Results 31 to 40 of about 40,288 (103)

Space station needs, attributes and architectural options study. Volume 1: Executive summary [PDF]

Planetary explorations, Earth observations, space physics, astronomy-astrophysics, solar physics, life/biological/medical sciences, materials processing in space, communications, and technology development are addressed.

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Breakthrough Capability for the NASA Astrophysics Explorer Program: Reaching the Darkest Sky [PDF]

We describe a mission architecture designed to substantially increase the science capability of the NASA Science Mission Directorate (SMD) Astrophysics Explorer Program for all AO proposers working within the near-UV to far-infrared spectrum.
Benson, Scott W., Falck, Robert D., Fixsen, Dale J., Gardner, Joseph P., Garvin, James B., Greenhouse, Matthew A., Kruk, Jeffrey W., Oleson, Stephen R., Thronson, Harley A.   +8 more
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CHISL: The Combined High-resolution and Imaging Spectrograph for the LUVOIR Surveyor

, 2016
NASA is currently carrying out science and technical studies to identify its next astronomy flagship mission, slated to begin development in the 2020s. It has become clear that a Large Ultraviolet/Optical/IR (LUVOIR) Surveyor mission (primary diameter 12
Fleming, Brian, France, Kevin, Hoadley, Keri   +2 more
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Microlensing path parametrization for Earth-like Exoplanet detection around solar mass stars

, 2018
We propose a new parametrization of the impact parameter u0 and impact angle {\alpha} for microlensing systems composed by an Earth-like Exoplanet around a Solar mass Star at 1 AU.
de Almeida, L., Nascimento Jr, J. -D. do
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Starshade Rendezvous Probe [PDF]

The Starshade Rendezvous Probe Mission (https://smd-prod.s3.amazonaws.com/science-red/s3fs-public/atoms/files/Starshade2.pdf ) [1] will be the first space-based, high-contrast imaging mission with the potential to detect and characterize Earth-like ...
Booth, Jeff, Greenhouse, Matt, Kasdin, N. Jeremy, Lisman, Doug, Macintosh, Bruce, Seager, Sara, Shaklan, Stuart, Vess, Melissa, Warwick, Steve, Webb, David   +9 more
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The three-body problem

, 2014
The three-body problem, which describes three masses interacting through Newtonian gravity without any restrictions imposed on the initial positions and velocities of these masses, has attracted the attention of many scientists for more than 300 years ...
Musielak, Z. E., Quarles, B.
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Jupiter - Friend or Foe? IV: The influence of orbital eccentricity and inclination

, 2011
For many years, it was assumed that Jupiter prevented the Earth from being subject to a punishing impact regime that would greatly hinder the development of life. Here, we present the 4th in a series of studies investigating this hypothesis.
B. W. Jones, Horner, J. Horner, Laasko
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The K2 Mission: Characterization and Early results

, 2014
The K2 mission will make use of the Kepler spacecraft and its assets to expand upon Kepler's groundbreaking discoveries in the fields of exoplanets and astrophysics through new and exciting observations.
Aigrain, Suzanne, Barclay, Thomas, Bryson, Stephen T., Caldwell, Doug, Chaplin, William J., Cochran, William D., Fortney, Jonathan J., Haas, Michael, Howell, Steve B., Huber, Daniel, Marcy, Geoffrey W., Miglio, Andrea, Mullally, Fergal, Najita, Joan R., Smith, Marcie, Sobeck, Charlie, Still, Martin, Troeltzsch, John, Twicken, J. D.   +18 more
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Prediction of transits of solar system objects in Kepler/K2 images: An extension of the Virtual Observatory service SkyBoT

, 2016
All the fields of the extended space mission Kepler/K2 are located within the ecliptic. Many solar system objects thus cross the K2 stellar masks on a regular basis.
Berthier, J., Carry, B., Eggl, S., Santerne, A., Vachier, F.   +4 more
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La2010: A new orbital solution for the long term motion of the Earth

, 2011
We present here a new solution for the astronomical computation of the orbital motion of the Earth spanning from 0 to -250 Myr. The main improvement with respect to the previous numerical solution La2004 (Laskar et al.
A. Fienga, Bills, Boué, Correia, Correia, Darwin, Fienga, Fienga, Forte, H. Manche, Hays, Hilgen, J. Laskar, Jovane, Kuchynka, Laskar, Laskar, Laskar, Laskar, Laskar, Laskar, Laskar, Laskar, Laskar, Laskar, Laskar, Levrard, Lourens, Lourens, Lumb, M. Gastineau, Mignard, Olsen, Olsen, Poincaré, Pälike, Pälike, Pälike, Quinn, Rochester, Rubincam, Rubincam, Saha, Soffel, Sussman, van Dam, Varadi, Westerhold, Westerhold, Wisdom, Zachos   +50 more
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