Space Exploration

NASA's Mars copter flight could happen as soon as Monday

NASA's Ingenuity Mars Helicopter could make its first flight over the Red Planet as soon as Monday, the US space agency reported, following a delay of more than a week due to a possible technical issue.

Astronomy

Hubble watches cosmic light bend

This extraordinary image from the NASA/ESA Hubble Space Telescope of the galaxy cluster Abell 2813 (also known as ACO 2813) has an almost delicate beauty, which also illustrates the remarkable physics at work within it. The ...

NASA chooses SpaceX to take humans back to Moon

NASA has selected SpaceX to land the first astronauts on the surface of the Moon since 1972, the agency said Friday, in a huge victory for Elon Musk's company.

A new super-Earth detected orbiting a red dwarf star

In recent years there has been an exhaustive study of red dwarf stars to find exoplanets in orbit around them. These stars have effective surface temperatures between 2400 and 3700 K (over 2000 degrees cooler than the Sun), ...

Surprise twist suggests stars grow competitively

A survey of star formation activity in the Orion Nebula Cluster found similar mass distributions for newborn stars and dense gas cores, which may evolve into stars. Counterintuitively, this means that the amount of gas a ...

Laos jars are slowly revealing their secrets

In the rugged province of Xieng Khoaung in upper northern Laos are scattered more than 2,000 large carved stone jars. They vary in size, with the biggest standing at just over 2.5 meters tall and weighing in at 30 tons. The ...

NASA rocket to survey the solar system's windshield

Eleven billion miles away—more than four times the distance from us to Pluto—lies the boundary of our solar system's magnetic bubble, the heliopause. Here the Sun's magnetic field, stretching through space like an invisible ...

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Medical Xpress

Diseases, Conditions, Syndromes
Masks come off as Israel vaunts virus victory
Diseases, Conditions, Syndromes
Quinn on Nutrition: Nutrition for lung disease

Tech Xplore

Machine learning & AI
Discerning deep fakes digitally

Experiments cast doubts on the existence of quantum spin liquids

A quantum spin liquid is a state of matter in which interacting quantum spins do not align even at lowest temperatures, but remain disordered. Research on this state has been going on for almost 50 years, but whether it really ...

Tarantula's ubiquity traced back to the cretaceous

Tarantulas are among the most notorious spiders, due in part to their size, vibrant colors and prevalence throughout the world. But one thing most people don't know is that tarantulas are homebodies. Females and their young ...

On the pulse of pulsars and polar light

Faced with the tragic loss of the Arecibo observatory in Puerto Rico and the often prohibitive cost of satellite missions, astronomers are searching for savvy alternatives to continue answering fundamental questions in physics.

Researchers develop microscopic theory of polymer gel

Russian scientists have proposed a theory of phase transformation in polymer gels. It explains the mechanisms of the dramatic reduction in volume of zwitterionic hydrogels when they are cooled. The results are published in ...

Bottom trawling harms the ocean—and the climate

The destructive effects of ocean-bottom trawling are easy enough to imagine from any basic description of the practice. Heavy nets 100 yards wide, equipped with weighted rollers and steel doors, are dragged across the seafloor ...

Corporations agree to transparency on climate lobbying

Insurer American International Group Inc., railroad company CSX Inc. and electric companies Duke Energy Corp., FirstEnergy Corp. and Entergy Corp. have pledged to report publicly about their influence on climate policy and ...

Natural gas leading source of EU's power emissions

Gas power plants overtook lignite coal plants in 2020 to become the European Union's largest single source of emissions from electricity, an analysis of the bloc's Emissions Trading Scheme showed Friday.

Taking a systems-thinking approach to anti-Black racism

A group of Schulich Medicine & Dentistry alumni have authored a thorough roadmap for institutions, government and policy-makers to follow in order to implement a systems-thinking approach to address anti-Black racism in Ontario.