecht Museum’s vision of letting visitors explore history without glass barriers, said Inbal Rivlin, the director of the museum, which is associated with Haifa University in northern Israel.

It was likely used to hold wine or oil, and dates back to between 2200 and 1500 B.C.

Rivlin and the museum decided to turn the moment, which captured international attention, into a teaching moment, inviting the Geller family back for a special visit and hands-on activity to illustrate the restoration process.

Rivlin added that the incident provided a welcome distraction from the ongoing war in Gaza. “Well, he’s just a kid. So I think that somehow it touches the heart of the people in Israel and around the world,“ said Rivlin.

Roee Shafir, a restoration expert at the museum, said the repairs would be fairly simple, as the pieces were from a single, complete jar. Archaeologists often face the more daunting task of sifting through piles of shards from multiple objects and trying to piece them together.

Experts used 3D technology, hi-resolution videos, and special glue to painstakingly reconstruct the large jar.

Less than two weeks after it broke, the jar went back on display at the museum. The gluing process left small hairline cracks, and a few pieces are missing, but the jar’s impressive size remains.

The only noticeable difference in the exhibit was a new sign reading “please don’t touch.”

The Canadian Press. All rights reserved.

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B.C. sets up a panel on bear deaths, will review conservation officer training

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VICTORIA – The British Columbia government is partnering with a bear welfare group to reduce the number of bears being euthanized in the province.

Nicholas Scapillati, executive director of Grizzly Bear Foundation, said Monday that it comes after months-long discussions with the province on how to protect bears, with the goal to give the animals a “better and second chance at life in the wild.”

Scapillati said what’s exciting about the project is that the government is open to working with outside experts and the public.

“So, they’ll be working through Indigenous knowledge and scientific understanding, bringing in the latest techniques and training expertise from leading experts,” he said in an interview.

B.C. government data show conservation officers destroyed 603 black bears and 23 grizzly bears in 2023, while 154 black bears were killed by officers in the first six months of this year.

Scapillati said the group will publish a report with recommendations by next spring, while an independent oversight committee will be set up to review all bear encounters with conservation officers to provide advice to the government.

Environment Minister George Heyman said in a statement that they are looking for new ways to ensure conservation officers “have the trust of the communities they serve,” and the panel will make recommendations to enhance officer training and improve policies.

Lesley Fox, with the wildlife protection group The Fur-Bearers, said they’ve been calling for such a committee for decades.

“This move demonstrates the government is listening,” said Fox. “I suspect, because of the impending election, their listening skills are potentially a little sharper than they normally are.”

Fox said the partnership came from “a place of long frustration” as provincial conservation officers kill more than 500 black bears every year on average, and the public is “no longer tolerating this kind of approach.”

“I think that the conservation officer service and the B.C. government are aware they need to change, and certainly the public has been asking for it,” said Fox.

Fox said there’s a lot of optimism about the new partnership, but, as with any government, there will likely be a lot of red tape to get through.

“I think speed is going to be important, whether or not the committee has the ability to make change and make change relatively quickly without having to study an issue to death, ” said Fox.

This report by The Canadian Press was first published Sept. 9, 2024.

The Canadian Press. All rights reserved.

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