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Astronaut Talks Physical/Mental Health, Space And Mars – country94.ca

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Canadian astronaut David Saint-Jacques. (Image: www.canada.ca)

Kids at a local middle school will never have to wonder why the sky is blue but space is black because an astronaut explained it to them.

Quispamsis Middle School won a visit from Canadian astronaut David Saint-Jacques through the Junior Astronauts program offered by the Canadian Space Agency.

The Junior Astronauts program designs activities for youth in grades 6 to 9 in science and technology, fitness and nutrition, and communications and teamwork to interest them in a future in science, technology, engineering and math.

Saint-Jacques is an engineer, astrophysicist, family doctor. On December 3, 2018, he flew to the International Space Station and spent 204 days in space, the longest Canadian mission to date.

Saint-Jacques advised his audience to take care of themselves especially when it comes to physical and mental health. He said they might feel young and like they will be healthy forever but they still need to take care of what they eat, of how much they sleep and to exercise at least a little bit.

“Your body really is the most important tool you have to accomplish whatever dream you have,” he said.

Saint-Jacques said it’s never too early to practice taking responsibility and becoming a person worthy of confidence.

“As a child, a lot of people make decisions for us and that’s OK but eventually, slowly you need to become responsible for yourself and it’s always good to practice holding your promises to practice taking responsibility for things and becoming someone others can trust I think is really important for whatever you want to do in life,” he said.

Saint-Jacques said it’s important to have fun because you need to have a balance.

“We all want to be someone useful and we all want to be the most beloved person but you have to have fun because you’re no good when you’re sad and the only way to have fun and be successful in your career is to do something you love,” he said.

Canadian astronaut David Saint-Jacques (Photo: Courtesy of the Canadian Space Agency)

Saint-Jacques said it was harder to adjust back to earth than it was to adjust to space. He said he lost his sense of balance, his body forgot to pump blood more to his head than his feet, and like he had the flu or was moving in slow motion which astronauts tend to call “Space Brain”.

One question asked was how he took care of his mental health.

He said when he was having a hard day, he would go to the window and look at Earth to remember why he’s doing it. He said because of the pandemic, it’s like every person is an astronaut in their home dealing with many similar problems on a different scale.

“There’s graffiti on the space station left by a very old astronaut from a very long time ago it says the most important thing is what you’re doing right now,” he said.

Saint-Jacques said one way to do well is to resolve to talk more to avoid explosions but leave others alone if they need space. He suggested getting organized, don’t stay in pyjamas all day, and make a schedule otherwise, you won’t achieve what you want.

“Sometimes we have a dream that seems too big, too crazy, too ambitious, and we’re afraid that we’re not going to make it. The error is to decide not to try in case we fail. That would be a big mistake,” said Saint-Jacques.

“Your dream is not a destination, it’s just a direction. It’s like the North Star. You’ll never get to the North Star ever, but you can still use it as a guide.”

Some of the questions asked were:

  • How long did it take to re-adjust to the gravity on Earth (One week before he could walk without holding someone’s hand, a month before he could ride a bike and two months to feel normal)
  • What was the hardest training he took (Learning to speak Russian in order to learn to fly the Russian rockets, plus the three years away from his family and the balance between work, family and friends)
  • What were some of the first noticeable changes his body experienced in a zero-gravity environment (The feeling of his organs floating up, like jumping off a high diving board, and nausea, congestion and disorientation)

    Canadian astronaut David Saint-Jacques (Photo: Screengrab)

  • How can you tell when you pass through the atmosphere (the rocket stops shaking)
  • What it was like when he first arrived at the space station (The feeling that it had moved from being a machine to a home with his friends)
  • How often were you able to communicate with people on earth and how often is it with family (Making a call depends on the satellite connection. He called his wife at least every day and every weekend had a video conversation with his family)
  • Was there anything he had to improvise for on the ISS (Some repairs needed to be done because there was no procedure so every day there was improvisation because you can’t plan everything)
  • If space has a sun, why is it so dark (In space even during the day you see the sun while on earth the sky is blue because sunlight goes through the atmosphere, then diffuses depending on the colours but the blue light doesn’t go straight through although red does. Space is black because it has no reason to be any other colour)
  • Is it possible to one day live on Mars (There’s a lot of issues about living in space so first, we have to get Mars, then we have to deal with the radiation, and then figure out how to land people on Mars ready to work, or to keep them alive since Mars has nothing we need so that will need to require life support systems)

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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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Asteroid Apophis will visit Earth in 2029, and this European satellite will be along for the ride

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The European Space Agency is fast-tracking a new mission called Ramses, which will fly to near-Earth asteroid 99942 Apophis and join the space rock in 2029 when it comes very close to our planet — closer even than the region where geosynchronous satellites sit.

Ramses is short for Rapid Apophis Mission for Space Safety and, as its name suggests, is the next phase in humanity’s efforts to learn more about near-Earth asteroids (NEOs) and how we might deflect them should one ever be discovered on a collision course with planet Earth.

In order to launch in time to rendezvous with Apophis in February 2029, scientists at the European Space Agency have been given permission to start planning Ramses even before the multinational space agency officially adopts the mission. The sanctioning and appropriation of funding for the Ramses mission will hopefully take place at ESA’s Ministerial Council meeting (involving representatives from each of ESA’s member states) in November of 2025. To arrive at Apophis in February 2029, launch would have to take place in April 2028, the agency says.

This is a big deal because large asteroids don’t come this close to Earth very often. It is thus scientifically precious that, on April 13, 2029, Apophis will pass within 19,794 miles (31,860 kilometers) of Earth. For comparison, geosynchronous orbit is 22,236 miles (35,786 km) above Earth’s surface. Such close fly-bys by asteroids hundreds of meters across (Apophis is about 1,230 feet, or 375 meters, across) only occur on average once every 5,000 to 10,000 years. Miss this one, and we’ve got a long time to wait for the next.

When Apophis was discovered in 2004, it was for a short time the most dangerous asteroid known, being classified as having the potential to impact with Earth possibly in 2029, 2036, or 2068. Should an asteroid of its size strike Earth, it could gouge out a crater several kilometers across and devastate a country with shock waves, flash heating and earth tremors. If it crashed down in the ocean, it could send a towering tsunami to devastate coastlines in multiple countries.

Over time, as our knowledge of Apophis’ orbit became more refined, however, the risk of impact  greatly went down. Radar observations of the asteroid in March of 2021 reduced the uncertainty in Apophis’ orbit from hundreds of kilometers to just a few kilometers, finally removing any lingering worries about an impact — at least for the next 100 years. (Beyond 100 years, asteroid orbits can become too unpredictable to plot with any accuracy, but there’s currently no suggestion that an impact will occur after 100 years.) So, Earth is expected to be perfectly safe in 2029 when Apophis comes through. Still, scientists want to see how Apophis responds by coming so close to Earth and entering our planet’s gravitational field.

“There is still so much we have yet to learn about asteroids but, until now, we have had to travel deep into the solar system to study them and perform experiments ourselves to interact with their surface,” said Patrick Michel, who is the Director of Research at CNRS at Observatoire de la Côte d’Azur in Nice, France, in a statement. “Nature is bringing one to us and conducting the experiment itself. All we need to do is watch as Apophis is stretched and squeezed by strong tidal forces that may trigger landslides and other disturbances and reveal new material from beneath the surface.”

The Goldstone radar’s imagery of asteroid 99942 Apophis as it made its closest approach to Earth, in March 2021. (Image credit: NASA/JPL–Caltech/NSF/AUI/GBO)

By arriving at Apophis before the asteroid’s close encounter with Earth, and sticking with it throughout the flyby and beyond, Ramses will be in prime position to conduct before-and-after surveys to see how Apophis reacts to Earth. By looking for disturbances Earth’s gravitational tidal forces trigger on the asteroid’s surface, Ramses will be able to learn about Apophis’ internal structure, density, porosity and composition, all of which are characteristics that we would need to first understand before considering how best to deflect a similar asteroid were one ever found to be on a collision course with our world.

Besides assisting in protecting Earth, learning about Apophis will give scientists further insights into how similar asteroids formed in the early solar system, and, in the process, how  planets (including Earth) formed out of the same material.

One way we already know Earth will affect Apophis is by changing its orbit. Currently, Apophis is categorized as an Aten-type asteroid, which is what we call the class of near-Earth objects that have a shorter orbit around the sun than Earth does. Apophis currently gets as far as 0.92 astronomical units (137.6 million km, or 85.5 million miles) from the sun. However, our planet will give Apophis a gravitational nudge that will enlarge its orbit to 1.1 astronomical units (164.6 million km, or 102 million miles), such that its orbital period becomes longer than Earth’s.

It will then be classed as an Apollo-type asteroid.

Ramses won’t be alone in tracking Apophis. NASA has repurposed their OSIRIS-REx mission, which returned a sample from another near-Earth asteroid, 101955 Bennu, in 2023. However, the spacecraft, renamed OSIRIS-APEX (Apophis Explorer), won’t arrive at the asteroid until April 23, 2029, ten days after the close encounter with Earth. OSIRIS-APEX will initially perform a flyby of Apophis at a distance of about 2,500 miles (4,000 km) from the object, then return in June that year to settle into orbit around Apophis for an 18-month mission.

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Furthermore, the European Space Agency still plans on launching its Hera spacecraft in October 2024 to follow-up on the DART mission to the double asteroid Didymos and Dimorphos. DART impacted the latter in a test of kinetic impactor capabilities for potentially changing a hazardous asteroid’s orbit around our planet. Hera will survey the binary asteroid system and observe the crater made by DART’s sacrifice to gain a better understanding of Dimorphos’ structure and composition post-impact, so that we can place the results in context.

The more near-Earth asteroids like Dimorphos and Apophis that we study, the greater that context becomes. Perhaps, one day, the understanding that we have gained from these missions will indeed save our planet.

 

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