Monday morning temperatures at the Edmonton Blatchford station measured 3.9 C with 26 km/h winds gusting to 38 km/h out of the west, northwest.
Gah! I missed it!
It’s just before 6:30 a.m. and here I am sitting in my office with the curtains drawn like a fool (a darn fool, I say) when a streaking meteor buzzes the early morning sky in Edmonton. It didn’t take long before the internet was abuzz and everyone was asking ‘did you just see that!?’ No, no I did not.
Thankfully the internet is undefeated and Twitter user @FamilyLines was able to capture the streaking comet via a Google Nest cam. A second video from user @KixxAxe was posted online shortly after also via Google Nest cam. Very cool!
And yet, here’s another great look at the uploaded to the American Meteor Society’s YouTube page.
On the weather front, we’re looking at another gorgeously warm day today albeit one with plenty of wind.
I could hear the gusts slamming into the side of my house overnight and early this morning. Forecasters are calling for winds of 30-50 km/h basically all day today and extending into tomorrow. Looks like we’ll be above zero for the next four days so enjoy!
Does Lisa need a coat (and mittens)?
I think you’re safe. Little windy, and a little meteor-y, but otherwise you’re safe!
Today: Clearing early this morning. Wind west 30 km/h gusting to 50. High 6 C. UV index 1 or low.
Tonight: Clear early this evening then partly cloudy with 30 per cent chance of flurries. Wind west 20 km/h gusting to 40 becoming light this evening. Low -5 C. Wind chill -9 overnight.
Tomorrow: A mix of sun and cloud with 30 percent chance of flurries. Wind becoming northwest 20 km/h gusting to 40 late in the morning. High plus 3. Wind chill minus 11 in the morning. UV index 1 or low. Clear overnight. Low -6 C.
Sunrise: 7:37 a.m.
Sunset: 5:57 p.m.
Average High: -2 C
Average Low: -12 C
Max: 8.5 C
Min: -3.6 C
Total Precipitation: 0.0 mm
On This Day (1996-2019)
Highest temperature: 7.1 C (1998)
Lowest temperature: -23.1 C (2003)
📸 Eye On Edmonton
This space is dedicated to some of the great and interesting photos taken by Postmedia photographers while they’re out and about town.
The best images from NASA's Perseverance rover so far – CTV News
Almost as soon as NASA’s Perseverance rover landed on Mars it was beaming back images of its surroundings.
The first pictures were black and white and a little grainy. They were soon followed by video and high definition images of the rocks, ridges and the rover itself.
Here’s a collection of some of the best images to come from Perseverance’ so far.
This is the first image NASA’s Perseverance rover sent back after touching down on Mars on Feb. 18, 2021. The view, from one of Perseverance’s Hazard Cameras, is partially obscured by a dust cover. (NASA/JPL-Caltech)
Perseverance’s shadow can be seen in this image, the first one in colour sent by the rover. (NASA/JPL-Caltech)
As a teaser to some of the ground-breaking video to come, NASA released this image of Perseverance being gently lowered onto Mars’s surface during its descent on Feb. 18. (NASA via AP)
In video sent back by Perseverance, we can see the spacecraft’s parachute open, revealing a mix of white and orange markings on the inside. These were later revealed to be part of secret message left by NASA systems engineer Ian Clark. Clark used binary code to spell out “Dare Mighty Things” on the stripes of the 21-metre parachute. Also included were the GPS coordinates of the mission’s headquarters in Pasadena, Calif. (NASA/JPL-Caltech via AP)
While we’ve seen panorama images from previous rover missions, Perseverance’s high definition cameras are revealing details from Mars like we’ve never seen before. (NASA/JPL-Caltech via AP)
This oddly-shaped rock carved by the elements on Mars’ surface was spotted near Perseverance’s landing zone and is an example of the high-quality images that we can expect from the rover’s cameras. (NASA/JPL-Caltech/ASU/MSSS)
ROVER ‘FAMILY HISTORY’
Along with loads of science instruments Perseverance is also boasting a decal showing the history of NASA’s rovers on Mars. (NASA/JPL-Caltech/ASU/MSSS)
TRIBUTE TO DESCENT STAGE
“A moment of respect for the descent stage,” NASA tweeted from the Perseverance’s twitter account after about a week after the landing. The image above shows a smoke plume from where the descent stage (the part of the spacecraft that lowered Perseverance gently to Mars’ surface) made its “intentional surface impact.” (@NASAPersevere/Twitter)
Dispatches from Mars: Perseverance rover sends images – Photos – UPI.com
NASA’s Mars Perseverance rover acquired this image using its left Mastcam-Z camera on Thursday. Mastcam-Z is a pair of cameras located high on the rover’s mast. Photo courtesy of NASA |
Perseverance documents the Martian surface. Photo courtesy of NASA |
The Martian surface is documented is detail from Perseverance. Photo courtesy of NASA |
The navigation cameras aboard the Mars rover captured this view of the rover’s deck on Monday. This view provides a look at PIXL (the Planetary Instrument for X-ray Lithochemistry), one of the instruments on the rover’s stowed arm. Photo courtesy of NASA/JPL-Caltech
This panorama, made by the navigation cameras aboard Perseverance, was stitched together from six individual images after they were sent back to Earth. Subsequent missions, currently under consideration by NASA in cooperation with the European Space Agency, would send spacecraft to Mars to collect these cached samples from the surface and return them to Earth for in-depth analysis. Photo courtesy of NASA/JPL-Caltech
This is the first high-resolution, color image to be sent back by the Hazard Cameras (Hazcams) on the underside of NASA’s Perseverance Mars rover after its landing on February 18. Photo courtesy of NASA |
This high-resolution still image, from the camera aboard the descent stage, is part of a video taken by several cameras as NASA’s Perseverance rover touched down on Mars. Photo courtesy of NASA |
Perseverance can be seen falling through the Martian atmosphere in the descent stage, its parachute trailing behind, in this image taken on Thursday by the High-Resolution Imaging Experiment camera aboard the Mars Reconnaissance Orbiter. The ancient river delta, which is the Perseverance mission’s target, can be seen entering Jezero Crater from the left. Photo courtesy of NASA |
An illustration depicts the rover driving in the foreground across the plain of Jezero Crater, where the robotic explorer landed safely. Image courtesy of NASA
An image showing where Perseverance Mars rover landed is shown during a NASA Perseverance rover mission post-landing update, on February 18, at NASA’s Jet Propulsion Laboratory in Pasadena, Calif. Photo by Bill Ingalls/NASA |
Members of NASA’s Perseverance Mars rover team watch in mission control as the first images arrive moments after the spacecraft successfully touched down on Mars. Photo by Bill Ingalls/NASA |
The first photos taken by NASA’s Perseverance Mars rover after landing on the Martian surface. A key objective for Perseverance’s mission on Mars is astrobiology, including the search for signs of ancient microbial life. Photo courtesy of NASA |
These computer simulations show Perseverance landing on the Martian surface. The rover will characterize the planet’s geology and past climate, paving the way for human exploration of the Red Planet and be the first mission to collect and cache Martian rock and regolith. Image courtesy of NASA |
In this illustration of its descent to Mars, the spacecraft carrying NASA’s Perseverance rover slows down using the drag generated by its motion in the Martian atmosphere. Hundreds of critical events must execute precisely on time for the rover to land on Mars safely. Entry, descent, and landing, or “EDL,” begins when the spacecraft reaches the top of the Martian atmosphere, traveling nearly 12,500 mph. The cruise stage separates about 10 minutes before entering into the atmosphere, leaving the aeroshell, which encloses the rover and descent stage, to make the trip to the surface. Image courtesy of NASA |
An illustration of Perseverance on Mars, launched from Earth in July. It is the fifth rover to successfully reach Mars, and is the first of three that may return rocks samples to Earth. Image courtesy of NASA |
Pesticide imidacloprid threatens future for key pollinator – EurekAlert
An insecticide used to control pest infestations on squash and pumpkins significantly hinders the reproduction of ground-nesting bees — valuable pollinators for many food crops, a new University of Guelph study has revealed.
This first-ever study of pesticide impacts on a ground-nesting bee in a real-world context found female hoary squash bees exposed to imidacloprid dug 85 per cent fewer nests, collected less pollen from crop flowers and produced 89 per cent fewer offspring than unexposed bees.
“Because they’re not making nests and not collecting pollen, they cannot raise offspring,” said Dr. Susan Willis Chan, a post-doc in the School of Environmental Sciences (SES), who conducted the study with Dr. Nigel Raine, holder of the Rebanks Family Chair in Pollinator Conservation in SES. “That means imidacloprid-exposed populations are going to decline.”
Neonicotinoids (or neonics) are neurotoxic insecticides that kill insects by attacking their nervous systems, affecting learning, foraging and navigation in many kinds of bees. Farmers use the neonic imidacloprid to control cucumber beetles, the most damaging crop pest for squash and pumpkins.
Many species of ground-nesting bees, including the hoary squash bee, are responsible for pollination of numerous fruits, vegetables and oilseed crops in North America, said Chan.
“Solitary ground-nesting bees make up about 70 per cent of bee species. It’s a really important ecological group and is also really important in crop pollination,” she said.
However, these ground-dwellers are often overlooked when it comes to evaluating the impacts of pesticides on pollinators, she added.
Published recently in Scientific Reports , the study involved three years of monitoring the foraging and nesting behaviour of squash bees.
To mimic field conditions, Chan held the bees in mesh-covered enclosures that still allowed exposure to sun and rain and other environmental factors. She applied pesticides in ways that mirror actual use in farmers’ fields.
Chan tested three insecticide treatments: the neonic imidacloprid applied to soil at planting time; the neonic thiamethoxam applied as a seed treatment; and an anthranilic diamide (an emerging non-neonic insecticide) sprayed onto growing plants. A fourth group without insecticides served as a control.
Studying the bees for three years allowed the team to show longer-term impacts of imidacloprid exposure on reduced nest-building, foraging and offspring reduction.
Bees visiting squash plants treated with anthranilic diamide collected significantly less pollen than those in the control group but had no fewer nests or offspring. Chan saw no measurable effects from the thiamethoxam seed treatment on pollen harvesting, nest construction or offspring production.
“Farmers and regulators need to look at alternatives to applying imidacloprid to soil for controlling pests on squash and pumpkins,” she said.
“My recommendation to pumpkin and squash farmers is to stay away from imidacloprid applied to soil to keep their squash bees healthy.”
Raine said it’s likely other solitary, ground-nesting species are also being affected.
Noting that other ground-nesters live in farm fields, he said, “The sort of impacts from soil-applied pesticide exposure we’ve seen in this study could affect many other species of wild bees.”
He said current regulatory assessments for insect pollinators fail to consider risks associated with soil pesticide residues. “Our results highlight why this should be changed to better characterize risk for the many bee species that spend a large proportion of their life in soil.”
Given the importance of pollinating insects to crop production, Chan said, “Farmers need to protect their crops from pests, but they also absolutely need to protect pollinators from the unintended effects of pesticides.”
Referring to imidacloprid, she said, “The data on this particular product are so clear that there’s really no question about what has to happen. We have to find something else.”
This research was funded by the Ontario Ministry of Agriculture, Food and Rural Affairs; the Ontario Ministry of the Environment, Conservation and Parks; the Ontario Fresh Vegetable Growers’ Association; the Natural Sciences and Engineering Research Council; and the Weston Family Foundation.
Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.
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