adplus-dvertising
Connect with us

Science

Perseverance rover picked up a pet rock and the two are inseparable (for now) – The Weather Network

Published

 on


When NASA’s Perseverance rover landed on Mars back in February 2021, it brought along a small friend from Earth, the Ingenuity helicopter. With the little drone off flying around, making headlines of its own and generally wowing us all, the rover has been exploring all by itself — or so we thought.

As seen in images from the rover’s hazard avoidance cameras (hazcams), Perseverance has had a constant companion since early February 2022.

This left front hazcam image, captured on Feb 6, 2022 (Sol 343 of the mission), shows a sizeable rock caught inside Perseverance’s left front wheel. The inset image reveals what may be this same rock beside the rover’s wheel on Jan 31 (Sol 337) Credit: Scott Sutherland/NASA/JPL-Caltech

Perseverance picked up a Martian pet rock!

According to the mission team, this rock has been hitching a ride with Perseverance for more than 8.5 kilometres now. This journey has carried it from south of the Séítah region, north through the Octavia E. Butler Landing site, and then circumventing the rougher terrain of the area towards the base of the river delta.

Perseverance-Pet-Rock-Journey-NASA-JPL-CaltechThis map shows the path of Perseverance from February 18, 2021 to June 17, 2022, along with inset images of the ‘pet rock’ that has accompanied it since at least Feb 6, 2022. The yellow lines are the flight paths of the Ingenuity helicopter to date, and ‘pins’ indicate the June 17 (Sol 471) location of both rover and helicopter. Credit: Scott Sutherland/NASA/JPL-Caltech

“This is not the first time a rock has hitched a ride on a Mars rover mission,” Eleni Ravanis, a student collaborator with the Perseverance mission from the University of Hawai’i at Mānoa, wrote in a mission update on June 2.

“Some 18 years ago, a ‘potato-sized’ rock found its way into the Spirit rover’s rear right wheel, and had to be dislodged,” Ravanis explained. “On the Curiosity rover, the front right wheel has periodically picked up its own travelling companion. While it’s unclear exactly how long these rocks stuck around, they tended to hop off after a few weeks. Perseverance’s current companion is therefore on its way to setting Mars hitch-hiking records!”

Although the rock is sizeable, perhaps 20-25 cm across, Ravanis says that it is not causing any damage to Perseverance’s wheel. Instead, it’s likely just making a lot of noise as it bumps and slides around while the rover drives.

Mars Perseverance Pet Rock - Sol-0371 - 07-03-2022 - NASA/JPL-CaltechPerseverance’s ‘pet rock’ on March 7, 2022 (Sol 371), as the rover drove through the Octavia E. Butler Landing site. Credit: NASA/JPL-Caltech

The future for the pet rock is uncertain. It may continue hitching a ride with Perseverance for a day, or maybe another week, or it could be months. When it does finally get dislodged, though, it may present a puzzle to any Mars explorer who finds it in the future.

The rocks and sediments on the floor of Jezero crater likely formed under very different conditions than those in the delta. Unless the pet rock remains with Perseverance indefinitely, wherever it may be found in the future, it will be an anomaly — a rock very different from those around it, that simply doesn’t belong there under any normal circumstances.

Mars Perseverance River Delta Ridge - Sol 461 - NASA/JPL-CaltechThis composite image shows Jezero crater’s river delta, as seen from Perseverance’s Navigational camera (navcam) on June 7, 2022 (Sol 461), while the rover sat at the ridge base. The minerals and rocks contained within the layered sediments here are from upstream of the crater, washed here by river flow billions of years ago. They are expected to be quite different from those found in the crater floor. Credit: NASA/JPL-Caltech

Also, depending on how far into the future this is, the rover could have travelled a significant distance away, with the wind eventually erasing its tracks through the dust and sand. Thus, there may be no context for how the rock got there.

“So: if you’re a Martian geologist from the future reading this, maybe a Martian graduate student tasked with mapping the historical site of Jezero crater: take heed,” Ravanis wrote. “If you’ve found a rock that looks out of place, you might just be looking at the former pet rock of Perseverance!”

Adblock test (Why?)

728x90x4

Source link

Continue Reading

Science

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

Published

 on

 

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.

Source link

Continue Reading

News

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

Published

 on

 

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.

Source link

Continue Reading

News

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

Published

 on

 

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.

Source link

Continue Reading

Trending