Results 21 to 30 of about 3,068 (209)
Unique conjunction of planetary probes [PDF]
Eos, Transactions American Geophysical Union, 2000 The last two of the large planetary probes of the National Aeronautic and Space Administration and the European Space Agency will rendezvous at the end of the year at Jupiter. At that time, Galileo, which has been exploring Jupiter since the end of 1995, and Cassini, which is on its way to Saturn, will simultaneously observe the Jovian system with U.S.‐
E. Grün +3 more
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Survey on Unmanned Aerial Vehicle for Mars Exploration: Deployment Use Case
Drones, 2021 In recent years, the area of Unmanned Aerial Vehicles (UAVs) has seen rapid growth. There has been a trend to build and produce UAVs that can carry out planetary exploration throughout the past decade.
Manjula Sharma +4 more
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Mathematics, 2022 With the development of aerospace science and technology, more and more probes are expected to be deployed around extraterrestrial planets. In this paper, some special orbits around Jupiter, Saturn, Uranus, and Neptune are discussed and analyzed.
Biao Yang +7 more
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The Planetary Science Journal, 2023 The NASA’s Double-Asteroid Redirection Test (DART) was a unique planetary defence and technology test mission, the first of its kind. The main spacecraft of the DART mission impacted the target asteroid Dimorphos, a small moon orbiting the asteroid ...
Agata Rożek +28 more
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Masers as probes of proto-planetary discs [PDF]
Symposium - International Astronomical Union, 2004 Water maser emission from star forming regions has been monitored for several decades using the Puschino radio telescope, showing radial velocity variations consistent with material in Keplerian orbit around protostars. MERLIN and the EVN are now being used to image the 22 GHz emission on au scales and measure proper motions.
Richards, A. M. S. +7 more
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PLANETARY CARTOGRAPHY AND MAPPING: WHERE WE ARE TODAY, AND WHERE WE ARE HEADING FOR? [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017 Planetary Cartography does not only provides the basis to support planning (e.g., landing-site selection, orbital observations, traverse planning) and to facilitate mission conduct during the lifetime of a mission (e.g., observation tracking and hazard ...
A. Naß +12 more
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Planetary heat flow from shallow subsurface measurements: Mars [PDF]
, 2016 Planetary heat flow probes measure heat flow (depth-resolved temperature and thermal conductivity) to provide insight into the internal state of a planet.
Cornwall, Marc, Hagermann, Axel
core +1 more source
Aerospace, 2022 To solve the problem of high-precision optical navigation for the descent landing of lunar and planetary probes, an optical navigation method based on the spatial position distribution model is proposed.
Rongjun Mu +3 more
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Using the transit of Venus to probe the upper planetary atmosphere [PDF]
Nature Communications, 2015 AbstractDuring a planetary transit, atoms with high atomic number absorb short-wavelength radiation in the upper atmosphere, and the planet should appear larger during a primary transit observed in high-energy bands than in the optical band. Here we measure the radius of Venus with subpixel accuracy during the transit in 2012 observed in the optical ...
Reale, Fabio +5 more
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Planetary nebulae as probes of dark matter in NGC 3384 [PDF]
The Astrophysical Journal, 1995 We have obtained radial velocities of 68 planetary nebulae surrounding the SB0 galaxy NGC 3384 in the Leo I group, using the CTIO 4 m telescope and the Rutgers Fabry-Perot interferometer. The PN system exhibits a well-ordered rotation field aligned with the photometric axes of the galaxy. The rotation curve is flat from about 2 kpc until at least 7 kpc.
Tremblay, Benoit +2 more
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