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Astronomy

The Equivalence Principle Confirmed in Space

Artist’s impression of the Microscope microsatellite, placed in orbit in April 2016 to test the universality of free fall, also known as the equivalence principle. CNES/Virtual-IT, 2017   The Equivalence Principle Confirmed in Space by Mathieu Grousson The first results …

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Voyager 1 Fires Up Thrusters After 37 Years

Voyager in Deep Space (Artist Concept) An artist concept depicting one of NASA’s twin Voyager spacecraft. Humanity’s farthest and longest-lived spacecraft celebrated 40 years in August and September 2017. The Voyager spacecraft were built by JPL, which continues to operate …

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Giant black hole pair photobombs Andromeda Galaxy

Chandra X-ray Observatory data for J0045+41 (inset, blue region) in the context of optical images of Andromeda from the Hubble Space Telescope.NASA/CXC/University of Washington/ESA   Giant black hole pair photobombs Andromeda Galaxy It seems like even black holes can’t resist …

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WASP-18b Has Smothering Stratosphere Without Water

  WASP-18b Has Smothering Stratosphere Without Water A NASA-led team has found evidence that the oversized planet WASP-18b is wrapped in a smothering stratosphere loaded with carbon monoxide and devoid of water. The findings come from a new analysis of …

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MUSE most detailed look at galaxy field

  MUSE most detailed look at galaxy field Astronomers using the MUSE instrument on ESO’s Very Large Telescope in Chile focused on the Hubble Ultra Deep Field, measuring distances and properties of 1600 very faint galaxies including 72 galaxies that …

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Honeycomb-Textured Landforms in Northwestern Hellas Planitia

Image credit: NASA/JPL-Caltech/Univ. of Arizona   Honeycomb-Textured Landforms in Northwestern Hellas Planitia This image from NASA’s Mars Reconnaissance Orbiter (MRO) targets a portion of a group of honeycomb-textured landforms in northwestern Hellas Planitia, which is part of one of the …

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Mapping Particle Injections in Earth’s Magnetosphere

  Mapping Particle Injections in Earth’s Magnetosphere Visualizations by Tom Bridgman Released on November 27, 2017 A view from above the northern hemisphere of particle injection propagation constructed from their respective satellite detections. Distinct injections, and their detection by satellites, …

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All Missions On Board for NASA Heliophysics Research

  All Missions On Board for NASA Heliophysics Research Scientists have been studying the near-Earth environment for the better part of a century, but many mysteries — like where the energetic particles that pervade the area originate and become energized …

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Cassini Image Mosaic: A Farewell to Saturn

After more than 13 years at Saturn, and with its fate sealed, NASA’s Cassini spacecraft bid farewell to the Saturnian system by firing the shutters of its wide-angle camera and capturing this last, full mosaic of Saturn and its rings …

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Recurring Martian Streaks: Flowing Sand, Not Water?

This inner slope of a Martian crater has several of the seasonal dark streaks called “recurrent slope lineae,” or RSL, that a November 2017 report interprets as granular flows, rather than darkening due to flowing water. The image is from …

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Solar System’s First Interstellar Visitor Dazzles Scientists

  Solar System’s First Interstellar Visitor Dazzles Scientists Astronomers recently scrambled to observe an intriguing asteroid that zipped through the solar system on a steep trajectory from interstellar space-the first confirmed object from another star. Now, new data reveal the …

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Interstellar space probes: Where’s the brakes?!

  Interstellar space probes: Where’s the brakes?! Theoretician at Goethe University Frankfurt calculates effect of magnetic sails Theoretician at Goethe University Frankfurt calculates effect of magnetic sails FRANKFURT. With a miniaturised space probe capable of being accelerated to a quarter …

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Hubble’s Cosmic Search for a Missing Arm

  Hubble’s Cosmic Search for a Missing Arm This new picture of the week, taken by the NASA/ESA Hubble Space Telescope, shows the dwarf galaxy NGC 4625, located about 30 million light-years away in the constellation of Canes Venatici (The …

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