Western University to host viewing party for once in a lifetime phenomenon

It may be green in appearance but it isn’t envy that gives this comet its unique colour.
“Comets are usually white or blue. This one has a different colour,” says Paul Wiegert, professor of astronomy at Western University. “It's caused by a molecule which doesn't exist here really on earth. It's called dicarbon, but it can exist out in space. And some comets produce a lot of dicarbon and have this green colour and others don't.”
This comet was discovered in March 2022, and while it orbits the sun like earth, it takes thousands of years to make a single pass.
Comets like this may have been responsible for delivering water to early earth, and contain important clues about the chemistry of star and planet birth, Wiegert explains.
“We sometimes say that it's like a chocolate cake. There's a lot of ingredients that went into this chocolate cake. But the earth doesn't look very much like its ingredients anymore in the same way that a chocolate cake doesn't look like eggs or flour or sugar or anything like that.”
While the comet will be visible with the use of binoculars or small telescopes next week, Western’s Hume Croyn Memorial Observatory is holding a free open house Saturday, Jan. 28 that will reveal a much better image as long as the clouds stay away.
“If the weather does cooperate and we don't have too many clouds, we'll be pointing some telescopes at this comet. Fingers crossed that we get good weather,” says Wiegert
The comet will be most visible on Feb. 1, but will still be visible in the days before and after that point if clouds are persistent.
CTVNews.ca Top Stories
W5 investigates | Priest, neighbours issue plea for help for struggling international students in Cape Breton
Cape Breton University has more than doubled in size by enrolling thousands of international students, and critics say the campus and community weren't ready. Watch the documentary 'Cash Cow' on CTV W5, Saturday at 7 p.m.

A glass of wine or beer per day is fine for your health: new study
A new Canadian study of 4.8 million people says a daily alcoholic drink isn't likely to send anyone to an early grave, nor will it offer any of the health benefits touted by previous studies, even if it is organic red wine.
Federal minimum wage, taxes on alcohol: Here's what's changing in Canada April 1
The federal minimum wage is increasing from $15.55 per hour to $16.65, and taxes are going up on gas and alcohol nationwide starting April 1.
W5 profile | The Canadian who creates the real, but fake, sounds in Hollywood blockbuster films
W5 profiles the man who makes the sounds for breaking bones and squealing tires in Hollywood’s biggest films; and he does it from a small town in Ontario. Watch 'Sound Farms' at 7 p.m. on CTV W5.
Recent immigrants more likely to have confidence in Parliament, Canadian media: Statistics Canada
Statistics Canada has released its new report about the Canadians level of confidence in Canada’s institutions, finding that recent immigrants are more likely to express confidence in the media and parliament.
Afghan women cyclists who escaped the Taliban are chasing their dreams in Canada
After the Taliban returned to power in Afghanistan and banned sports for female athletes, Afghan women cyclists are chasing their dreams in Canada.
Unable to leave Syria, mothers of Canadian children forfeit repatriation to keep their families together
In a choice forced upon them by the Canadian government, four mothers have made the agonizing decision to forfeit an opportunity to repatriate their children from open air prisons in northeast Syria.
MP Han Dong issues libel notice to Global News over China interference reporting
Lawyers representing Toronto MP Han Dong served Global News with a libel notice on Friday over reports that alleged he spoke to a Chinese diplomat in February 2021 about delaying the release of the two Michaels, and that he was a 'witting affiliate' of Chinese interference networks – allegations that Dong denies.
Here's what to expect from the Canadian cottage market this year
A recent report from Royal LePage is predicting a drop in prices for Canadian cabins and cottages this year as demand softens from economic uncertainty and low housing stock.