A small asteroid passed extremely close to the Earth on January 9, missing us by only 192,500 kilometers (119,500 miles), roughly half the distance between the Earth and the Moon. Because of its small size, the asteroid, called 2017 AG13, wasn’t spotted until two days before its approach.
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Researchers at NASA have developed a new substance that generates minute amounts of electricity, for use in a bandage that takes advantage of an electrically-based healing process. This new substance, a polymer called polyvinylidene fluoride (PVDF), produces a mild electrical current when pressure or heat, such as body heat, is applied to it.
“This method utilizes generated low level electrical stimulation to promote the wound healing process while simultaneously protecting it from infection,” according to NASA.
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The more we study it, the universe continues to become curiouser and curiouser, and the last few weeks have been no exception: X marks the center of the galaxy; one of Saturn’s rings was broken; and NASA plans to destroy Juno space probe — to protect aliens?
Astronomers at the Max Planck Institute and the University of Toronto have verified the existence of an extremely large X-shaped arrangement of stars at the center of the Milky Way galaxy, a structure that was hinted at by previous observations of other galaxies and computer models. From Earth’s point of view, the galaxy’s central bulge of millions of stars looks like a peanut shape, with the X-structure being an integral part of this.
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An exoplanet 320 light-years from Earth has been found in a trinary star system, photographed by the ESO Very Large Telescope in Chile. Aside from having the distinction of being one of mere handful of exoplanets that have been directly imaged, the planet, labeled as HD 131399Ab, has a year that lasts 550 Earth years, as it orbits the large central star.
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