Fast Radio Bursts
Over the last five years, researchers have been closely following a type of strange radio signal emanating from deep space.
Astronomers refer to these puzzling signals as “fast radio bursts,” or FRBs. They’re pulses of radio waves that only last fractions of a second — and to this day, their origins remain a mystery.
Since the discovery of FRBs, researchers have found that one particular signal, dubbed FRB 121102, was repeating like clockwork, appearing for 90 days before going dormant for the following 67 days.
Astronomers found this roughly 157 day cycle to be repeating over and over again. And that gave them the ability to predict when it would be coming back.
I’ll Be Back
And just as predicted, a team of astronomers led by Marilyn Cruces of the Max Planck Institute for Radio Astronomy detected the FRB 121102 signal again, as detailed in a preprint uploaded to the preprint archive arXiv earlier this month.
“We predict the source to be active from 2020-07-09 to 2020-10-14 and, posteriorly, from 2020-12-17 to 2021-03-24,” reads the preprint.
The mysterious signal has captured the attention of multiple teams of scientists, as Science Alert reports. A team in China also monitored it using the 500 meter Aperture Spherical radio Telescope at the National Astronomy Observatory of China.
READ MORE: A mysterious radio burst from space is back, right on schedule [CNET]
COVID-19 Today: School, child care cases for Newmarket, York Region, and Ontario – NewmarketToday.ca
Newmarket (reported Friday, Sept. 25, at 5 p.m.)
- 0 school-related cases
- 0 schools closed
Licensed child care facilities
- 0 child care centre cases
- 0 child care centres closed
York Region (reported Frisday, Sept. 25, at 5 p.m.)
- 1 school outbreaks*
- Blue Willow, Woodbridge (1 student, 1 staff)
- 0 schools closed
- 12 confirmed cases
- 7 students
- 5 staff/visitors
- 8 (-2) schools under surveillance**:
- Carrville Mills (1 staff), in Thornhill
- Little Rouge (1 student), in Markham;
- St. Michael the Archangel (1 staff); Tommy Douglas Secondary (1 student), Our Lady of Fatima (1 staff), in Woodbridge;
- Maple High (1 student), Dr. Roberta Bondar (1 student) in Maple
- Kleinburg P.S. (1 student) in Kleinburg
- Surveillance closed for Sir Wilfrid Laurier (1 staff) and J. Addison (1 student), in Markham
*An outbreak is declared when 2 or more cases are confirmed within a 14-day period, with at least one case acquired in the school
**Schools with a laboratory-confirmed case that was not transmitted within the school
Licensed child care facilities
- 4 child care centre outbreaks*
- 2 active outbreaks
- Childventures Early Learning Academy, Aurora (1 staff)
- Montessori School House, Maple (1 child, 1 staff)
- 1 case child
- 4 cases staff/visitors
*An outbreak is declared with one or more confirmed case in children or staff
Ontario (reported Thursday, Sept. 24 at 10:30 a.m.):
Cases in schools
- 238 (+29) school-related cases
- 110 (+10) students; 50 (+10) staff
- 78 (+9) individuals not identified
- 198 (+20) of 4,828 schools with a case (4.10%)
- 2 schools closed
- Fellowes High School, Pembroke (1 student, 4 staff cases)
- Monsignor Paul Baxter Catholic School, Ottawa (2 students, 2 staff)
Cases in child care centres and homes
- 109 (+2) cases at child care centres and homes
- 54 (+2) children
- 55 staff
- 36 (-1) of 5,111 child care centres with current cases (0.70%)
- 10 (-1) child care centres currently closed (.20%)
York Region Public Health reminds parents and guardians to check your child daily for symptoms of COVID-19. For more information and resources, including how to protect yourself and others, visit york.ca/SafeAtSchool
You can download Canada’s COVID Alert in Apple and Google app stores or visit ontario.ca/covidalert
A dazzling full 'harvest moon' is set to illuminate Vancouver skies next week – Vancouver Is Awesome
While the weekend forecast calls for rain, Vancouver skies are expected to clear next week, which is just in time for the glorious full Harvest moon.
Earlier this month, locals were treated to a full corn moon. Last year, September’s full moon was a full ‘harvest moon,’ which takes place in two years out of three. However, since October’s full moon falls closest to the fall equinox this year, it will carry the harvest title.
According to the Old Farmer’s Almanac, “this full Moon name is attributed to Native Americans because it marked the time when corn was supposed to be harvested.”
The Harvest Moon gets was given its name because farmers needed its silvery light to harvest crops. It has since inspired a rather dreamy, beautiful song by Canadian icon Neil Young, too.
The Old Farmer’s Almanac also notes that Native peoples would give distinctive names to each reoccurring full moon to mark the change of seasons. As such, many of these names arose when Native Americans first interacted with colonialists.
The October moon will be at its fullest in Vancouver on Thursday, Oct. 1 at 2:05 p.m.
Stargazers should opt to travel as far away from city lights as possible in order to avoid light pollution that will obscure the clarity of heavenly bodies. While this works best in more remote places, anywhere that has a higher elevation will also provide more ideal viewing conditions.
Dozens of McGill students living in student neighbourhood test positive for COVID-19 – Yahoo News Canada
Dozens of students at McGill University are testing positive for COVID-19 according to their peers, but the university is not counting most of those cases in its official tally, because they happened off-campus.
Jacob Rothery, a student living in the so-called McGill ghetto in Montreal’s Milton Park neighbourhood next to the university, tested positive for COVID-19 this week. So did his three roommates.
Rothery says he knows of at least 20 other students who tested positive, and suspects more numbers are going to come from the popular and crowded student neighbourhood.
“There were a decent amount of students going to student bars,” he said. “And then on top of that, you don’t necessarily know who the people that you think you’re in your bubble with are seeing, so they could be seeing a bunch of other people, who are putting themselves in riskier situations.”
Rothery says he and his friends did not violate public health guidelines, but that didn’t stop an outbreak in his group of friends.
“People may have had it, but had no symptoms. So they had no reason to get tested. And then you have gatherings that aren’t that big, maybe fifteen people or 10, but those 10 people see other people and their bubbles are a lot bigger than they think they are,” he said.
Thom Haghighat is another McGill student who is self-isolating, after he and his roommate tested positive for COVID-19.
He figures he caught the virus from one of the students returning to the “ghetto” from Toronto or elsewhere in Montreal.
Haghighat says he also knows of at least 25 students living in the area who tested positive, with a dozen in his immediate group of friends.
Like Rothery, Haghighat says he and his friends were limiting personal gatherings and keeping a small circle of people to interact with.
Despite this, he said, he still saw cases rise among his peers in the past week. He believes false negatives are part of the problem.
“The first time we got tested, we tested negative. We still self-isolated, but I know a lot of people who would think they were in the clear to go see other people,” he said, noting that he knew others who also got false negatives.
Rothery had also received a false negative test result earlier this week, before testing positive.
<p class="canvas-atom canvas-text Mb(1.0em) Mb(0)–sm Mt(0.8em)–sm" type="text" content="Only "on-campus" numbers” data-reactid=”45″>Only “on-campus” numbers
Despite these anecdotal reports, McGill University has officially recorded just six COVID-19 cases this week on campus, and says there is no evidence of community transmission on its campuses.
McGill’s main campus is downtown. The Macdonald campus, which houses agricultural and nutrition programs among others, is in Sainte-Anne-de-Bellevue in the West Island.
A spokesperson for the university said the number includes staff and students who were present on campus in the week preceding their positive COVID test.
Most classes at McGill have moved online, which means far fewer people are frequenting the campus.
Some students say the university should include the numbers of students who test positive off-campus, as well.
“It’s important for them to at least take responsibility for the things that are going on in their student body, whether or not they’re technically on campus, because I think that distinction is pretty useless,” said Rothery.
For its part, McGill says it is working with public health authorities on strict protocols to limit the spread.
Amy Coney Barrett’s expected nomination to Supreme Court is a perfect reflection of the divisions in U.S. politics – The Globe and Mail
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