Results 51 to 60 of about 92,259 (150)

Exploration of the solar system [PDF]

A sourcebook of information on the solar system and the technology used for its exploration is presented. An outline of the potential achievements of solar system exploration is given along with a course of action which maximizes the rewards to ...
Grey, J., Henderson, A., Jr.
core   +1 more source

Formation and Migration of Trans-Neptunian Objects - Proceedings of the conference "Scientific Frontiers in Research of Extrasolar Planets" [PDF]

ASP Conf.Ser.294:349-353,2003, 2002
Some large trans-Neptunian objects could be formed by the compression of rarefied dust condensations, but not by the accumulation of smaller planetesimals. A considerable portion of near-Earth objects could have come from the trans-Neptunian region. Our runs of the evolution of thousands orbits of Jupiter-family comets under the gravitational influence
arxiv  

Whitefly-Transmitted Viruses of Cucurbits in the Southern United States. [PDF]

Viruses, 2023
Devendran R, Kavalappara SR, Simmons AM, Bag S.   +3 more
europepmc   +1 more source

Future Exploration of the Outer Heliosphere and Very Local Interstellar Medium by Interstellar Probe. [PDF]

Space Sci Rev, 2023
Brandt PC, Provornikova E, Bale SD, Cocoros A, DeMajistre R, Dialynas K, Elliott HA, Eriksson S, Fields B, Galli A, Hill ME, Horanyi M, Horbury T, Hunziker S, Kollmann P, Kinnison J, Fountain G, Krimigis SM, Kurth WS, Linsky J, Lisse CM, Mandt KE, Magnes W, McNutt RL, Miller J, Moebius E, Mostafavi P, Opher M, Paxton L, Plaschke F, Poppe AR, Roelof EC, Runyon K, Redfield S, Schwadron N, Sterken V, Swaczyna P, Szalay J, Turner D, Vannier H, Wimmer-Schweingruber R, Wurz P, Zirnstein EJ.   +42 more
europepmc   +1 more source

Solid rocket technology advancements for space tug and IUS applications [PDF]

In order for the shuttle tug or interim upper stage (IUS) to capture all the missions in the current mission model for the tug and the IUS, an auxiliary or kick stage, using a solid propellant rocket motor, is required.
Ascher, W., Bailey, R. L., Behm, J. W., Gin, W.   +3 more
core   +1 more source

Early application of solar electric propulsion to a 1-astronomical-unit out-of-the-ecliptic mission [PDF]

Solar electric propulsion for out-of-ecliptic solar orbit ...
Hrach, F. J., Strack, W. C.
core   +1 more source

Migration of Jupiter-family comets and resonant asteroids to near-Earth space [PDF]

arXiv, 2003
We estimated the rate of comet and asteroid collisions with the terrestrial planets by calculating the orbits of 13000 Jupiter-crossing objects (JCOs) and 1300 resonant asteroids and computing the probabilities of collisions based on random-phase approximations and the orbital elements sampled with a 500 yr step.
arxiv  

Alternative approach to the DART mission by the use of gravity assist maneuvers with the Moon and solar sails. [PDF]

Sci Rep, 2023
Ribeiro RS, Meireles LG, Prado AFBA, de Melo CF.   +3 more
europepmc   +1 more source

The NASA Suborbital Program: A status review [PDF]

The status of the NASA suborbital program is reviewed and its importance to astrophysical and geophysical programs is assessed. A survey of past scientific and developmental accomplishments, an examination of the trends in program costs, and an analysis ...
Reynolds, B., Teeter, R.
core   +1 more source

Newer advances in medical management of glaucoma. [PDF]

Indian J Ophthalmol, 2022
Mohan N, Chakrabarti A, Nazm N, Mehta R, Edward DP.   +4 more
europepmc   +1 more source