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Astronomers Catch Radio Signals Emanating from the Milky Way; Where Is the Source Coming From? – Science Times

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(Photo : Photo by Štefan Štefančík on Unsplash) Scientists have detected radio signals coming from outer space.

Astronomers have detected a radio signal coming from the Milky Way. The signal obtained is called a fast radio burst, which lasts milliseconds, and comes from deep within outer space.

Because the radio signal was so brief, it was only identified after being recorded in the satellite data. Scientists are currently still trying to figure out where such signals came from. 

This isn’t the first time satellites have picked out radio signals from space. The first FRBs were identified over a decade ago. Theories of their sources include cataclysmic events, particularly when two neutron stars collide with each other or a collapsing black hole.

However, these assumptions were dismissed when another FRB was detected. According to scientists, a black hole can only collapse once, which suggests that the source could be something else.

An international group of scientists has come together over the years to solve the mystery of the FRBs. As the years went by, more instances of FRBs occurred. Earlier this year, a group of experts traced an FRB back to a strange V-shaped star-forming region in a vast spiral galaxy half a billion light-years away.

The latest detection was disclosed in The Astronomer’s Telegram, saying that bright radio burst came from the active magnetar known as SGR 1935+2154. This is a type of neutron star, the collapsed core of a massive star that is thought to have a compelling magnetic field.

The information was gathered on Tuesday. Scientists will first need to study the burst and validate their findings. If proven correct, they say it would be the first FRB ever detected originating from our own galaxy.

So far, other researchers studying FRBs have welcomed the findings. Jason W. T. Hessels, a Senior Scientist at ASTRON, Netherlands Institute for Radio Astronomy, described the discovery as a “breakthrough’ for the field. 

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Hessels said that the possibility of bursting magnetars being the source of some FRBs is vigorously being considered. However, he says that a key question still remains. Do all FRBs come from bursting magnetars, or do they come from a variety of varied origins? 

Hessels also mentioned how it was interesting that an X-ray burst was detected at the same location. He says it helps in showing how the burst released much energy. 

According to him, it helps scientists understand what actually happened to the neutron star and its magnetosphere.

Andrew Siemion, Director of the Berkeley SETI Research Center and Principal Investigator of Breakthrough Listen, described the results as “very exciting.” He said one of the crucial questions about FRBs is what is generating them. He said if the results are proven to be accurate, it would be “strong evidence” that some FRBs arise from magnetars.

Siemion said that the link between magnetars and FRB occurrence would still present some critical questions. Some of these would question why only certain magnetars produce FRBs, and what gives rise to the repetition seen in specific FRB sources. Another question left hanging is if there is a possibility of a second or third source of single-pulse FRBs independent of the magnetar model.

Providing answers to such questions will necessitate more observations, but knowing that sources like SGR 1935+2134 can produce bright radio pulses provides a supportive hint as to where scientists ought to be looking, he says.

Also Read: Lunar Meteorites For Sale: Fifth Largest Moon Rock Found on Earth Up For Grabs For $2.5 Million

©2017 ScienceTimes.com All rights reserved. Do not reproduce without permission. The window to the world of science times.

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The body of a Ugandan Olympic athlete who was set on fire by her partner is received by family

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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.

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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.”

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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.

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