Research Preview: Science Magazine – Feb 24, 2023

Contents | Science 379, 6634

Science Magazine – February 24, 2023 issue:

Samples returned from the asteroid Ryugu are similar to Ivuna-type carbonaceous meteorites

The Hayabusa2 spacecraft made two landings on the asteroid (162173) Ryugu in 2019, during which it collected samples of the surface material. Those samples were delivered to Earth in December 2020. The colors, shapes, and morphologies of the returned samples are consistent with those observed on Ryugu by Hayabusa2, indicating that they are representative of the asteroid.

Journals take up arms against AI-written text

Many ask authors to disclose use of ChatGPT and other generative artificial intelligence

Iron stress threatens Southern Ocean phytoplankton

Lack of the nutrient limits the plants’ productivity, key to climate and ecosystems

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