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NASA's MAVEN spacecraft reveals stunning ultraviolet views of Mars

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NASA's MAVEN (Mars Atmosphere and Volatile EvolutioN) mission has acquired stunning views of Mars in two ultraviolet images taken at different points along our neighboring planet's orbit around the sun. The images show how the Martian atmosphere responds to changes in seasons and solar activity. They also reveal the diversity of clouds and ozone in the upper atmosphere. © NASA/LASP/CU Boulder MAVEN is the first spacecraft dedicated to exploring the tenuous upper atmosphere of Mars. The mission's combination of detailed point measurements and global observations provides a powerful way to understand the properties of the upper atmosphere¹. MAVEN's Imaging Ultraviolet Spectrograph (IUVS) instrument captured the remarkable ultraviolet views. According to NASA, the instrument has been designed to measure ultraviolet wavelengths ranging from 110 to 340 nanometers, which fall outside of the visible range. One image was taken in July 2022, during the southern hemisphere's ...
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Phosphorus, a key element for life, found in Saturn's moon Enceladus

 Scientists have made a breakthrough discovery that could boost the chances of finding life beyond Earth. They have detected phosphorus, a vital element for life, in the ocean of Enceladus, one of Saturn's icy moons. The finding is reported in the journal Nature .  Phosphorus is one of the six essential elements for life, along with carbon, hydrogen, oxygen, nitrogen and sulfur. It is used to build DNA, RNA and cell membranes, and is crucial for energy metabolism and cellular communication. Enceladus is a small moon that has a global ocean of liquid water beneath its frozen surface. The ocean periodically erupts through cracks in the ice, sending plumes of water vapor and ice grains into space. These plumes were sampled by NASA's Cassini spacecraft, which orbited Saturn from 2004 to 2017. Using data from Cassini, researchers found traces of phosphorus in the form of sodium phosphates, a salt sometimes used in deli meat here on Earth, in the ice grains ejected by Enceladus....
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Hubble reveals the dazzling stars of NGC 6544

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  The NASA/ESA Hubble Space Telescope has captured a stunning image of the globular cluster NGC 6544 , a dense swarm of tens of thousands of stars that lies more than 8000 light-years away from Earth in the constellation Sagittarius . Globular clusters are ancient relics of the early universe, containing some of the oldest stars in the galaxy. They orbit around the center of the Milky Way, forming a spherical halo that extends far beyond the galactic disk. NGC 6544 is one of the closest globular clusters to the galactic plane, making it an interesting target for astronomers who want to study its origin and evolution. The image of NGC 6544 combines data from two of Hubble's instruments — the Advanced Camera for Surveys and Wide Field Camera 3 — as well as two separate astronomical observations. The first observation was designed to find a visible counterpart to the radio pulsar discovered in NGC 6544. A pulsar is the rapidly spinning remnant of a dead star, emitting twin beams of e...
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