Pioneer 10 Flies by Jupiter

In this illustration by Rick Giudice from August 1973, the Pioneer 10 spacecraft passes by the gas giant planet Jupiter. via NASA https://ift.tt/sM7NcY1

Orion and the Ocean of Storms

A camera on board the uncrewed Orion spacecraft captured this view on December 5 as Orion approached its return powered flyby of the Moon. Below one of Orion’s extended solar arrays lies dark, smooth, terrain along the western edge of the Oceanus Procellarum. Prominent on the lunar nearside Oceanus Procellarum, the Ocean of Storms, is the largest of the Moon’s lava-flooded maria. The lunar terminator, shadow line between lunar night and day, runs along the left of the frame. The 41 kilometer diameter crater Marius is top center, with ray crater Kepler peeking in at the edge, just right of the solar array wing. Kepler’s bright rays extend to the north and west, reaching the dark-floored Marius. Of course the Orion spacecraft is now headed toward a December 11 splashdown in planet Earth’s water-flooded Pacific Ocean. via NASA https://ift.tt/IH7pJXP

NASA Awards Contract for Liquid Hydrogen

NASA has awarded a contract to Air Products and Chemicals, Inc. of Allentown, Pennsylvania, to supply up to 7.5 million pounds of liquid hydrogen to support operations at the agency’s Kennedy Space Center in Florida and the nearby Cape Canaveral Space Force Station.

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NGC 7293: The Helix Nebula

A mere seven hundred light years from Earth, toward the constellation Aquarius, a sun-like star is dying. The dying star’s last few thousand years have produced the Helix Nebula (NGC 7293), a well studied and nearby example of a Planetary Nebula, typical of this final phase of stellar evolution. Combining narrow band image data from emission lines of hydrogen atoms in red and oxygen atoms in blue-green hues, it shows tantalizing details of the Helix, including its bright inner region about 3 light-years across. The white dot at the Helix’s center is this Planetary Nebula’s hot, central star. A simple looking nebula at first glance, the Helix is now understood to have a surprisingly complex geometry. via NASA https://ift.tt/Pgckwbq