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  2. Stingray Nebula - Wikipedia

    en.wikipedia.org/wiki/Stingray_Nebula

    The Stingray Nebula (Hen 3-1357) is the youngest-known planetary nebula, having appeared in the 1980s. [2] The nebula is located in the direction of the southern constellation Ara (the Altar), and is located 18,000 light-years (5,600 parsecs ) away.

  3. Comparison of orbital launch systems - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_orbital...

    Falcon 9 Block 5, the most prolific active orbital launch system in the world. This comparison of orbital launch systems lists the attributes of all current and future individual rocket configurations designed to reach orbit. A first list contains rockets that are operational or have attempted an orbital flight attempt as of 2024; a second list ...

  4. Comparison of orbital launcher families - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_orbital...

    The related article "Comparison of orbital launch systems" lists each individual launcher system within any given launcher family, categorized by its current operational status. This article does not include suborbital launches (i.e. flights which were not intended to reach LEO or VLEO).

  5. Space Launch System - Wikipedia

    en.wikipedia.org/wiki/Space_Launch_System

    The Space Launch System (SLS) is an American super heavy-lift expendable launch vehicle used by NASA.As the primary launch vehicle of the Artemis Moon landing program, SLS is designed to launch the crewed Orion spacecraft on a trans-lunar trajectory.

  6. Exploration Ground Systems - Wikipedia

    en.wikipedia.org/wiki/Exploration_Ground_Systems

    NASA's Exploration Ground Systems (EGS) Program is one of three programs based at NASA's Kennedy Space Center in Florida. EGS was established to develop and operate the systems and facilities necessary to process and launch rockets and spacecraft during assembly, transport and launch. [1]

  7. List of largest nebulae - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_nebulae

    The Ring Nebula is located in the lower right of the image Gum Nebula: 809–950 ly (248–291 pc) [16] [17] Emission nebula: Extends about 36° of the sky Bubble Nebula (NGC 6822) 758 ly (232 pc) [18] [19] [20] H II region: The Bubble Nebula is located in the upper left of the image NGC 6188: 600 ly (180 pc) [21] Emission nebula: NGC 592

  8. Delta Cryogenic Second Stage - Wikipedia

    en.wikipedia.org/wiki/Delta_Cryogenic_Second_Stage

    The Delta Cryogenic Second Stage (DCSS) is a family of cryogenic-fuelled rocket stages used on the Delta III, Delta IV, and on the Space Launch System Block 1 launch vehicles. The DCSS employs a unique two-tank architecture where the cylindrical liquid hydrogen (LH 2 ) tank carries payload launch loads and forms the upper section.

  9. National Launch System - Wikipedia

    en.wikipedia.org/wiki/National_Launch_System

    The National Launch System (or New Launch System) was a study authorized in 1991 by President George H. W. Bush to outline alternatives to the Space Shuttle for access to Earth orbit. [1] Shortly thereafter, NASA asked Lockheed Missiles and Space , McDonnell Douglas , and TRW to perform a ten-month study.