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Sci-Tech

    • This Jupiter-like planet may have eaten its neighbour at some point: Canadian study

    The ultra-hot giant exoplanet WASP-76 b, studied here, is an extremely hot world orbiting very close to its giant star. (NOIRLab) The ultra-hot giant exoplanet WASP-76 b, studied here, is an extremely hot world orbiting very close to its giant star. (NOIRLab)
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    Scientists have long been able to measure the chemicals in our own atmosphere with a huge amount of detail 鈥 but now, with the power of a very good telescope, astronomers are able to obtain those same details for planets hundreds of lightyears away.

    A new study from Canadian and international scientists has laid out in detail what the chemical composition is for the atmosphere of an enormous planet hurtling through space more than 634 light years away from us.

    The planet in question, called WASP-76 b, is a gas giant closely orbiting a massive star in the constellation of Pisces. According to the new study, published Wednesday in , it orbits its star so closely that the planet itself can get up to 2000 degrees Celsius.

    鈥淭his is the first study to measure the abundances of chemical elements such as nickel, magnesium, and chromium at high precision in any giant planet,鈥 Mohamad Ali-Dib, NYU Abu Dhabi Research Scientist from the Centre for Astro, Particle, and Planetary Physics and one of the authors of the study,

    WASP-76 b isn鈥檛 a newly discovered exoplanet 鈥 meaning a planet which orbits outside of our solar system. It was first observed in 2013. However, this study provides a more in-depth look at just what makes up this interstellar curiosity.

    It鈥檚 not just a fun fact to know the chemicals that make up a planets鈥 atmosphere 鈥 they tell a story about the planet鈥檚 formation and major events in its past.

    In this case, researchers found chemicals in WASP-76 b鈥檚 atmosphere that are known to be rock-forming elements, and are not usually found in this quantity in gas giants like Jupiter and Saturn. The abundance of these rock-forming elements led researchers to hypothesize that WASP-76 b, which orbits its star on its lonesome, may once have had a rockier neighbour which orbited with it.

    鈥淭he deviations of (the chemical) values from what is expected led us to postulate that WASP-76 b might have swallowed another much smaller planet, one with the same chemical composition of Mercury,鈥 Ali-Dib said.

    The study details the abundances of 11 chemical elements in the atmosphere in total.

    Researchers also observed that the chemicals were constantly shifting in WASP-76 b鈥檚 upper atmosphere as the temperature changed.

    As the planet revolves and moves around its star, different elements experience the temperature shifts that come with night and day 鈥 being turned away from the star and facing it. They heat or cool depending on whether or not they鈥檙e facing the star, meaning a constant shift through the cycle of condensation: elements forming into a gas and moving to the top layer of the atmosphere, then turning liquid and sinking deeper into the planet鈥檚 layers as they cooled.

    This shift from gas to liquid can be very abrupt for some elements depending on their condensation temperature, researchers noted.

    One of the exciting things about this research, which was done by an international team led by the Universit茅 de Montr茅al, is that ultra-hot gas giants such as WASP-76 b allow scientists to study elements within gas giants that aren鈥檛 close enough to the surface in the gas giants in our solar system to study.

    WASP-76 b is around 12 times closer to its star than Mercury is to our sun. It鈥檚 so hot on WASP-76 b that elements which could form into rocks are present only in gaseous form, but they鈥檙e in the upper atmosphere, where we can study them. The same compounds may be found in a colder gas giant like Jupiter, but if they are, they鈥檙e in the lower atmosphere, closer to the centre of the planet, where astronomers aren鈥檛 yet able to detect them.

    Researchers used data recorded by the MAROON-X instrument on the Gemini-North Telescope, which was designed to discover exoplanets and collect detailed information on their composition by analyzing light.

    CTVNews.ca 星空传媒

    The province's public security minister said he was "shocked" Thursday amid reports that a body believed to be that of a 14-year-old boy was found this week near a Hells Angels hideout near Quebec City.

    Since she was a young girl growing up in Vancouver, Ginny Lam says her mom Yat Hei Law made it very clear she favoured her son William, because he was her male heir.

    An Ontario man says it is 'unfair' to pay a $1,500 insurance surcharge because his four-year-old SUV is at a higher risk of being stolen.

    The Montreal couple from Mexico and their three children facing deportation have received a temporary residence permit.

    Canada

    • Since she was a young girl growing up in Vancouver, Ginny Lam says her mom Yat Hei Law made it very clear she favoured her son William, because he was her male heir.

    • The Montreal couple from Mexico and their three children facing deportation have received a temporary residence permit.

    • In the middle of the small crowd 鈥 near the tents, the lineup of kids awaiting face painting, the snack table 鈥 stood a jubilant Chiara Padovani. 'When I say 'tenant, you say 'power,'' she commanded to several dozen tenants, who chanted back with gusto. What looked like a summer block party in front of two north-end Toronto apartment buildings last month was a celebration of what renters who withheld payments for months called a 'huge victory.'

    • For the last seven-and-half months, Toronto resident Heather McArthur has been living out what she describes as her 'worst nightmare.' On Feb. 7, her then three-year-old son Jacob along with his father Loc Phu 'Jay' Le departed for what was supposed to be a week-long visit to Vietnam to celebrate the Lunar New Year with family, McArthur says.

    • The head of a committee monitoring the government's response to the inquiry into the 2020 Nova Scotia mass killing says she's pleased with progress made so far.

    • The University of Ottawa's special advisor on antisemitism says he has resigned following posts he made on social media celebrating the pager explosions in Lebanon this week.

    World

    Politics

    Health

    Sci-Tech

    Entertainment

    • Lawyers representing the producers of 'Russians at War' say they may pursue legal action against Ontario's public broadcaster for pulling support for the controversial documentary amid outcry from the Ukrainian community and some Canadian politicians.

    • Viewers of Jeopardy got a chance to test their knowledge of trivia about B.C.'s biggest city Wednesday night.

    Business

    Lifestyle

    • They say a dog is a man鈥檚 best friend. In the case of Darren Cropper, from Bonfield, Ont., his three-year-old Siberian husky and golden retriever mix named Bear literally saved his life.

    Sports

    • Vancouver Canucks goalie Thatcher Demko says he's been working his way back from a rare lower-body muscle injury since being sidelined in last season's playoffs.

    • Toronto Blue Jays shortstop Bo Bichette returned to the 10-day injured list Thursday due to a right middle finger fracture.

    Autos

    • An Ontario man says it is 'unfair' to pay a $1,500 insurance surcharge because his four-year-old SUV is at a higher risk of being stolen.

    • Video of a brazen daylight auto theft which shows a suspect running over a victim in a stolen luxury SUV has been released by police west of Toronto.

    • The plant was expected to produce batteries for a million electric vehicles a year. Once up and running, it was supposed to create hundreds of permanent jobs in a small southeastern Ontario municipality. But two years later, spending on the construction of the Umicore plant has been delayed in what the company calls a "significant worsening of the EV market context."

    Local Spotlight

    They say a dog is a man鈥檚 best friend. In the case of Darren Cropper, from Bonfield, Ont., his three-year-old Siberian husky and golden retriever mix named Bear literally saved his life.

    A growing group of brides and wedding photographers from across the province say they have been taken for tens of thousands of dollars by a Barrie, Ont. wedding photographer.

    Paleontologists from the Royal B.C. Museum have uncovered "a trove of extraordinary fossils" high in the mountains of northern B.C., the museum announced Thursday.

    The search for a missing ancient 28-year-old chocolate donkey ended with a tragic discovery Wednesday.

    The Royal Canadian Mounted Police is celebrating an important milestone in the organization's history: 50 years since the first women joined the force.

    It's been a whirlwind of joyful events for a northern Ontario couple who just welcomed a baby into their family and won the $70 million Lotto Max jackpot last month.

    A Good Samaritan in New Brunswick has replaced a man's stolen bottle cart so he can continue to collect cans and bottles in his Moncton neighbourhood.

    David Krumholtz, known for roles like Bernard the Elf in The Santa Clause and physicist Isidor Rabi in Oppenheimer, has spent the latter part of his summer filming horror flick Altar in Winnipeg. He says Winnipeg is the most movie-savvy town he's ever been in.

    Edmontonians can count themselves lucky to ever see one tiger salamander, let alone the thousands one local woman says recently descended on her childhood home.

    • B.C.'s police watchdog is investigating the death of a woman who was shot by the RCMP after allegedly barricading herself in a room with a toddler early Thursday morning.

    • Since she was a young girl growing up in Vancouver, Ginny Lam says her mom Yat Hei Law made it very clear she favoured her son William, because he was her male heir.

    • The 'Namgis First Nation says a fish farm it owns near Port McNeill shows the potential of land-based aquaculture in B.C.

    • For the last seven-and-half months, Toronto resident Heather McArthur has been living out what she describes as her 'worst nightmare.' On Feb. 7, her then three-year-old son Jacob along with his father Loc Phu 'Jay' Le departed for what was supposed to be a week-long visit to Vietnam to celebrate the Lunar New Year with family, McArthur says.

    • An Ontario man says it is 'unfair' to pay a $1,500 insurance surcharge because his four-year-old SUV is at a higher risk of being stolen.

    • In the middle of the small crowd 鈥 near the tents, the lineup of kids awaiting face painting, the snack table 鈥 stood a jubilant Chiara Padovani. 'When I say 'tenant, you say 'power,'' she commanded to several dozen tenants, who chanted back with gusto. What looked like a summer block party in front of two north-end Toronto apartment buildings last month was a celebration of what renters who withheld payments for months called a 'huge victory.'

    • Defence counsel for accused murderer John-Christopher Arrizza argues he was in an 鈥渁ltered state of mind鈥 due to days of drug and alcohol use, sleep deprivation and not eating, when he fatally stabbed a man at a Banff nightclub in 2022.

    • The Parole Board of Canada says a man who assaulted a young pregnant woman and left her for dead remains too dangerous to be released into the community.

    • Five bison are dead at Elk Island National Park east of Edmonton following an early Thursday morning collision.

    • BREAKING NEWS

      BREAKING NEWS

      A man has been taken to hospital in life-threatening condition following a stabbing incident that happened on Baseline Road in the early hours of Friday morning, according to the Ottawa Paramedic Service.

    • Police say a man who was taken to hospital in critical condition after being shot Thursday night has died.

    • Higher than average temperatures are in the forecast for Ottawa this Friday.

    • The Montreal couple from Mexico and their three children facing deportation have received a temporary residence permit.

    • The province's public security minister said he was "shocked" Thursday amid reports that a body believed to be that of a 14-year-old boy was found this week near a Hells Angels hideout near Quebec City.

    • Premier Fran莽ois Legault's approval rating continued to rise this summer, according to the Angus Reid Institute. After reaching a low at the end of 2023, his support rose by three percentage points over the summer to 39 per cent.

    • Five bison are dead at Elk Island National Park east of Edmonton following an early Thursday morning collision.

    • A mother and daughter say they woke up to flames encroaching on their third-floor apartment near Commonwealth Stadium early Friday morning.

    • An Edmonton man who is charged with sexually assaulting a teen boy is a member of the Alberta sheriffs, CTV News Edmonton has confirmed.

    • Gas prices increased in all three Maritime provinces for the first time in more than a month.

    • A Nova Scotia woman has applied for a medically assisted death, saying after years of battling to receive out-of-country surgery for an illness that causes "indescribable" pain, she struggles to maintain the will to live.

    • A section of Herring Cove Road in the Spryfield area of Halifax is closed to traffic in both directions following a single-vehicle collision Friday morning.

    • Manitobans are continuing to mop up after a deluge of rain hit southern Manitoba earlier in the week.

    • Shamattawa RCMP are searching for a missing six-year-old boy who hasn鈥檛 been seen since Wednesday morning.

    • A Winnipeg pet rescue is putting out a warning to dog owners across the city about a possible parvovirus in the province.

    • A social media post of purple apples 鈥済rowing鈥 in Saskatchewan has sparked a lot of attention. However, garden experts say there's no such thing.

    • A case involving stolen funds from a Saskatchewan business being used to purchase cryptocurrency will be heading back to the courts, thanks to a new decision by Saskatchewan's Court of Appeal.

    • Amber and Adam Brueckner have a pool-shaped hole in their backyard 鈥 and their wallets.

    • New details have been shared about a missing family that was last seen on Sept. 1 in Kitchener, Ont.

    • Police are trying to identify a man who approached a woman and child in Wellesley.

    • A gym teacher at a private Christian school in Saskatoon has been charged. Terra MacEwan, 44, is charged with assault with a weapon. A Saskatoon mother who spoke with CTV News says her autistic son was MacEwan's victim.

    • Thomas Hamp says he believed secret police were out to kidnap, torture, and kill him when he fatally stabbed his girlfriend Emily Sanche in February of 2022.

    • A social media post of purple apples 鈥済rowing鈥 in Saskatchewan has sparked a lot of attention. However, garden experts say there's no such thing.

    • As northern Ontario gets ready to welcome autumn this weekend, it鈥檚 still feeling a lot like summer as provincial forest fire crews continue to battle blazes.

    • An Ontario man says it is 'unfair' to pay a $1,500 insurance surcharge because his four-year-old SUV is at a higher risk of being stolen.

    • James Bay Ontario Provincial Police have charged four commercial vehicle drivers with impaired, including one who was hauling 36,000 kilograms of ammonia hydrate.

    • Police say just before 7:00 p.m. four teens entered a business in the 1000 block of Adelaide Street North.

    • Police were focusing their attention on the northeast corner of Richmond and Horton, with members of the emergency response unit taking up positions at the scene.

    • Shedden, southwest of London, hasn鈥檛 changed much in decades 鈥 but word is spreading that hundreds of new residents could soon be calling the town home.

    • Two men from Barrie have been charged after a deadly shooting at a park in Keswick on Wednesday.

    • A growing group of brides and wedding photographers from across the province say they have been taken for tens of thousands of dollars by a Barrie, Ont. wedding photographer.

    • Ontario Provincial Police executed a search warrant in Walkerton.

    • On Thursday, just after 9:30 a.m., a man was found and taken to police headquarters, where he was released with conditions and a future court date.

    • Standing up, speaking out, and showing solidarity 鈥 survivors and supporters gathered in the core to take back the night in Windsor. The city is just one of a growing list of communities that have declared intimate partner violence (IPV) an epidemic.

    • The Windsor Police Service (WPS) has seized over $56,000 in drugs and have arrested one suspect.

    • In a rare move, the Greater Victoria School District Board of Education has been slapped with a ministerial order from the province requiring it to update a student safety plan 鈥 drawing concern around political posturing leading up to an election.

    • The Union of B.C. Municipalities is asking the provincial government to make transit free for teenagers.

    • To appreciate why Mimi Vandermolen is so pleased to notice one particular vehicle she鈥檚 walking past, you need to know that seeing this many cars in one place would have been unimaginable when she was growing-up in the post-war Netherlands.

    • A pair of runaway pigs are in the custody of an animal sanctuary in the Okanagan after evading police and volunteers for hours earlier this week.

    • The Red Bridge, a historic landmark in Kamloops, B.C., was completely destroyed by fire early Thursday morning.

    • Animal protection officers in British Columbia have rescued three pit bulls 鈥 including one that gave birth to 10 puppies 鈥 from a rat-infested home in Kelowna.

    • A Vulcan, Alta., man has been charged with a Lethbridge woman's murder after her body was found in the Oyen area.

    • A Lethbridge couple got a good reminder as to why you should keep your vehicle doors locked at all times.

    • Lethbridge residents who live near the police range can expect to hear plenty of shots fired Wednesday and Thursday.

    • A new community health profile in the Algoma District shows the area is significantly below provincial averages in a number of health metrics.

    • North Bay Police Service says one person has died following an industrial accident at the Ontario Northland Transportation Commission Rail Yard on Tuesday.

    • Three northern Ontario residents are charged with drug trafficking after the vehicle they were in got stuck along a bush road off Highway 17 on Monday.

    N.L.

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