scholarly journals A Survey on Small Satellite Technologies and Space Missions for Geodetic Applications

2020 ◽  
Author(s):  
Vaios Lappas ◽  
Vassilis Kostopoulos
Keyword(s):  
Space Missions ◽  
Small Satellite

scholarly journals Very-Small-Satellite Design for Distributed Space Missions

2007 ◽  
Vol 44 (6) ◽  
pp. 1294-1306 ◽  
Author(s):  
David J. Barnhart ◽  
Tanya Vladimirova ◽  
Martin N. Sweeting
Keyword(s):  
Space Missions ◽  
Small Satellite ◽  
Satellite Design

Seti Space Missions

1997 ◽  
Vol 161 ◽  
pp. 761-776 ◽  
Author(s):  
Claudio Maccone
Keyword(s):  
Electromagnetic Waves ◽  
Space Missions ◽  
Gravitational Lens ◽  
The Sun ◽  
Space Antenna ◽  
Focal Distance ◽  
Large Space ◽  
The Earth ◽  
Space Antennas ◽  
New Space

AbstractSETI from space is currently envisaged in three ways: i) by large space antennas orbiting the Earth that could be used for both VLBI and SETI (VSOP and RadioAstron missions), ii) by a radiotelescope inside the Saha far side Moon crater and an Earth-link antenna on the Mare Smythii near side plain. Such SETIMOON mission would require no astronaut work since a Tether, deployed in Moon orbit until the two antennas landed softly, would also be the cable connecting them. Alternatively, a data relay satellite orbiting the Earth-Moon Lagrangian pointL2would avoid the Earthlink antenna, iii) by a large space antenna put at the foci of the Sun gravitational lens: 1) for electromagnetic waves, the minimal focal distance is 550 Astronomical Units (AU) or 14 times beyond Pluto. One could use the huge radio magnifications of sources aligned to the Sun and spacecraft; 2) for gravitational waves and neutrinos, the focus lies between 22.45 and 29.59 AU (Uranus and Neptune orbits), with a flight time of less than 30 years. Two new space missions, of SETI interest if ET’s use neutrinos for communications, are proposed.

Towards the Affective Cognition Approach to Human Performance in Space

2020 ◽  
Vol 91 (6) ◽  
pp. 532-534
Author(s):  
Nicola Mammarella
Keyword(s):  
Cognitive Performance ◽  
Cognitive Processing ◽  
Human Performance ◽  
Space Missions ◽  
Cognition And Emotion ◽  
Dynamic Relation ◽  
Interesting Pattern

INTRODUCTION: In recent decades, there has been investigation into the effects of microgravity and microgravity-like environments on cognition and emotion separately. Here we highlight the need of focusing on emotion-cognition interactions as a framework for explaining cognitive performance in space. In particular, by referring to the affective cognition hypothesis, the significant interplay between emotional variables and cognitive processing in space is briefly analyzed. Altogether, this approach shows an interesting pattern of data pointing to a dynamic relation that may be sensitive to microgravity. The importance of examining interactions between emotion and cognition for space performance remains fundamental (e.g., stress-related disorders) and deserves further attention. This approach is ultimately interesting considering the potential effects that microgravity may play on human performance during long-term space missions and on return to Earth.Mammarella N. Towards the affective cognition approach to human performance in space. Aerosp Med Hum Perform. 2020; 91(6):532–534.

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