Air quality advisories issued in 5 provinces, 1 territory
Air quality advisories are in effect across Western Canada as smoky conditions plague some areas, according to the latest forecasts. Here's where.
The Hubble Space Telescope has been hit with computer trouble, with all astronomical viewing halted, NASA said Wednesday.
The orbiting observatory has been idle since Sunday when a 1980s-era computer that controls the science instruments shut down, possibly because of a bad memory board.
Flight controllers at NASA's Goddard Space Flight Center in Maryland tried to restart the computer Monday, but the same thing happened. They're now trying to switch to a backup memory unit. If that works, the telescope will be tested for a day, before the science instruments are turned back on and observations can resume.
For now, the cameras and other instruments are in a so-called safe mode.
Launched in 1990, Hubble is showing more and more signs of aging, despite a series of repairs and updates by spacewalking astronauts during NASA's shuttle era. The idled computer was installed during the fifth and final service call in 2009.
NASA plans to launch Hubble's successor, the James Webb Space Telescope, in November. This observatory will be too far from Earth -- 1 million miles (1.5 million kilometres) away in a solar orbit -- for astronaut tune-ups. The launch from French Guiana using Europe's Ariane rocket is years behind schedule; the latest delay of two weeks is the result of rocket processing and scheduling issues.
Scientists hope to have an overlap in orbit between Hubble and the considerably more advanced and powerful Webb.
------
The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute's Department of Science Education. The AP is solely responsible for all content.
Air quality advisories are in effect across Western Canada as smoky conditions plague some areas, according to the latest forecasts. Here's where.
Many foods fall under the category of ultraprocessed foods, depending on their exact ingredients. This type of food has been studied a lot lately, and the results aren’t great.
Hollywood actor Steve Buscemi has been treated for injuries after being punched in the face while walking in New York City.
Four years on, the controversy over whether airlines owed refunds to passengers after cancelling hundreds of thousands of flights during the pandemic continues to simmer, aggravated by a sluggish, opaque complaints process.
For her latest column on CTVNews.ca, royal commentator Afua Hagan writes about Prince Harry and Meghan Markle's recent visit to Nigeria, calling it a 'deeply meaningful campaign' that was about aligning their ongoing efforts to foster mental-health awareness and promoting the Invictus Games.
Ontario will need 33,200 more nurses and 50,853 more personal support workers by 2032, the government projects — figures it tried to keep secret but were obtained by The Canadian Press.
Whether you were lucky to nab tickets to one of Taylor Swift's six sold-out Toronto concerts in November or not, a new 'fan experience' hopes to get you into the party spirit.
After receiving a DNA kit one Christmas from his son-in-law, Hugh McCormick soon discovered that he had six unknown siblings, with whom he shared the same birth parents.
The star prosecution witness in Donald Trump's hush money trial is set to take the stand Monday with testimony that could help shape the outcome of the first criminal case against an American president.
Two daughters and a mother were reunited online 40 years later thanks to a DNA kit and a Zoom connection despite living on three separate continents and speaking different languages.
Mother's Day can be a difficult occasion for those who have lost or are estranged from their mom.
YES Theatre Young Company opened its acclaimed kids’ show, One Small Step, at Sudbury Theatre Centre on Saturday.
An Ottawa pizzeria is being recognized as one of the top 20 deep-dish pizzas in the world.
A family of fifth generation farmers from Ituna, Sask. are trying to find answers after discovering several strange objects lying on their land.
A Listowel, Ont. man, drafted by the Hamilton Tigercats last week, is also getting looks from the NFL, despite only playing 27 games of football in his life.
The threat of zebra mussels has prompted the federal government to temporarily ban watercraft from a Manitoba lake popular with tourists.
A small Ajax dessert shop that recently received a glowing review from celebrity food critic Keith Lee is being forced to move after a zoning complaint was made following the social media influencer’s visit last month.
The Canada Science and Technology Museum is inviting visitors to explore their poop. A new exhibition opens at the Ottawa museum on Friday called, 'Oh Crap! Rethinking human waste.'