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Comet FIVE times the size of Jupiter is set to light up the night sky – Daily Mail

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Comet FIVE times the size of Jupiter is set to light up the night skies in April – and it could be brighter than Venus

  • The comet was discovered on December 28, 2019 in the area of Ursa Major
  • Its currently in Mars’ orbit but is on its way towards the Sun and getting brighter 
  • It was spotted by the Asteroid Terrestrial-impact Last Alert System (ATLAS)
  • If it doesn’t break up it will reach its closest point to the Sun by the end of May 

Atlas, a massive comet five times the size of Jupiter and about half the size of the Sun, will appear brighter than Venus from Earth by the end of April.

The exact size of the rocky icy core of the strange comet isn’t known but is likely only a few miles across – but it has a much larger atmosphere.

It’s currently close to Mars’ orbit but is increasing in speed as it makes its way towards the Sun and will make its closest approach to Earth in April.

When it gets towards the inner solar system it will become one of the brightest objects in the night sky and potentially the ‘comet of a generation’. 

This stunning image of comet C/2019 Y4 ATLAS was taken by Michael Jäger on March 18, 2020  and shows its bright green hue. The exact size of the rocky icy core of the strange comet isn't known but is likely only a few miles across - but it has a much larger atmosphere

This stunning image of comet C/2019 Y4 ATLAS was taken by Michael Jäger on March 18, 2020  and shows its bright green hue. The exact size of the rocky icy core of the strange comet isn’t known but is likely only a few miles across – but it has a much larger atmosphere

Since it was first discovered in December the gaseous envelope surrounding the comet has ballooned in diameter to a staggering 447,387 miles.    

In contrast the Sun has a diameter of 865,370 miles, Jupiter’s diameter is 86,881 miles and the Earth is just 7,917 miles.

It poses no danger to Earth as even at its closest point it will be more than 72 million miles away from our planet but will be very bright. 

Atlas has a tail about the same size as its atmosphere, according to Michael Jager from Austria – who captured images of the object.

According to a report by SpaceWeatherArchive it isn’t unusual for a comet to grow so large as they ‘spew prodigious amounts of gas and dust into space’.

‘Comet 17P/Holmes partially exploded and, for a while, had an atmosphere even larger than the sun,’ according to the astronomy website.

The green Atlas comet can be seen in the top left of this image captured from a remotely operated observatory in New Mexico on March 18. At lower right are M81 and M82, well-known as large, gravitationally interacting galaxies

The green Atlas comet can be seen in the top left of this image captured from a remotely operated observatory in New Mexico on March 18. At lower right are M81 and M82, well-known as large, gravitationally interacting galaxies

The green Atlas comet can be seen in the top left of this image captured from a remotely operated observatory in New Mexico on March 18. At lower right are M81 and M82, well-known as large, gravitationally interacting galaxies

‘The Great Comet of 1811 also had a sun-sized coma. Whether Comet ATLAS will eventually rival those behemoths of the past remains to be seen.’

It was discovered by the Asteroid Terrestrial-impact Last Alert system (ATLAS) in Hawaii and takes its name from the initials of the system. 

The last bright comet visible without a telescope in the northern hemisphere was Hale-Bopp in 1997 – making this a ‘rare event’ for astronomers. 

When it was discovered on December 28, 2019 it was faint and required a telescope, but as it comes closer it is getting brighter and can now be seen with binoculars. 

Its glow will be amplified by the Sun the closer it gets  and is already brighter than astronomers expected it to be at this point. 

‘It’s definitely a promising comet,’ Daniel Brown, an astronomy expert at Nottingham Trent University, told The Times.  

‘It’s pushing towards a level that by the end of April could look really, really stunning.’ 

Atlas is currently the largest ‘green object’ in the Solar System and its colour comes from diatomic carbon – a molecule commonly found in comets.

It emits a beautiful green glow when in gas form in the near-vacuum of space. 

It has seen a 4,000-fold increase in brightness since it was first discovered and could be visible to the naked eye by the end of April.

When it was originally spotted, the comet was in Ursa Major and appeared 398,000 times dimmer than stars that visible to the naked eye from Earth. 

It’s currently shining like an 8th magnitude star – that is invisible to the naked eye but easily spotted by garden telescopes.  

It is getting brighter rapidly as it approaches the Sun, astronomers say. 

‘Right now the comet is releasing huge amounts of its frozen volatiles (gases),’ says Karl Battams of the Naval Research Lab in Washington DC. 

‘That’s why it’s brightening so fast,’ he added.

“As they get closer to the sun they gas off this material and we get this amazing display, Brown told the Times. 

‘It’s already at a level of brightness that you can see through binoculars — this beautiful greenish halo around it and a bit of development of the tail.’

To survive long enough for it to be visible as a bright light in the sky it would need to be able to hold on to its ice. 

To do this it would have to have a large nucleus with a store of frozen gas – something astronomers can’t confirm at the moment.

If it doesn’t have a large nucleus it will likely ‘run out of gas’ leading to it crumbling and fading as it approaches the Sun, according to SpaceWeatherArchive.

Comet Hale bopp in the night sky was the large, bright comet visible to the naked eye in the northern hemisphere

Comet Hale bopp in the night sky was the large, bright comet visible to the naked eye in the northern hemisphere

Comet Hale bopp in the night sky was the large, bright comet visible to the naked eye in the northern hemisphere

Battams is not optimistic it will survive, he said it will likely break up before it reaches the brightest point from Earth.

‘My personal intuition is that Comet ATLAS is over-achieving, and I wouldn’t be surprised to see it start to fade rapidly and possibly even disintegrate before reaching the sun,’ he says. 

There is some speculation this could be related to the Great Comet of 1844 as it follows a similar trajectory and orbit.

Its trajectory would require a 6,000 year orbit around the Sun that would take it beyond the outer edges of the solar system – about 57 billion miles from the Sun. 

Astronomers predict Atlas and the Great Comet both broke off from a much larger comet born in the early days of the solar system.  

If it does last until it gets near the Sun it may be a one time shot as it could be expelled from the solar system completely after slingshotting around the Sun.

In the meantime, when it gets dark it will be visible halfway up in the north-northwest sky and potentially visible with the naked eye from April. 

‘It’s going to be fun the next few weeks watching Comet ATLAS develop (and provide a nice distraction from the current state of the world), Carl Hergenrother, a comet observer based in Arizona, wrote. ‘Here’s to good health and clear skies!’ 

WHAT ARE THE DIFFERENT TYPES OF SPACE ROCKS?

An asteroid is a large chunk of rock left over from collisions or the early solar system. Most are located between Mars and Jupiter in the Main Belt.

A comet is a rock covered in ice, methane and other compounds. Their orbits take them much further out of the solar system.

A meteor is what astronomers call a flash of light in the atmosphere when debris burns up.

This debris itself is known as a meteoroid. Most are so small they are vapourised in the atmosphere.

If any of this meteoroid makes it to Earth, it is called a meteorite.

Meteors, meteoroids and meteorites normally originate from asteroids and comets.

For example, if Earth passes through the tail of a comet, much of the debris burns up in the atmosphere, forming a meteor shower.

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Here’s how Helene and other storms dumped a whopping 40 trillion gallons of rain on the South

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More than 40 trillion gallons of rain drenched the Southeast United States in the last week from Hurricane Helene and a run-of-the-mill rainstorm that sloshed in ahead of it — an unheard of amount of water that has stunned experts.

That’s enough to fill the Dallas Cowboys’ stadium 51,000 times, or Lake Tahoe just once. If it was concentrated just on the state of North Carolina that much water would be 3.5 feet deep (more than 1 meter). It’s enough to fill more than 60 million Olympic-size swimming pools.

“That’s an astronomical amount of precipitation,” said Ed Clark, head of the National Oceanic and Atmospheric Administration’s National Water Center in Tuscaloosa, Alabama. “I have not seen something in my 25 years of working at the weather service that is this geographically large of an extent and the sheer volume of water that fell from the sky.”

The flood damage from the rain is apocalyptic, meteorologists said. More than 100 people are dead, according to officials.

Private meteorologist Ryan Maue, a former NOAA chief scientist, calculated the amount of rain, using precipitation measurements made in 2.5-mile-by-2.5 mile grids as measured by satellites and ground observations. He came up with 40 trillion gallons through Sunday for the eastern United States, with 20 trillion gallons of that hitting just Georgia, Tennessee, the Carolinas and Florida from Hurricane Helene.

Clark did the calculations independently and said the 40 trillion gallon figure (151 trillion liters) is about right and, if anything, conservative. Maue said maybe 1 to 2 trillion more gallons of rain had fallen, much if it in Virginia, since his calculations.

Clark, who spends much of his work on issues of shrinking western water supplies, said to put the amount of rain in perspective, it’s more than twice the combined amount of water stored by two key Colorado River basin reservoirs: Lake Powell and Lake Mead.

Several meteorologists said this was a combination of two, maybe three storm systems. Before Helene struck, rain had fallen heavily for days because a low pressure system had “cut off” from the jet stream — which moves weather systems along west to east — and stalled over the Southeast. That funneled plenty of warm water from the Gulf of Mexico. And a storm that fell just short of named status parked along North Carolina’s Atlantic coast, dumping as much as 20 inches of rain, said North Carolina state climatologist Kathie Dello.

Then add Helene, one of the largest storms in the last couple decades and one that held plenty of rain because it was young and moved fast before it hit the Appalachians, said University of Albany hurricane expert Kristen Corbosiero.

“It was not just a perfect storm, but it was a combination of multiple storms that that led to the enormous amount of rain,” Maue said. “That collected at high elevation, we’re talking 3,000 to 6000 feet. And when you drop trillions of gallons on a mountain, that has to go down.”

The fact that these storms hit the mountains made everything worse, and not just because of runoff. The interaction between the mountains and the storm systems wrings more moisture out of the air, Clark, Maue and Corbosiero said.

North Carolina weather officials said their top measurement total was 31.33 inches in the tiny town of Busick. Mount Mitchell also got more than 2 feet of rainfall.

Before 2017’s Hurricane Harvey, “I said to our colleagues, you know, I never thought in my career that we would measure rainfall in feet,” Clark said. “And after Harvey, Florence, the more isolated events in eastern Kentucky, portions of South Dakota. We’re seeing events year in and year out where we are measuring rainfall in feet.”

Storms are getting wetter as the climate change s, said Corbosiero and Dello. A basic law of physics says the air holds nearly 4% more moisture for every degree Fahrenheit warmer (7% for every degree Celsius) and the world has warmed more than 2 degrees (1.2 degrees Celsius) since pre-industrial times.

Corbosiero said meteorologists are vigorously debating how much of Helene is due to worsening climate change and how much is random.

For Dello, the “fingerprints of climate change” were clear.

“We’ve seen tropical storm impacts in western North Carolina. But these storms are wetter and these storms are warmer. And there would have been a time when a tropical storm would have been heading toward North Carolina and would have caused some rain and some damage, but not apocalyptic destruction. ”

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Follow AP’s climate coverage at https://apnews.com/hub/climate

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Follow Seth Borenstein on Twitter at @borenbears

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Associated Press climate and environmental coverage receives support from several private foundations. See more about AP’s climate initiative here. The AP is solely responsible for all content.

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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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