Andromedasbitch-blog - Spacey

Aboard the International Space Station this morning, Astronaut Kimiya Yui of the Japan Aerospace Exploration Agency (JAXA) successfully captured JAXA’s Kounotori 5 H-II Transfer Vehicle (HTV-5) at 6:28 a.m. EDT.

Yui commanded the station’s robotic arm, Canadarm2, to reach out and grapple the HTV-5, while NASA astronauts Kjell Lindgren provided assistance and Scott Kelly monitored HTV-5 systems. The HTV-5 launched aboard an H-IIB rocket at 7:50 a.m. Wednesday, Aug. 19, from the Tanegashima Space Center in southern Japan. Since then, the spacecraft has performed a series of engine burns to fine-tune its course for arrival at the station.

The HTV-5 is delivering more than 8,000 pounds of equipment, supplies and experiments in a pressurized cargo compartment. The unpressurized compartment will deliver the 1,400-pound CALorimetric Electron Telescope (CALET) investigation, an astrophysics mission that will search for signatures of dark matter and provide the highest energy direct measurements of the cosmic ray electron spectrum.

Below is a breathtaking image shared by Astronaut Scott Kelly of the HTV-5 and Canadarm2, which reached out and grappled the cargo spacecraft.

631 Exposures Blended - Cloverdale, CA

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Here’s something for you to start the week off with a bang. This is a computer simulation of a supernova event, the moments when a massive star collapses in on itself to evolve into a neutron star. The violent and knobbly shock wave from the collapse expands out in a fraction of a second, with the coldest gas in the model colored blue and the hottest colored red. Ejected stellar material moves away from the core at speeds that can reach almost 19,000 miles per second.

The simulation was created in 2012 by the Simulating eXtreme Spacetimes (SXS) Project. Now, direct observations of a supernova called 1987A using NASA’s Nuclear Spectroscopic Telescope Array has confirmed a detail found in the model–that the collapse leads to a lopsided ejection of debris in one direction and the stellar core into another. 

Read more from Caltech about how models predicted that perfectly spherical star cores evolve into asymmetric blobs with plumes of broiling hot gasses powered by neutrino emissions. 

(Hubble Space Telescope captured supernova 1987A with a bright ring of material ejected from the dying star before it detonated. The ring is being lit up by the explosion’s shock wave.Credit: ESA/Hubble & NASA.)

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