[Spacetalk] https://www.nasa.gov/index.html https://spaceflightnow.com

Tue Oct 31 23:31:38 CDT 2017

Good Morning all,

I hope you had a wonderful Halloween with the kids…I know so many schools let the kids and teachers dress up with lots of parties to make it such a fun day…and with so many very creative teachers….such happy memories for the kids…I want to get this off as it is getting late….please think about signing the kids up for the mission to Mars...a great way to get them to follow the mission and let their minds take them any where….also Space X had another successful launch and landing….if you can find a few minutes, I hope you will share it with the kids….it is the beginning of such amazing new adventures and it would be wonderful if they can share…… wishing you all a wonderful day…. we have to always remember to do our best, enjoy everything we do, live in the present, be appreciative of the good in our lives, make each day special, smile & have fun! Gabe

LAST Chance to Put Your Name on Mars
https://www.nasa.gov/feature/jpl/another-chance-to-put-your-name-on-mars 
 <https://www.nasa.gov/sites/default/files/thumbnails/image/name_chip_main-opt.jpg>
NASA's InSight lander will travel to Mars next year. When it does, it will be carrying two microchips bearing the names of members of the public.
Credits: NASA/JPL-Caltech
 <applewebdata://C239C324-33EC-47B4-A68E-65ED9F162178>
 <https://www.nasa.gov/sites/default/files/thumbnails/image/name_chip_2.jpg>
An example of a "boarding pass" that members of the public can download by participating in NASA's Frequent Fliers program. With each NASA mission that flies their names, individuals can accumulate "miles" on their boarding pass.
Credits: NASA/JPL-Caltech
When it lands on Mars in November of 2018, NASA's InSight lander will be carrying several science instruments -- along with hundreds of thousands of names from members of the public.

In 2015, nearly 827,000 people signed up to add their names to a silicon microchip onboard the robotic spacecraft. NASA is now adding a second microchip, giving the public another chance to send their names to Mars.
New submissions will be accepted through Nov. 1, 2017, at the following link: https://mars.nasa.gov/syn/insight <https://mars.nasa.gov/syn/insight>
"Mars continues to excite space enthusiasts of all ages," said Bruce Banerdt, the InSight mission's principal investigator at NASA's Jet Propulsion Laboratory in Pasadena, California. "This opportunity lets them become a part of the spacecraft that will study the inside of the Red Planet.” This fly-your-name opportunity comes with "frequent flier" points reflecting an individual's personal participation in NASA's exploration of Mars. These points span multiple missions and multiple decades. Participants who sent their names on the previous InSight opportunity in 2015 can download a "boarding pass" and see their "frequent flier" miles. As part of this frequent flier program, a chip carrying the names of 1.38 million people also flew aboard the first flight of NASA's Orion spacecraft in 2014. NASA is building Orion to carry astronauts to deep space destinations that will enable future missions to Mars. After InSight, the next opportunity to earn frequent flier points will be NASA's Exploration Mission-1, the first flight bringing together the Space Launch System rocket and Orion spacecraft to travel thousands of miles beyond the Moon in preparation for human missions to Mars and beyond. InSight will be the first mission to explore Mars' deep interior. The spacecraft will set down a seismometer to detect marsquakes and meteor strikes, using the seismic energy of these phenomena to study material far below the Martian surface. It also will deploy a self-hammering heat probe that will burrow deeper into the ground than any previous device on the Red Planet. These and other InSight investigations will improve our understanding about the formation and evolution of all rocky planets, including Earth. InSight is scheduled to launch from Vandenberg Air Force Base, California, in May of 2018. For more information on InSight, visit: https://nasa.gov/insight <https://nasa.gov/insight>

SpaceX Aces Another Rocket Landing After Launching Korean Satellite <http://click.emails.purch.com/?qs=a9d8de30f631cc56bebb75ceb9e4f42d0633f4dfaaf273286ce68409a107a9af0186423ec6cf21943e26d476f49939211c8e647527344f9f2a694db733091a48>

https://www.space.com/38609-spacex-launches-koreasat-5a-satellite-lands-rocket.html?utm_source=sdc-newsletter&utm_medium=email&utm_campaign=20171031-sdc 

NuSTAR Probes Black Hole Jet Mystery
 <https://www.nasa.gov/sites/default/files/thumbnails/image/blackhole2017103-opt.jpg>
This artist’s concept shows a black hole with an accretion disk -- a flat structure of material orbiting the black hole – and a jet of hot gas, called plasma.
Credits: NASA/JPL-Caltech
Larger view <http://www.jpl.nasa.gov/images/nustar/20171030/nustar20171030.jpg>
Black holes are famous for being ravenous eaters, but they do not eat everything that falls toward them. A small portion of material gets shot back out in powerful jets of hot gas, called plasma, that can wreak havoc on their surroundings. Along the way, this plasma somehow gets energized enough to strongly radiate light, forming two bright columns along the black hole’s axis of rotation. Scientists have long debated where and how this happens in the jet. Astronomers have new clues to this mystery. Using NASA's NuSTAR space telescope and a fast camera called ULTRACAM on the William Herschel Observatory in La Palma, Spain, scientists have been able to measure the distance that particles in jets travel before they "turn on" and become bright sources of light. This distance is called the "acceleration zone." The study is published in the journal Nature Astronomy. Scientists looked at two systems in the Milky Way called "X-ray binaries," each consisting of a black hole feeding off of a normal star. They studied these systems at different points during periods of outburst -- which is when the accretion disk -- a flat structure of material orbiting the black hole -- brightens because of material falling in. One system, called V404 Cygni, had reached nearly peak brightness when scientists observed it in June 2015. At that time, it experienced the brightest outburst from an X-ray binary seen in the 21st century. The other, called GX 339-4, was less than 1 percent of its maximum expected brightness when it was observed. The star and black hole of GX 339-4 are much closer together than in the V404 Cygni system. Despite their differences, the systems showed similar time delays – about one-tenth of a second -- between when NuSTAR first detected X-ray light and ULTRACAM detected flares in visible light slightly later. That delay is less than the blink of an eye, but significant for the physics of black hole jets. "One possibility is that the physics of the jet is not determined by the size of the disc, but instead by the speed, temperature and other properties of particles at the jet’s base," said Poshak Gandhi, lead author of the study and astronomer at the University of Southampton, United Kingdom. The best theory scientists have to explain these results is that the X-ray light originates from material very close to the black hole. Strong magnetic fields propel some of this material to high speeds along the jet. This results in particles colliding near light-speed, energizing the plasma until it begins to emit the stream of optical radiation caught by ULTRACAM. Where in the jet does this occur? The measured delay between optical and X-ray light explains this. By multiplying this amount of time by the speed of the particles, which is nearly the speed of light, scientists determine the maximum distance traveled. This expanse of about 19,000 miles (30,000 kilometers) represents the inner acceleration zone in the jet, where plasma feels the strongest acceleration and "turns on" by emitting light. That's just under three times the diameter of Earth, but tiny in cosmic terms, especially considering the black hole in V404 Cygni weighs as much as 3 million Earths put together. "Astronomers hope to refine models for jet powering mechanisms using the results of this study," said Daniel Stern, study co-author and astronomer based at NASA's Jet Propulsion Laboratory, Pasadena, California. Making these measurements wasn't easy. X-ray telescopes in space and optical telescopes on the ground have to look at the X-ray binaries at exactly the same time during outbursts for scientists to calculate the tiny delay between the telescopes' detections. Such coordination requires complex planning between the observatory teams. In fact, coordination between NuSTAR and ULTRACAM was only possible for about an hour during the 2015 outburst, but that was enough to calculate the groundbreaking results about the acceleration zone. The results also appear to connect with scientists' understanding of supermassive black holes, much bigger than the ones in this study. In one supermassive system called BL Lacertae, weighing 200 million times the mass of our Sun, scientists have inferred time delays millions of times greater than what this study found. That means the size of the acceleration area of the jets is likely related to the mass of the black hole. "We are excited because it looks as though we have found a characteristic yardstick related to the inner workings of jets, not only in stellar-mass black holes like V404 Cygni, but also in monster supermassive ones," Gandhi said. The next steps are to confirm this measured delay in observations of other X-ray binaries, and to develop a theory that can tie together jets in black holes of all sizes.   "Global ground and space telescopes working together were key to this discovery. But this is only a peek, and much remains to be learned. The future is really bright for understanding the extreme physics of black holes," said Fiona Harrison, principal investigator of NuSTAR and professor of astronomy at Caltech in Pasadena. NuSTAR is a Small Explorer mission led by Caltech and managed by JPL for NASA's Science Mission Directorate in Washington. NuSTAR was developed in partnership with the Danish Technical University and the Italian Space Agency (ASI). The spacecraft was built by Orbital Sciences Corp., Dulles, Virginia. NuSTAR's mission operations center is at UC Berkeley, and the official data archive is at NASA's High Energy Astrophysics Science Archive Research Center. ASI provides the mission's ground station and a mirror archive. Caltech manages JPL for NASA. For more information on NuSTAR, visit: https://www.nasa.gov/nustar <http://www.nasa.gov/nustar> http://www.nustar.caltech.edu <http://www.nustar.caltech.edu/>
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