As InSight lander nears end, NASA details meteorite strike on Mars | Canada News Media
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As InSight lander nears end, NASA details meteorite strike on Mars

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By Will Dunham

WASHINGTON -The InSight lander, perched on the surface of Mars since 2018, will run out of power and stop operations within four to eight weeks, NASA said on Thursday, even as scientists detailed a big meteorite strike it detected that gouged boulder-sized chunks of ice surprisingly close to the planet’s equator.

Dust has been accumulating on solar panels that draw power for the U.S. space agency’s stationary lander, exacerbated by a dust storm, and has been depleting its batteries, planetary geophysicist Bruce Banerdt of NASA‘s Jet Propulsion Laboratory, InSight mission’s principal investigator, told a briefing.

InSight’s mission, which has helped reveal the internal structure of Mars and its seismic activity, originally was planned for two years but was extended to four. When the power runs out, NASA will lose contact with InSight, Banerdt said.

“InSight has been successful beyond my expectations,” Banerdt told Reuters. “We have determined the thickness of the crust, the size and density of the core, and details of the structure of the mantle. For the first time we have a detailed global map of the deep interior of another planet – other than the Earth and moon.”

InSight also established that Mars is seismically active, detecting 1,318 marsquakes.

Two research papers published in the journal Science detailed meteorite strikes on the Martian surface detected by InSight in September and December of last year. Seismic waves triggered by the impacts revealed fresh details about the structure of the Martian crust, the planet’s outer layer.

“What an awesome capstone science result to end on – literally going out with a bang,” Lori Glaze, director of NASA‘s Planetary Science Division, told reporters.

Of particular interest was a space rock with a diameter estimated at 16-39 feet (5-12 meters) that crashed last Dec. 24 in a region called Amazonis Planitia, carving a crater about 490 feet (150 meters) wide and 70 feet (21 meters) deep.

It caused a magnitude 4 quake detected by InSight’s seismometer instrument, while cameras aboard the Mars Reconnaissance Orbiter observed the crater from space. Boulder-sized blocks of ice were seen strewn around the crater’s rim.

Objects that large enter Earth’s atmosphere about once a year but generally burn up in our planet’s thicker atmosphere.

“A whole lot of water ice was exposed by this impact,” Brown University planetary scientist Ingrid Daubar, part of the InSight science team, told the briefing. “This was surprising because this is the warmest spot on Mars, the closest to the equator we’ve ever seen water ice.”

Glaze said that while ice is known to exist near the Martian poles future human exploration missions would aim to put astronauts as close to the equator as possible for warmer conditions. Ice near the equator could provide resources such as drinking water and rocket propellant.

“Having access to ice at these lower latitudes, that ice could be converted into water, oxygen or hydrogen – that could be really useful,” Glaze said.

The September 2021 crater also was large, about 425 feet (130 meters) wide. The two were the largest impacts detected by InSight since arriving on Mars.

InSight for the first time detected seismic waves traveling like ripples on water along the Martian surface, as opposed to deeper in the planet’s body. The reverberation from the two impacts gave clues about the crust over a wide geographical expanse in the northern hemisphere.

The three-legged InSight sits in a vast and relatively flat plain called Elysium Planitia, just north of the equator. Until now, InSight had obtained data on the structure of the Martian crust, consisting mostly of fine-grained volcanic basalt rock, only in the area beneath its landing site.

The crust at the landing site was composed of relatively soft material, less dense rock. This was not the case for the other regions covered by the new data, where the crust appears denser.

“As a consequence of our analysis of surface waves, we now understand that the crust of Mars north of the equatorial dichotomy – a conspicuous feature seen from the topographic variation on Mars that divides the southern highlands and northern lowlands – has a relatively uniform structure,” said seismologist Doyeon Kim of the Institute of Geophysics at ETH Zurich, lead author of one of the studies.

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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.

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