A small international team of planetary scientists has found evidence supporting the theory that the near-Earth asteroid Kamo’oalewa is ejecta from the moon. In their paper published in the journal Nature Astronomy, the group describes their data-driven models and what they revealed.

Since the first Earth Day in 1970, the world has experienced profound ecological changes. Wildlife populations have decreased by 69 percent, the result of habitat loss caused by rapid industrialization and changing temperatures. 2023 was the hottest year on record.

Legislative restrictions have made it difficult to obtain government funding for psychedelic research, but now corporations are stepping up to fund clinical trials. Although this support may help accelerate researchers’ understanding of psychedelics, it also sparks concern as a conflict of interest.

The period in which humans arrived in South America, in particular, north-western Patagonia, has been the subject of an ongoing debate by academics for many years. Previous archaeological evidence and palaeogenetic studies have suggested human presence between 16 600 and 15 100 cal BP. However, a new study published in the journal Antiquity is providing new evidence of pre-Holocene human activity during the late Pleistocene–early Holocene transition

From house plants and gardens to fields and forests, green is the color we most associate with surface life on Earth…But an Earth-like planet orbiting another star might look very different, potentially covered by bacteria that receive little or no visible light or oxygen…Instead of green, many such bacteria on Earth contain purple pigments…Cornell scientists report in new research.