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New materials enhance high-performance telescopes in astronomy

Covestro collaborates with the National Institute for Astrophysics in Italy (INAF) to improve the performance of astronomical instruments through holographic optical elements. Covestro has used Bayfol HX photopolymer films, which have proven to be ideal for reproducible production of highly efficient volume holograms in high performance telescopes for new spectrometers. This allows periodic refractive index patterns to be flexibly inscribed …

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New thoughts on how carbonates register the global carbon cycle

Geyman dives after a sediment test in the Bahamas. Analysis of the samples helps to reconstruct the earth's past complex chemistry. Credit: Emily Geyman When scientists want to study the earth's very ancient geological past – usually more than 100 million years ago – they often turn to rocks called carbonates. Calcium carbonates, the most ubiquitous forms of carbonate, are …

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Scientists refine how fast the universe is expanding

The universe may be growing at a slower rate than we thought. A team of Clemson University astrophysicists developed a new technology to quantify the all-important Hubble Constant. And their results pump the breaks of the last few kilometers -per-second per megaparsec estimates. The concept of an expanding universe was promoted by astronomer Edwin Hubble (yes, as Hubble). In the …

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Oregon falls short on emissions promises;

A – A + In a climate report spearheaded by Oregon State University ecologists, thousands of scientists said the world is dooming itself by inaction. The World Scientists' Warning of a Climate Emergency report released Nov. 5 goes further than many before, declaring a “climate emergency” and proposing harsh measures governments and individuals should take to reverse a dangerous, impending …

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37% of Britons believe that people inevitably have to live in space

More than a third of the British believe that people inevitably have to live in space because the earth is becoming increasingly uninhabitable. While the public sector dominated space exploration during the 20th century, the space race during this century was revolutionized by And it seems increasingly likely that people will look to private companies like SpaceX, Virgin Galactic and …

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NASA's Voyager 2 discovers new details about Interstellar Space

About a year ago, the US space agency NASA's spaceship Voyager 2 left our solar system. Several reports recently released in Nature Astronomy describe the ship's most important scientific findings. NASA says that Voyager 2's mission led to new discoveries about the boundary that divides our solar system from the interstellar space. "Interstellar" means "between stars." But scientists define the …

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Panoramic Image of Southern Sky Shows Our Galaxy and Others Beyond

This mosaic of the southern sky was assembled from 208 TESS images. Among the many notable celestial objects visible are the glowing band (left) of the Milky Way, our home Galaxy seen edgewise, the Orion Nebula (top), a nursery for newborn stars, and the Large Magellanic Cloud (center), a nearby galaxy located about 163,000 light-years away. NASA / MIT / …

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NASA Instrument to Explore the Atmosphere of Exoplanets

This artist concept shows the European Space Agency's ARIEL spacecraft en route to Lagrange Point 2 (L2) – a gravitationally stable, solar-centered orbit – where it will be protected from the sun and have a clear view of the sky. NASA's JPL will handle the mission's CASE instrument. Credit: ESA / STFC RAL Space / UCL / Europlanet-Science Office NASA …

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