Last Update

2016-08-31T00:00:00.000Z

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Wrong Karl Stapelfeldt?

Dr. Karl R. Stapelfeldt

Direct Phone: (301) ***-****       

Email: k***@***.gov

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National Aeronautics and Space Administration (NASA)

21000 Brookpark Rd.

Cleveland, Ohio 44135

United States

Company Description

NASA's Goddard Space Flight Center is home to the nation's largest organization of combined scientists, engineers and technologists that build spacecraft, instruments and new technology to study Earth, the sun, our solar system and the universe. Named for ... more

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Background Information

Employment History

Member, Goddard Space Flight Center

NASA/JPL-Caltech

Scientist At Jet Propulsion Laboratory

Goddard Space Flight Center

Education

Ph.D.

astronomy

California Institute of Technology

Web References (89 Total References)


The Space Review: Debating the future of exoplanet missions concepts and community

www.thespacereview.com [cached]

"Even if we don't get to fly this mission, we've done the community a service by showing that there does exist at least one probe mission concept in this $1 billion cost cap level," Stapelfeldt said.

...
"We have come up with what Paul Hertz asked us to do, which is to come up with a probe mission at the cost cap of $1 billion," said Karl Stapelfeldt of NASA Goddard in a presentation about Exo-C at the ExoPAG meeting.
An independent cost estimate of an earlier iteration of the mission concept, performed by the Aerospace Corporation in September, came out to be $1.1 billion, he said. An updated design, submitted to Aerospace for costing in December, should be less, he said.
Exo-C would make use of the Kepler spacecraft bus, equipped with a 1.4-meter telescope and a coronagraph to allow direct imaging of exoplanets. The use of the Kepler-heritage technology, plus a launch on a SpaceX Falcon 9 rocket, allows the mission to fit into the $1 billion cost cap, he said. "Even if we don't get to fly this mission, we've done the community a service by showing that there does exist at least one probe mission concept in this $1 billion cost cap level," Stapelfeldt said.


"For a planet in a binary ...

www.sushituesday.com [cached]

"For a planet in a binary system, location is everything," said co-author Karl Stapelfeldt of NASA's Jet Propulsion Laboratory in Pasadena, Calif.


Another group, led by Karl ...

gulfnews.com [cached]

Another group, led by Karl Stapelfeldt of NASA's Goddard Space Flight Center, is studying a method known as a coronagraph, in which the occulting disk is inside the telescope.


Space Exploration: Planets thrive around stellar twins

www.memphisgeology.org [cached]

"For a planet in a binary system, location is everything," said co-author Karl Stapelfeldt of NASA's Jet Propulsion Laboratory in Pasadena, Calif.


Filters News | Filters Blog

www.membrane-solutions.com [cached]

We don't know how to form water desalination something out there," astronomer Karl Stapelfeldt of NASA's Goddard Space Flight Center in Greenbelt, Md., said on June 14 at the 220th Meeting of the American Astronomical Society.

Stapelfeldt and a team led by John Krist of the Jet Propulsion Laboratory in Pasadena, Calif., used the Hubble Space Telescope to study 10 stars suspected of hosting large debris disks.
...
This planet hasn't yet been observed, but Stapelfeldt speculates that it might be several times more massive than Jupiter. "You can't get a structure like this, and have it last for a long period of time, unless something keeps all the particles' orbits lined up," he said.
...
But, Stapelfeldt says, that process would have had to be unusually gentle. "If you did something violent and you threw the planet out there, its gravity would tear up the ring," he said.

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