Hiroshi Naraoka

Feb 27, 2023 | science.org | Tetsuya Yokoyama |T. Nakamura |Hiroshi Naraoka |James Wilsdon

Declaring oneself—or aspiring to become—a global superpower sits uneasily with a British tendency towards self-deprecation. Rather, in this post-Elizabethan, post-Brexit chapter of the United Kingdom’s story, public debate is undercut by fear of decline. References to Britain’s imperial past are often sidestepped or accompanied by apologies. The exception is in political discussions of science, where assertions of national supremacy and manifest global destiny are now commonplace.

Feb 23, 2023 | science.org | Tetsuya Yokoyama |T. Nakamura |Hiroshi Naraoka

In October 2022, the AAAS Council elected 505 members as Fellows of AAAS. Election as a Fellow honors members whose efforts on behalf of the advancement of science or its applications in service to society have distinguished them among their peers and colleagues. Presented by section affiliation, they are:Section on Agriculture, Food, and Renewable ResourcesBryan William Brooks, Baylor UniversityJohn Chandler Cushman, University of Nevada, RenoDavid M.

Feb 23, 2023 | science.org | Tetsuya Yokoyama |T. Nakamura |Hiroshi Naraoka |Wei Zhang

LATEST NEWS Plastics to fuels in ionic liquidsPolyethylene and polypropylene have many useful properties, but their resistance to chemical degradation makes processing their waste a challenge. In particular, heating to high temperatures to crack the underlying carbon–carbon bonds can be energy intensive. Zhang et al.

Feb 23, 2023 | science.org | Tetsuya Yokoyama |T. Nakamura |Hiroshi Naraoka |Priya Davidar

Information & AuthorsInformationPublished In ScienceVolume 379 | Issue 663424 February 2023CopyrightCopyright © 2023 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Submission historyPublished in print: 24 February 2023PermissionsRequest permissions for this article.

Feb 23, 2023 | science.org | Tetsuya Yokoyama |T. Nakamura |Hiroshi Naraoka

Small asteroids are leftover material from the formation of the Solar System, so samples of them could provide information on processes that occurred during that early period. The Hayabusa2 spacecraft collected about 5 grams of material from the nearby asteroid (162173) Ryugu and brought it to Earth, where scientists have access to more techniques and can collect data with far greater sensitivity than is possible with spacecraft instruments.