Radar and Optical Observations and Physical Modeling of Binary Near-Earth Asteroid 2018 EB

Autor: Marina Brozović, Lance A. M. Benner, Shantanu P. Naidu, Nicholas Moskovitz, Jon D. Giorgini, Anne K. Virkki, Sean E. Marshall, Lord R. Dover, Agata Rożek, Stephen C. Lowry, Brian D. Warner, Patrick A. Taylor, Edgard G. Rivera-Valentin, Timothy A. Lister, Joseph P. Chatelain, Michael W. Busch, Christopher Magri, Joseph S. Jao, Lawrence G. Snedeker, Kenneth J. Lawrence

Publikováno v: The Planetary Science Journal, Vol 5, Iss 5, p 123 (2024)

We report radar, photometric, and visible-wavelength spectrophotometry observations of NEA 2018 EB obtained in 2018. The radar campaign started at Goldstone (8560 MHz, 3.5 cm) on April 7, and it was followed by more extensive observations from Octobe

Externí odkaz: https://doaj.org/article/7e03b22d7c0e49b3a7984d46681d32ff

Introduction-First Billion Years: Habitability

Autor: Justin Filiberto, Mitch Schulte, Irena Mamajanov, Kennda Lynch, Timothy W. Lyons, Edgard G. Rivera-Valentin, Abel Méndez

Publikováno v: Astrobiology

The physical processes active during the first billion years (FBY) of Earth's history, such as accretion, differentiation, and impact cratering, provide constraints on the initial conditions that were conducive to the formation and establishment of l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::457359d60a51c3ef21c9d0969afae779
https://pubmed.ncbi.nlm.nih.gov/34406807

Prolonged Rock Exhumation at the Rims of Kilometer‐Scale Lunar Craters

Autor: Bradley J. Thomson, Edgard G. Rivera-Valentin, G. W. Patterson, Caleb I. Fassett, C. A. Nypaver

Publikováno v: Journal of Geophysical Research: Planets. 126

Fresh impact ejecta deposits on the lunar surface can be characterized as heterogeneous mixtures of boulders, cobbles, and fine-grained regolith that are deposited on the lunar surface during the i...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::db95a1fa39c636987be42ab77d9daa36
https://doi.org/10.1029/2021je006897

Arecibo radar observations of near-Earth asteroid (3200) Phaethon during the 2017 apparition

Autor: Anne Virkki, Luisa F. Zambrano-Marin, Betzaida Aponte-Hernandez, Carolina Rodriguez Sanchez-Vahamonde, Patrick A. Taylor, Flaviane Venditti, Sean E. Marshall, Edgard G. Rivera-Valentin, Jon D. Giorgini, Lance A. M. Benner, S. S. Bhiravarasu

Publikováno v: Planetary and Space Science. 167:1-8

We report Arecibo S-band (2380 MHz; 12.6 cm) radar observations of near-Earth asteroid (3200) Phaethon during the December 2017 apparition when Phaethon passed within 0.07 au of Earth. Radar images with a resolution of 75 m per pixel reveal a roughly

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c6e84105f31dc29639a00ce7089d049
https://doi.org/10.1016/j.pss.2019.01.009

Advancing Space Science Requires NASA Support for Coordination Between the Science Mission Directorate Communities

Autor: Michael Meyer, Britney E. Schmidt, Shawn Domagal-Goldman, Krista Soderland, Ian J. Cohen, Alejandro Soto, Kevin B. Stevenson, Yasuhiro Hasegawa, Lynnae C. Quick, Arif Solmaz, William C. Danchi, Dennis Bodewits, Paul K. Byrne, Amanda R. Hendrix, Rory Barnes, Thomas G. Beatty, Margaret Turnbull, Alice Cocoros, Diana Dragomir, Kathleen Mandt, Kelly E. Miller, Paul A. Dalba, Shannon Curry, Jeremy J. Drake, Nicholas G. Heavens, Flora Paganelli, Richard Cartwright, Kylie Lovato, Brian Jackson, Ronald J. Vervack, Mark S. Marley, Stefanie N. Milam, Aki Roberge, Dana M. Hurley, Kirby Runyon, Jonathan J. Fortney, Edwin A. Bergin, Monica Vidaurri, Carl Melis, Alberto Accomazzi, Carey M. Lisse, Peter Plavchan, Darby Dyar, Jason T. Wright, Tracy M. Becker, Anthony D. Del Genio, L. C. Mayorga, Neal J. Turner, Elena Provornikova, Paul R. Mahaffy, K. Garcia-Sage, Jon M. Jenkins, Amanda J. Bayless, Noemi Pinella-Alonso, Edgard G. Rivera-Valentin, Kurt D. Retherford, Giada Arney, Elisa V. Quintana, Seth Redfield, R. Nikoukar, Joshua Pepper, Karl R. Stapelfeldt, Jason S. Kalirai, Daniel Angerhausen, Stephen R. Kane, Abigail Rymer, Erin C. Smith, Amy Simon, S. Diniega, Robert Allen, Christina Richey, Miguel de Val-Borro, Pontus Brandt, Chuanfei Dong, Marilia Samara, Victoria S. Meadows, Dawn M. Gelino

Publikováno v: Bulletin of the AAS. 53

We outline specific steps that NASA and the space science community can take to advance collaboration and coordination between the communities represented by the four NASA Science Mission Directorate Divisions. It is important to note that the only w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e5b6585dde552b2f58e33e8ca5036803
https://doi.org/10.3847/25c2cfeb.53e7ca7e