Results 101 to 110 of about 1,653 (191)
Exploring the Interior Structure of (16) Psyche Through Basin‐Scale Collisions
Abstract Asteroid (16) Psyche, the largest member of the M/X‐type asteroids, may be the leftover core of a differentiated planetesimal. As such (16) Psyche will be explored in detail by NASA's discovery‐class Psyche mission in 2029. This will be the first mission to orbit a metal‐rich asteroid, or any asteroid in the 100–500 km size range.
Namya Baijal +7 more
wiley +1 more source
Abstract X‐ray amorphous sulfate hydrates are a substantial component (up to 23 wt%) of the sedimentary rocks and sands analyzed to date by the Mars Science Laboratory Curiosity rover at Gale crater. Recently, the CheMin X‐ray diffractometer observed the amorphization of the crystalline sulfate starkeyite (MgSO4 · 4H2O) upon exposure to the dry and ...
J. M. Meusburger +8 more
wiley +1 more source
Abstract Nowcasting and forecasting of the radiation environment in the Earth's lower atmosphere are critical for the safety of aircraft and spacecraft crews and passengers. Currently, this problem is addressed by employing statistical and physics‐based models that take into account particle transport and precipitation.
V. M. Sadykov +12 more
wiley +1 more source
FalconSEED: First Year Review of the Solid‐State Energetic Electron Detector in Geosynchronous Orbit
Abstract We present results from Space Test Program Satellite‐6 (STP Sat‐6) in geosynchronous orbit. The electron detector, named SEED (Solid‐state Energetic Electron Detector) is built entirely from commercial‐off‐the‐shelf (COTS) parts. The instrument data show the electron environment over the entire energy range of detection(14keV−146keV) $(14 ...
J. D. Williams +10 more
wiley +1 more source
Construction of small spacecraft clusters [PDF]
openaire +1 more source
Abstract Enhancing the accuracy of orbit predictions for low‐Earth orbit (LEO) satellites and debris is vitally important for satellite owner/operators dedicated to ensuring the safety and sustainability of the LEO environment. Presently, the largest source of error in orbit predictions stems from uncertainties in the estimation of thermospheric mass ...
D. J. Fitzpatrick +3 more
wiley +1 more source
Abstract A simulation of the 10 May 2024 geomagnetic storm is used to investigate the theory of cross polar cap potential (CPCP) saturation in Earth's magnetosphere‐ionosphere system. THEMIS B (ARTEMIS P1) satellite magnetic field and plasma measurements at lunar distance upstream in the solar wind drives the Space Weather Modeling Framework (SWMF) in ...
A. Brenner +7 more
wiley +1 more source
Abstract The magnetic Prandtl number in the slow solar wind is estimated by using magnetic and velocity Reynolds numbers. The Prandtl number quantifies the ratio of kinetic to magnetic diffusion rates in a plasma, and indicates which process dominates the transport dynamics in a fluid.
T. J. E. Hand +6 more
wiley +1 more source
Spectral Properties and Energy Injection in Mercury's Magnetotail Current Sheet
Abstract Mercury's magnetotail hosts a thin and highly dynamic current sheet (CS), where magnetic reconnection and strong fluctuations frequently occur. Here, we statistically analyze magnetic field power spectra across 370 magnetotail CSs observed by MESSENGER.
Xinmin Li +10 more
wiley +1 more source
We construct artificial "software" spacecraft consisting of magnetometers and 3D thermal and energetic ion detectors. Four such spacecraft are "flown" through a 1D simulation of a quasi-parallel shock.
J. Giacalone, S. J. Schwartz, D. Burgess
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