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NASA's huge James Webb Space Telescope is one month from launch – Space.com

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The long-awaited launch of NASA’s next generational observatory, the James Webb Space Telescope, is just one month away.

The $9.8 billion Webb has overcome years of technical delays, funding issues and a pandemic to get to launch day in French Guiana, which is set for no earlier than Dec. 18.

Webb will have an ambitious science agenda stretching from studying small worlds in our solar system to surveying the outer reaches of the universe. “We’re going to look at everything there is in the universe that we can see,” Webb senior project scientist John Mather told reporters in a press conference on Wednesday (Nov. 18). 

Related: Building the James Webb Space Telescope (photos)

“We want to know, How did we get here?” added Mather, who works at NASA’s Goddard Space Flight Center in Maryland. “The Big Bang, How does that work? We’ll look, yes, and we have predictions. But we don’t honestly know [how].”

Serving as the successor to NASA’s venerable Hubble Space Telescope, Webb will journey to a distant destination about 1 million miles (1.6 million kilometers) from Earth known as a Lagrange point, a gravitationally stable spot between two celestial bodies. 

It will take Webb a month to get there after launch. Then, the observatory will endure a six-month commissioning period that will include a variety of key milestones, from the unfurling of its complex mirror to ensuring that all instruments are working correctly, before Webb opens its eyes.

“At six and a half meters [21 feet], the primary mirror was too big to fit in a rocket, so we designed it so that would it would unfold in space,” Lee Feinberg, Webb optical telescope element manager at Goddard, said during today’s briefing. “It doesn’t fold like a drop leaf table, so … we needed mirrors that had to be in segments.”

The mirrors, Feinberg added, initially act like 18 separate telescopes, and it will take algorithms several months to align them properly, to a precision of one-5,000th the diameter of a human hair. And that’s assuming the telescope unfurls them all properly, which (despite years of testing and modeling) NASA has said is one of the biggest technical obstacles Webb will face.

Webb investigators are coy about what the telescope will focus on first once it’s ready. But clues come from the list of “early release science programs” that will prioritize Webb’s core science in the study of planets, the solar system, galaxies, black holes, stellar physics and star populations. 

The first images will be in high demand, as mission scientists say the resolution will be 100 times better than that of Hubble and will reveal much more in infrared (or heat) wavelengths than the elder telescope can.

While the first targets have not yet been decided upon, Webb will soon be turning the clock back on observations of the universe, providing a look at the cosmos as it was just 100 million years after the Big Bang. Hubble has allowed scientists to peer back to 400 million years after the Big Bang, so Webb will fill a gap, Mather said.

Canada is providing a fine guidance sensor for pointing Webb, along with a spectrograph for examining exoplanets and galaxies. The nation receives a guaranteed 5% share of observing time for its contribution.

“One Canadian team will focus their studies on the atmospheres of exoplanets to determine their compositions and temperatures. Another Canadian team will study some of the first galaxies ever formed and galaxies gathered in dense neighborhoods called clusters,” said Sarah Gallagher, an advisor to the Canadian Space Agency president.

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What excites scientists most is the unpredictability of what Webb will reveal, and even a brief glance at Hubble history provides plenty of examples. At Hubble’s launch in April 1990, no one knew of the existence of dark energy, a fundamental influence in cosmic expansion. Exoplanets also hadn’t been confirmed yet, and yet today we know of thousands.

Hubble even found some surprises closer to home, such as when it helped NASA’s New Horizons Pluto probe steer properly around some new discoveries. “Hubble discovered two new moons of Pluto that could help the New Horizons probe [navigate] the physics of that world a few years ago,” said Klaus Pontoppidan, Webb project scientist at the Space Telescope Science Institute in Baltimore. “We think Webb will would be no different in that sense.”

Although launch day is always expected to induce butterflies, Greg Robinson, NASA’s Webb program director, said he is confident the team will pull through to make these science discoveries a reality. 

“We test as much as possible, as practical. We call it test as you fly,” he said. “We tested the same way it’s going to operate, based on a launch. And so we’ve done all of that, and I think we’re in pretty good shape.”

Follow Elizabeth Howell on Twitter @howellspace. Follow us on Twitter @Spacedotcom and on Facebook

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‘Big Sam’: Paleontologists unearth giant skull of Pachyrhinosaurus in Alberta

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It’s a dinosaur that roamed Alberta’s badlands more than 70 million years ago, sporting a big, bumpy, bony head the size of a baby elephant.

On Wednesday, paleontologists near Grande Prairie pulled its 272-kilogram skull from the ground.

They call it “Big Sam.”

The adult Pachyrhinosaurus is the second plant-eating dinosaur to be unearthed from a dense bonebed belonging to a herd that died together on the edge of a valley that now sits 450 kilometres northwest of Edmonton.

It didn’t die alone.

“We have hundreds of juvenile bones in the bonebed, so we know that there are many babies and some adults among all of the big adults,” Emily Bamforth, a paleontologist with the nearby Philip J. Currie Dinosaur Museum, said in an interview on the way to the dig site.

She described the horned Pachyrhinosaurus as “the smaller, older cousin of the triceratops.”

“This species of dinosaur is endemic to the Grand Prairie area, so it’s found here and nowhere else in the world. They are … kind of about the size of an Indian elephant and a rhino,” she added.

The head alone, she said, is about the size of a baby elephant.

The discovery was a long time coming.

The bonebed was first discovered by a high school teacher out for a walk about 50 years ago. It took the teacher a decade to get anyone from southern Alberta to come to take a look.

“At the time, sort of in the ’70s and ’80s, paleontology in northern Alberta was virtually unknown,” said Bamforth.

When paleontogists eventually got to the site, Bamforth said, they learned “it’s actually one of the densest dinosaur bonebeds in North America.”

“It contains about 100 to 300 bones per square metre,” she said.

Paleontologists have been at the site sporadically ever since, combing through bones belonging to turtles, dinosaurs and lizards. Sixteen years ago, they discovered a large skull of an approximately 30-year-old Pachyrhinosaurus, which is now at the museum.

About a year ago, they found the second adult: Big Sam.

Bamforth said both dinosaurs are believed to have been the elders in the herd.

“Their distinguishing feature is that, instead of having a horn on their nose like a triceratops, they had this big, bony bump called a boss. And they have big, bony bumps over their eyes as well,” she said.

“It makes them look a little strange. It’s the one dinosaur that if you find it, it’s the only possible thing it can be.”

The genders of the two adults are unknown.

Bamforth said the extraction was difficult because Big Sam was intertwined in a cluster of about 300 other bones.

The skull was found upside down, “as if the animal was lying on its back,” but was well preserved, she said.

She said the excavation process involved putting plaster on the skull and wooden planks around if for stability. From there, it was lifted out — very carefully — with a crane, and was to be shipped on a trolley to the museum for study.

“I have extracted skulls in the past. This is probably the biggest one I’ve ever done though,” said Bamforth.

“It’s pretty exciting.”

This report by The Canadian Press was first published Sept. 25, 2024.

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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