One of the most interesting stars in the Milky Way is still serving up more than its fair share of intrigue.
In October 2020, SGR 1935+2154, the magnetar responsible for spitting out radio signals never before detected in our home galaxy, unexpectedly slowed down.
Now, scientists believe the rotational slowdown could be evidence of a volcano-like eruption on its surface, spewing material out into space that altered the star’s environment enough to decelerate the spinning of the planet minutely.
“When we put everything together, we saw drops in brightness that were not caused by Quaoar, but that pointed to the presence of material in a circular orbit around it,” said Bruno Morgado of the Universidade Federal do Rio de Janeiro in a statement. “The moment we saw that we said, ‘Okay, we are seeing a ring around Quaoar.’”
Quaoar is part of a collection of about 3,000 dwarf planets known as trans-Neptunian objects, which are beyond the orbit of the planet Neptune.
Scientists are now wondering why the dense material in Quaoar’s ring has not come together to form a small moon, because the ring itself is “at a distance of almost seven and a half times the radius of Quaoar,” the ESA said.
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On September 24, 2023, the sample return capsule will detach from the spacecraft, perform an entry, descent and landing sequence, and touch down in the Utah desert.
Thanks to our contribution to the mission, Canada will receive a portion of the asteroid material!
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The power to turn invisible, which has long been a hallmark of science fiction and fantasy, would be a revolutionary technical breakthrough. Check out how scientists are making an invisibility cloak into reality.
Despite decades of innovation in fabrics with high-tech thermal properties that keep marathon runners cool or alpine hikers warm, there has never been a material that changes its insulating properties in response to the environment. Until now.
University of Maryland researchers have created a fabric that can automatically regulate the amount of heat that passes through it. When conditions are warm and moist, such as those near a sweating body, the fabric allows infrared radiation (heat) to pass through. When conditions become cooler and drier, the fabric reduces the heat that escapes. The development was reported in the February 8, 2019 issue of the journal Science.
The researchers created the fabric from specially engineered yarn coated with a conductive metal. Under hot, humid conditions, the strands of yarn compact and activate the coating, which changes the way the fabric interacts with infrared radiation. They refer to the action as “gating” of infrared radiation, which acts as a tunable blind to transmit or block heat.
An asteroid mining startup called AstroForge is preparing to launch two missions to space this year, Bloomberg reports — inaugural, albeit early attempts to extract valuable resources from space rocks.
AstroForge isn’t looking to actually land on an asteroid and start extracting materials just yet. Its first mission to space, slated to launch aboard a SpaceX rideshare in April, will involve testing out ways of refining platinum from asteroid-like materials in space.
Advanced new Faraday cages—the metal mesh enclosures that can block wireless signals—can also be switched on and off for reversible protection against noise, a new study finds.
In addition, these new shields can be easily fabricated through a technique akin to spray-painting, which could help them find use in electronics, researchers say.
Built out of a novel material called MXene, these cages could block and allow signals as desired.
The world has witnessed many bizarre things, but seeing a biological body devoid of life become functional with the help of technology is a totally new tale. OSCAR, a living being formed from human cells, was born. Cornelis Vlasman is the protagonist, a talented biologist who believes that the path less trodden is, by definition, the least interesting. He creates his own laboratory with a few like-minded people, where he experiments with organic materials on his own initiative, with his own resources, and with his own crew.
After many years of hard labor, Vlasman’s team is successful in creating new life from cells collected from his own body. Under his guidance, OSCAR, the world’s first living organism, is being built. OSCAR is a human-sized prototype built with interactive organ modules created from human cells.
In a modular system, independent modules, similar to building blocks, constitute a transformable and thus changeable arrangement.