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Mexican experts said Monday that 35 per cent more monarch butterflies arrived this year to spend the winter in mountaintop forests, compared to the previous season. Experts say the rise may reflect the butterflies' ability to adapt to more extreme bouts of heat or drought by varying the date when they leave Mexico. Source

Mexican experts said Monday that 35 per cent more monarch butterflies arrived this year to spend the winter in mountaintop forests, compared to the previous season. Experts say the rise may reflect the butterflies' ability to adapt to more extreme bouts of heat or drought by varying the date when they leave Mexico. Source

NASA's Earth Observatory has released satellite images of an undersea volcano erupting. The image, taken on May 14 by the Operational Land Imager 2 on the Landsat 9 satellite, shows a plume of discolored water being emitted from the submarine volcano. Source

Boeing managed to dock a spacecraft at the International Space Station late last week, but it was not without several minor hangups. The mission kicked off Thursday evening with a Florida launch, and the Starliner — which is designed to carry astronauts but is flying without people for this test — docked with the ISS Friday night at 8:28 pm ET. Source

Measuring the expansion rate of the universe was one of the Hubble Space Telescope's main goals when it was launched in 1990. Over the past 30 years, the space observatory has helped scientists discover and refine that accelerating rate -- as well as uncover a mysterious wrinkle that only brand-new physics may solve. Source

The race to resume supersonic passenger flights nearly two decades after the retirement of Concorde was offered a glimmer of excitement on Monday when plane manufacturer Bombardier revealed high speed achievements while confirming the launch of its new business jet. Source

The proposed energy corridor to connect the four Atlantic provinces to hydroelectricity from Quebec and Labrador is important for helping the region reach zero carbon emissions, but the project isn't enough, a new study suggests. When coal is phased out, demand for electricity will increase, according to the study released last week by Enviroeconomics and Navius Research, on behalf of the Halifax-based Ecology Action Centre. Source

Still only owlets when they were brought to the Calgary Zoo last summer, 20 burrowing owls have since been returned to the wild in southeastern Alberta. "They grew up into adults at the zoo over winter," said Graham Dixon-MacCallum, a conservation research population ecologist with the Wilder Institute/Calgary Zoo. Source

TORONTO - Leigh Adams has seen a steady rise of material for review since she began moderating user comments on websites roughly 14 years ago, but she says the volume only exploded in the last few years as the content's nature became so divisive there's only one word for it: "Bonkers. Source

With the long weekend upon us, Canadians will likely spend the next few days out at the lake or in their backyards, gathered around a campfire. This familiar sight also comes with a familiar question: Why does campfire smoke seem to follow you around wherever you go? Source