Saturn And Mars Visit Milky Way Star Clouds : Planets, Stars, Nebulas And A Galaxy This Impressive Image

The launch of the Scout launch vehicle at the Wallops Flight Facility, VA … #Astronomy #Space #Spacegram #Spaceflight #Nasa #ESA #ASI #Astronaut #Universe #Cosmos #Sky #Earth #Nebula #Galaxy #Love #MarsGeneration #TheMarsGeneration #MoonColonist #Moon #Astro_Lorenzo

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NASA Dives Deep into the Search for Life

NASA logo. May 30, 2018 Off the coast of Hawaii’s Big Island and more than 3,000 feet beneath the ocean surface lie the warm, bubbling springs of a volcano — a deep-sea location that may hold lessons for the search for extraterrestrial life.

Artist rendering showing an interior cross-section of the crust of Enceladus, which shows how hydrothermal activity may be causing the plumes of water at the moon’s surface. Image Credits: NASA-GSFC/SVS, NASA/JPL-Caltech/Southwest Research Institute. Here, NASA and its partners are blending ocean and space exploration, with a project called SUBSEA, short for Systematic Underwater Biogeochemical Science and Exploration Analog. Lessons learned in both fields will be mutually beneficial and could help design future science-focused missions across the solar system. Saturn’s moon Enceladus and Jupiter’s moon Europa are thought to have liquid oceans and hydrothermal activity under icy crusts. Locations on Earth with key similarities to future deep-space destinations are called analog environments. SUBSEA’s target, the springs emerging from a volcano forming the next Hawaiian island, called the Lō`ihi seamount, is an analog for these ocean worlds. When NASA’s Cassini mission to Saturn discovered a plume of water erupting from beneath the icy surface of Enceladus, the characteristics of the plume told scientists what conditions might be like on the sea floor. This included the temperature, pressure and composition, and suggested the presence of hydrothermal activity. Scientists think these moons are good places to look for potential life, because water interacting with rock on their sea floors could yield chemical reactions that would make microbial metabolism possible.

Image above: Dramatic jets of ice, water vapor and organic compounds spray from the south pole of Saturn’s moon Enceladus in this image captured by NASA’s Cassini spacecraft in November 2009. Image Credits: NASA/JPL-Caltech/Space Science Institute. Lō`ihi is an especially good place to test predictions about seafloor hydrothermal systems and their ability to support life. Previous research focused more on locations where tectonic plates come together, but the Lō`ihi seamount involves molten magma erupting from the middle of one of these plates. This is the type of volcanic activity scientists think could be similar to seafloor volcanoes that may exist on Europa and Enceladus. The zones where plates meet may actually be too hot to provide a realistic representation of hydrothermal activity on the moons of Jupiter and Saturn. Throughout the 2018 SUBSEA expedition aboard the vessel Nautilus, the team’s scientists from NASA, the National Oceanic and Atmospheric Administration and various academic institutions will study the conditions around Lō`ihi’s seafloor springs across a range of pressures and temperatures. What they learn here will increase our understanding of the potential for conditions that could support life forms on other ocean worlds. Learn more: Systematic Underwater Biogeochemical Science and Exploration Analog (SUBSEA): https://www.nasa.gov/ames/subsea Images (mentioned), Text, Credits: NASA/Abigail Tabor. Best regards, Orbiter.ch Full article

Apollo 9

Hubble Sees Spiral in Andromeda

NASA - Hubble Space Telescope patch. Feb. 10, 2017

The Andromeda constellation is one of the 88 modern constellations and should not be confused with our neighboring Andromeda Galaxy. The Andromeda constellation is home to the pictured galaxy known as NGC 7640. Many different classifications are used to identify galaxies by shape and structure — NGC 7640 is a barred spiral type. These are recognizable by their spiral arms, which fan out not from a circular core, but from an elongated bar cutting through the galaxy’s center. Our home galaxy, the Milky Way, is also a barred spiral galaxy. NGC 7640 might not look much like a spiral in this image, but this is due to the orientation of the galaxy with respect to Earth — or to Hubble, which acted as photographer in this case! We often do not see galaxies face on, which can make features such as spiral arms less obvious. There is evidence that NGC 7640 has experienced some kind of interaction in its past. Galaxies contain vast amounts of mass, and therefore affect one another via gravity. Sometimes these interactions can be mild, and sometimes hugely dramatic, with two or more colliding and merging into a new, bigger galaxy. Understanding the history of a galaxy, and what interactions it has experienced, helps astronomers to improve their understanding of how galaxies — and the stars within them — form. For images and more information about Hubble, visit: http://hubblesite.org/ http://www.nasa.gov/hubble http://www.spacetelescope.org/ Image, Text, Credits: ESA/Hubble & NASA/Text Credits: European Space Agency/NASA/Karl Hille. Best regards, Orbiter.ch Full article

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Star Bubble