adplus-dvertising
Connect with us

Science

3 spacecraft carrying robotic explorers to arrive on Mars less than 2 weeks apart – Global News

Published

 on


After hurtling hundreds of millions of miles through space since last summer, three robotic explorers are ready to hit the brakes at Mars.

The stakes — and anxiety — are sky high.

The United Arab Emirates’ orbiter reaches Mars on Tuesday, followed less than 24 hours later by China’s orbiter-rover combo. NASA’s rover, the cosmic caboose, will arrive on the scene a week later, on Feb. 18, to collect rocks for return to Earth — a key step in determining whether life ever existed at Mars.

Read more:
COMMENTARY: Upcoming space missions to keep an eye out for in 2021

Both the UAE and China are newcomers at Mars, where more than half of Earth’s emissaries have failed. China’s first Mars mission, a joint effort with Russia in 2011, never made it past Earth’s orbit.

Story continues below advertisement

“We are quite excited as engineers and scientists, at the same time quite stressed and happy, worried, scared,” said Omran Sharaf, project manager for the UAE.

All three spacecraft rocketed away within days of one another last July, during an Earth-to-Mars launch window that occurs only every two years. That’s why their arrivals are also close together.

Called Amal, or Hope in Arabic, the Gulf nation’s spacecraft is seeking an especially high orbit — 22,000 kilometres by 44,000 kilometres — all the better to monitor the Martian weather.


Click to play video 'Mars was covered in ice sheets, not flowing rivers: UBC study'



0:50
Mars was covered in ice sheets, not flowing rivers: UBC study


Mars was covered in ice sheets, not flowing rivers: UBC study – Aug 3, 2020

China’s duo — called Tianwen-1, or “Quest for Heavenly Truth” — will remain paired in orbit until May, when the rover separates to descend to the dusty, ruddy surface. If all goes well, it will be only the second country to land successfully on the red planet.

Story continues below advertisement

The U.S. rover Perseverance, by contrast, will dive in straight away for a harrowing sky-crane touchdown similar to the Curiosity rover’s grand Martian entrance in 2012. The odds are in NASA’s favour: It’s nailed eight of its nine attempted Mars landings.

Despite their differences — the 1-ton Perseverance is larger and more elaborate than the Tianwen-1 rover — both will prowl for signs of ancient microscopic life.

Perseverance’s $3 billion mission is the first leg in a U.S.-European effort to bring Mars samples to Earth in the next decade.

Read more:
NASA launches Mars rover to look for ancient life on red planet

“To say we’re pumped about it, well that would be a huge understatement,” said Lori Glaze, NASA’s planetary science director.

Perseverance is aiming for an ancient river delta that seems a logical spot for once harbouring life. This landing zone in Jezero Crater is so treacherous that NASA nixed it for Curiosity, but so tantalizing that scientists are keen to get hold of its rocks.

“When the scientists take a look at a site like Jezero Crater, they see the promise, right?” said Al Chen, who’s in charge of the entry, descent and landing team at NASA’s Jet Propulsion Laboratory in Pasadena, California. “When I look at Jezero, I see danger. There’s danger everywhere.”

Story continues below advertisement

Steep cliffs, deep pits and fields of rocks could cripple or doom Perseverance, following its seven-minute atmospheric plunge. With an 11 1/2-minute communication lag each way, the rover will be on its own, unable to rely on flight controllers. Amal and Tianwen-1 will also need to operate autonomously while manoeuvring into orbit.


Click to play video 'NASA’s Perseverance rover blasts-off to Mars'



2:27
NASA’s Perseverance rover blasts-off to Mars


NASA’s Perseverance rover blasts-off to Mars – Jul 30, 2020

Until Perseverance, NASA sought out flat, boring terrain on which to land — “one giant parking lot,” Chen said. That’s what China’s Tianwen-1 rover will be shooting for in Mars’ Utopia Planitia.

NASA is upping its game thanks to new navigation technology designed to guide the rover to a safe spot. The spacecraft also has a slew of cameras and microphones to capture the sights and sounds of descent and landing, a Martian first.

Faster than previous Mars vehicles but still moving at a glacial pace, the six-wheeled Perseverance will drive across Jezero, collecting core samples of the most enticing rocks and gravel. The rover will set the samples aside for retrieval by a fetch rover launching in 2026.

Story continues below advertisement

Under an elaborate plan still being worked out by NASA and the European Space Agency, the geologic treasure would arrive on Earth in the early 2030s. Scientists contend it’s the only way to ascertain whether life flourished on a wet, watery Mars 3 billion to 4 billion years ago.

Read more:
SpaceX to launch first all-civilian flight into orbit by end of 2021

NASA’s science mission chief, Thomas Zurbuchen, considers it “one of the hardest things ever done by humanity and certainly in space science.”

The U.S. is still the only country to successfully land on Mars, beginning with the 1976 Vikings. Two spacecraft are still active on the surface: Curiosity and InSight.

Smashed Russian and European spacecraft litter the Martian landscape, meanwhile, along with NASA’s failed Mars Polar Lander from 1999.

Getting into orbit around Mars is less complicated, but still no easy matter, with about a dozen spacecraft falling short. Mars fly-bys were the rage in the 1960s and most failed; NASA’s Mariner 4 was the first to succeed in 1965.


Click to play video 'Trump discusses Artemis program, says return to Moon will be launching pad to Mars'



4:11
Trump discusses Artemis program, says return to Moon will be launching pad to Mars


Trump discusses Artemis program, says return to Moon will be launching pad to Mars – May 30, 2020

Six spacecraft currently are operating around Mars: three from the U.S., two from Europe and one from India. The UAE hopes to make it seven with its $200-plus million mission.

Story continues below advertisement

The UAE is especially proud that Amal was designed and built by its own citizens, who partnered with the University of Colorado at Boulder and other U.S. institutions, not simply purchased from abroad. Its arrival at Mars coincides with this year’s 50th anniversary of the country’s founding.

“Starting off the year with this milestone is something very important for the people” of the UAE, said Sharaf.

China, hasn’t divulged much in advance. Even the spacecraft’s exact arrival time on Wednesday has yet to be announced.

Read more:
Early Mars was covered in ice rather than warm, free-flowing rivers, new study shows

The China Academy of Space Technology’s Ye Peijian noted that Tianwen-1 has three objectives: orbiting the planet, landing and releasing the rover. If successful, he said in a statement “it will become the world’s first Mars expedition accomplishing all three goals with one probe.”

The coronavirus pandemic has complicated each step of each spacecraft’s 300 million-mile (480 million-kilometre) journey to Mars. It even kept the European and Russian space agencies’ joint Mars mission grounded until the next launch window in 2022.

The flight control rooms will contain fewer people on the big day, with staff spread over a wider area and working from home. Desks have dividers and partitions. Masks and social distancing are mandatory.

Story continues below advertisement

Perseverance’s deputy project manager Matt Wallace, who’s working his fifth Mars rover mission, said the pandemic won’t dampen the mood come landing day.

“I don’t think COVID’s going to be able to stop us from jumping up and down, and fist-bumping,” he said. “You’re going to see a lot of happy people no matter what, once we get this thing on the surface safely.”

___

The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Department of Science Education. The AP is solely responsible for all content.

© 2021 The Canadian Press

Let’s block ads! (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