Stefano Grimaldi

TL;DR: Improved accelerator mass spectrometry 14C techniques are applied to construct robust chronologies from 40 key Mousterian and Neanderthal archaeological sites, showing that there was ample time for the transmission of cultural and symbolic behaviours, as well as possible genetic exchanges, between the two groups.

TL;DR: This discovery from Poggetti Vecchi provides evidence of the processing and use of wood by early Neanderthals, showing their ability to use fire in tool making from very tough wood.

TL;DR: The stratigraphic sequence is described based on new field observations and 15 radiocarbon determinations from the Middle Palaeolithic (late Mousterian) and Early Upper Palaeocene (Aurignacian and Gravettian) levels are presented.

TL;DR: In this paper, a complete terrace staircase sequence was identified, consisting of six gravely terraces located below the culminant (Pliocene) basin unit, and the oldest artefacts were found at the base of the T4 terrace, with the local stratigraphic level dated to ≥175 ± 6 ǫ (Middle Pleistocene).

TL;DR: In this paper , the authors characterize the actual science performance of the James Webb Space Telescope (JWST), as determined from the six month commissioning period, with an emphasis on differences from pre-launch expectations.