Space and astronomy news
ESA’s Gaia space telescope discovered two star streams that helped form the infant Milky Way. Both are so ancient that they likely formed before even the oldest parts of our present-day galaxy’s spiral arms and disc. This image shows the location and distribution of Shakti and Shiva stars throughout the Milky Way. Credit: ESA/Gaia/DPAC/K. Malhan.
“The Milky Way has changed so significantly since these stars were born that we wouldn’t expect to recognize them so clearly as a group – but the unprecedented data we’re getting from Gaia made it possible.”Gaia uses astrometry — the precise measurements of the positions and movements of stars and other celestial bodies – and is building the largest, most precise three-dimensional map of our Galaxy by surveying nearly two billion objects.
The components of the Milky Way Galaxy. This artist’s impression shows our roughly 13 billon-year-old ‘barred spiral galaxy’ that is home to a few hundred billion stars. Credit: Left: NASA/JPL-Caltech; right: ESA; layout: ESA/ATG medialab.
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'Shiva and Shakti': The ancient star streams that helped weave the Milky WayRobert Lea is a science journalist in the U.K. whose articles have been published in Physics World, New Scientist, Astronomy Magazine, All About Space, Newsweek and ZME Science. He also writes about science communication for Elsevier and the European Journal of Physics. Rob holds a bachelor of science degree in physics and astronomy from the U.K.
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Gaia unravels the ancient threads of the Milky WayESA's Gaia space telescope has further disentangled the history of our galaxy, discovering two surprising streams of stars that formed and wove together more than 12 billion years ago.
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Ancient settlers of Easter Island had fusion cuisine, study findsA new study reveals that the first settlers of Easter Island had a fusion cuisine of plants native to Polynesia and South America, suggesting regular contact between early Polynesians and South Americans a millennium ago.
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Earliest building blocks of the Milky Way discovered near its galactic heartAstronomers using the Gaia space telescope have located two ancient streams of stars that helped the Milky Way galaxy grow and evolve more than 12 billion years ago.
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UC Santa Cruz researchers study impacts of CZU wildfires on local streamsAfter the CZU Lightning Complex fires tore through the counties of San Mateo and Santa Cruz in 2020, over 86,000 acres of land were left ravaged in its wake. Now, scientists from UC Santa Cruz are …
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