Results 51 to 60 of about 39,548 (162)

Powerful Lightning on Venus Constrained by Atmospheric NO

The Planetary Science Journal
Signs of lightning on Venus have long been sought, including by space missions and ground-based telescopes searching for optical flashes, plasma waves, or radio signatures. These efforts have yielded conflicting findings regarding the presence or absence
Tereza Constantinou, Oliver Shorttle, Paul B. Rimmer   +2 more
doaj   +1 more source

The Apophis Encounter in 2029: A Rare Opportunity for Planetary Science and Defense

Space: Science & Technology
The 2029 close encounter of near-Earth asteroid (99942) Apophis, at approximately 38,000 km from Earth center, offers a unique opportunity to advance planetary science, defense, and public engagement.
Jianyang Li, Yang Yu, Xian Shi, Bin Cheng, Nan Zhang, Zhijun Song, Liping Qin, Hairong Lai, Mingtao Li, Mao Ye, Gonzalo Tancredi, Daniel Hestroffer, Benjamin F. Chao   +12 more
doaj   +1 more source

Who is missing in planetary Science?: A demographic study of the planetary science workforce [PDF]

Bulletin of the AAS, 2021
Edgard Rivera-Valentín, Julie Rathbun, James Tuttle Keane, Kennda Lynch, Christina Richey, Serina Diniega, Janet Vertesi   +6 more
openaire   +1 more source

Improving Porosity Calculation Methods and Proposing a New Model Universally Applicable to Large- and Medium-sized Planetary Objects

The Astrophysical Journal
Our work was aimed at the improvement of two main already existing methods of porosity calculation on a planetary scale in order to expand these methods to be applicable to exoplanetary interiors. In addition to implementing some improvements in the used
Imre Kisvárdai, Ákos Kereszturi
doaj   +1 more source

Validation Experiments for In Situ Ne Isotope Analysis on Mars: Gas Separation Flange Assembly Using Polyimide Membrane and Metal Seal

The Planetary Science Journal
The Martian atmospheric Ne may reflect recent gas supply from its mantle via volcanic degassing, due to its short (∼100 Myr) escape timescale. The isotopic ratio of the Martian atmospheric Ne would therefore provide insights into that of the Martian ...
Yuichiro Cho, Yayoi N. Miura, Hikaru Hyuga, Kenta Shimokoshi, Kazuo Yoshioka, Hiroyuki Kurokawa, Hidenori Kumagai, Naoyoshi Iwata, Satoshi Kasahara, Haruhisa Tabata, Mari Aida, Yoshifumi Saito, Seiji Sugita   +12 more
doaj   +1 more source

Simulating Science Operations for a Joint Rover-helicopter Mission Architecture in a Mars Analog Setting

The Planetary Science Journal
Aerial platforms can explore planetary surfaces without the mobility limitations of rovers and landers. Inspired by the recent successes and challenges of NASA’s IngenuAity Mars Helicopter, the Rover-Aerial Vehicle Exploration Network project explored ...
Kathryn M. Stack, Raymond Francis, Fred J. Calef III, Samantha J. Gwizd, Jeffrey F. Schroeder, Joana R. C. Voigt, Thorsteinn Kristinsson, Peter Schroedl, Jahnavi Shah, Matthew Varnam, Catherine D. Neish, Reid P. Perkins, Sashank Vanga, Michael S. Bramble, Andrea Donnellan, Jeffrey T. Osterhout, Michael Tuite, Brett B. Carr, Christopher W. Hamilton   +18 more
doaj   +1 more source

Infrared spectroscopy of volcanoes: from laboratory to orbital scale

Frontiers in Earth Science
Understanding the composition, texture, and morphology of volcanic rocks that have erupted at the surface better constrains the eruption style and is vital to infer subsurface processes, the development of magma upon ascent, and the potential for future ...
Daniel B. Williams, Michael S. Ramsey, Michael S. Ramsey   +2 more
doaj   +1 more source

Habitable exoplanet - a statistical search for life

Frontiers in Astronomy and Space Sciences
IntroductionThe identification of habitable exoplanets is an important challenge in modern space science, requiring the combination of planetary and stellar parameters to assess conditions that support life.MethodsUsing a dataset of 5867 exoplanets from ...
Prasenjit Banerjee, Asis Kumar Chattopadhyay   +1 more
doaj   +1 more source

Stellar occultations: a gateway to advances in planetary science. [PDF]

Philos Trans A Math Phys Eng Sci
Souami D, Sfair R, Renner S, El Moutamid M.   +3 more
europepmc   +1 more source

Perspectives on Mars Sample Return: A critical resource for planetary science and exploration. [PDF]

Proc Natl Acad Sci U S A
McSween HY, Hamilton VE, Farley KA.
europepmc   +1 more source