2018 May 27 Coronal Rain on the Sun Video Credit: Solar…

2018 May 27

Coronal Rain on the Sun
Video Credit: Solar Dynamics Observatory, SVS, GSFC, NASA; Music: Thunderbolt by Lars Leonhard

Explanation: Does it rain on the Sun? Yes, although what falls is not water but extremely hot plasma. An example occurred in mid-July 2012 after an eruption on the Sun that produced both a Coronal Mass Ejection and a moderate solar flare. What was more unusual, however, was what happened next. Plasma in the nearby solar corona was imaged cooling and falling back, a phenomenon known as coronal rain. Because they are electrically charged, electrons, protons, and ions in the rain were gracefully channeled along existing magnetic loops near the Sun’s surface, making the scene appear as a surreal three-dimensional sourceless waterfall. The resulting surprisingly-serene spectacle is shown in ultraviolet light and highlights matter glowing at a temperature of about 50,000 Kelvin. Each second in the featured time lapse video takes about 6 minutes in real time, so that the entire coronal rain sequence lasted about 10 hours. Recent observations have confirmed that that coronal rain can also occur in smaller loops for as long as 30 hours.

∞ Source: apod.nasa.gov/apod/ap180527.html

Alan Bean, Apollo Moonwalker and Artist, Dies at 86

Rest In Peace.

May 26, 2018

Bean, the lunar module pilot on Apollo 12 and commander of the second crewed Skylab mission, died in Houston on Saturday, May 26, 2018.

“Alan Bean once said ‘I have the nicest life in the world,’ ” said NASA Administrator Jim Bridenstine. “It’s a comforting sentiment to recall as we mourn his passing.”

Astronaut Alan Bean. Image Credit: NASA

Alan Bean walked on the moon on Apollo 12, commanded the second Skylab crew and then resigned after 18 years as an astronaut to paint the remarkable worlds and sights he had seen.

Bean was lunar module pilot on the November 1969 Apollo 12 mission, the second moon landing.  He and mission commander Pete Conrad explored on the lunar Ocean of Storms and set up several experiments powered by a small nuclear generator.

“As all great explorers are, Alan was a boundary pusher,” NASA Administrator Jim Bridenstine said in a statement. “Rather than accepting the limits of technology, science, and even imagination, he sought to advance those lines — in all his life’s endeavors.


Administrator Bridenstine’s full statement on the passing of Alan Bean: https://www.nasa.gov/press-release/nasa-administrator-reflects-on-legacy-record-breaking-skylab-apollo-astronaut

Bean family’s statement: https://www.nasa.gov/press-release/family-release-regarding-the-passing-of-apollo-skylab-astronaut-alan-bean

JSC Center Director Mark Geyer’s statement: https://www.nasa.gov/feature/statement-of-jsc-center-director-mark-geyer-on-the-passing-of-alan-bean

In an interview for NASA’s 50th anniversary in 2008, Bean said walking on the moon was one of the most fun things he had done.

“At one-sixth gravity in that suit, you have to move in a different way,” he said. “One of the paintings that I did was called ‘Tip Toeing on The Ocean of Storms.’ And it shows that I’m up on my tip toes as I’m moving around. And we did that a lot. On Earth, I weighed 150 pounds; my suit and backpack weighed another 150. 300 pounds. Up there, I weighed only 50. So I could prance around on my toes. It was quite easy to do. And if you remember back to some of the television we saw, Buzz and Neil on the Moon with Apollo 11. Black and white. They were bouncing around a lot. They were really bouncing on their tip toes. Quite fun to do. Someday maybe be a great place for a vacation.”

Astronaut Alan Bean: Moonwalker, Skylab Commander, Artist

Video above: NASA remembers Apollo 12 astronaut Alan Bean, who walked on the Moon in 1969, commanded the second Skylab crew in 1973 and went on in retirement to paint the remarkable worlds and sights he had seen like no other artist. Video Credit: NASA.

As spacecraft commander of the Skylab II mission II, from July 19 to Sept. 25, 1973, Bean and fellow crewmembers Owen K. Garriott and Jack R. Lousma accomplished half again as much as pre-mission goals. Their 59-day, 24.4-million-mile flight was a world record.

Astronaut Alan Bean

Video above: NASA X interviews Alan Bean, who turned to painting full-time after retiring from NASA. Video Credit: NASA.

Alan L. Bean was born in Wheeler, Texas.  He graduated from Paschal High School in Fort Worth, Texas. In 1955, Bean was awarded an aeronautical engineering degree from the University of Texas.

He was a Navy ROTC student there and was commissioned when he graduated.  After he finished flight training, he spent four years with a jet attack squadron and then attended Navy test pilot school.

Bean flew as a test pilot on several types of aircraft before he was selected with the third group of NASA astronauts in October 1963.  He served as a backup for crewmembers on Gemini 10 and Apollo 9.

After his Apollo and Skylab flights, Bean remained with NASA while many of his astronaut colleagues went elsewhere as the Apollo program wound down.  He served as a backup spacecraft commander for the last Apollo flight, the Apollo-Soyuz Test Project in July 1975.

He retired from the Navy as a captain in October 1975 but continued to work with NASA as a civilian. He headed the Astronaut Office’s Astronaut Candidate Operations and Training Group at Johnson Space Center.

Image above: Astronaut Alan Bean, Skylab 3 commander, flies the M509 Astronaut Maneuvering Equipment in the forward dome area of the Orbital Workshop on the space station cluster in Earth orbit. Bean is strapped into the back mounted, hand-controlled Automatically Stabilized Maneuvering Unit (ASMU). The dome area is about 22 feet in diameter and 19 feet from top to bottom. Image Credit: NASA.

Bean logged 1,672 hours in space, including more than 10 hours of spacewalks on the moon and in Earth orbit. He flew 27 aircraft types and accumulated more than 7,145 hours of flight time, 4,890 hours of it in jets.

During his career he established 11 records in space and aeronautics, and received many awards and honors.

Among those awards were two NASA distinguished service medals, two Navy Distinguished Service Medals, the Rear Admiral William S. Parsons Award for Scientific and Technical Progress, the Robert J. Collier Trophy, the Federation Aeronautique Internationale’s Yuri Gagarin Gold Medal, the V.M. Komarov diploma, the Robert H. Patuxent River Goddard Gold Medal, the AIAA Octave Chanute Award and the ASA Flight Achievement Award.

His decision to retire from NASA to devote full time to painting was, he said, based on his 18 years as an astronaut, during which he visited places and saw things no artist’s eye had ever seen firsthand.  He said he hoped to capture those experiences through his art.

He followed that dream for many years at his home studio in Houston, with considerable success. His paintings were particularly popular among space enthusiasts.

Related links:

Apollo 12: https://history.nasa.gov/afj/ap12fj/index.html

Alan Bean interviews with the JSC Oral History project: https://www.jsc.nasa.gov/history/oral_histories/BeanAL/beanal.htm

Images (mentioned), Videos (mentioned), Text, Credits: NASA/Brian Dunbar.

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