Young Stars of NGC 346

The massive stars of NGC 346 are short lived, but very energetic. The star cluster is embedded in the largest star forming region in the Small Magellanic Cloud, some 210,000 light-years distant. Their winds and radiation sweep out an interstellar cavern in the gas and dust cloud about 200 light-years across, triggering star formation and sculpting the region’s dense inner edge. Cataloged as N66, the star forming region also appears to contain a large population of infant stars. A mere 3 to 5 million years old and not yet burning hydrogen in their cores, the infant stars are strewn about the embedded star cluster. In this false-color Hubble Space Telescope image, visible and near-infrared light are seen as blue and green, while light from atomic hydrogen emission is red. via NASA https://ift.tt/8yulKFJ

Gravity s Grin

Albert Einstein’s general theory of relativity, published over 100 years ago, predicted the phenomenon of gravitational lensing. And that’s what gives these distant galaxies such a whimsical appearance, seen through the looking glass of X-ray and optical image data from the Chandra and Hubble space telescopes. Nicknamed the Cheshire Cat galaxy group, the group’s two large elliptical galaxies are suggestively framed by arcs. The arcs are optical images of distant background galaxies lensed by the foreground group’s total distribution of gravitational mass. Of course, that gravitational mass is dominated by dark matter. The two large elliptical „eye“ galaxies represent the brightest members of their own galaxy groups which are merging. Their relative collisional speed of nearly 1,350 kilometers/second heats gas to millions of degrees producing the X-ray glow shown in purple hues. Curiouser about galaxy group mergers? The Cheshire Cat group grins in the constellation Ursa Major, some 4.6 billion light-years away. via NASA https://ift.tt/xnOoZpM

NGC 6334: The Cats Paw Nebula

Nebulas are perhaps as famous for being identified with familiar shapes as perhaps cats are for getting into trouble. Still, no known cat could have created the vast Cat’s Paw Nebula visible toward the constellation of the Scorpion (Scorpius. At 5,500 light years distant, Cat’s Paw is an emission nebula with a red color that originates from an abundance of ionized hydrogen atoms. Alternatively known as the Bear Claw Nebula and cataloged as NGC 6334, stars nearly ten times the mass of our Sun have been born there in only the past few million years. Pictured here is a deep field image of the Cat’s Paw Nebula in light emitted by hydrogen, oxygen, and sulfur. via NASA https://ift.tt/C39Vzhc

NASA, Boeing to Discuss Readiness of Uncrewed Flight Test

NASA and Boeing will hold a media teleconference at about 6 p.m. EDT on Wednesday, May 11, following the Flight Readiness Review for the agency’s Boeing Orbital Flight Test-2 (OFT-2), the second uncrewed flight test of the company’s CST-100 Starliner spacecraft for the agency’s Commercial Crew Program.

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NASA’s SpaceX Crew-3 to Discuss Mission After Returning to Earth

Astronauts of NASA’s SpaceX Crew-3 mission, including crew members from NASA and ESA (European Space Agency), will answer questions about their recent mission aboard the International Space Station during a post-splashdown news conference at 11:45 a.m. EDT Wednesday, May 11.

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A View of Earth From the Space Station

NASA astronaut Jessica Watkins floats in the space station’s cupola, a direct nadir viewing window from which Earth and celestial objects are visible. via NASA https://ift.tt/kwKq3XG