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Reconstructing the late-accretion history of the Moon

mercredi 10 juillet 2019 par Meng-Hua Zhu, Natalia Artemieva, Alessandro Morbidelli, Qing-Zhu Yin, Harry Becker, Kai Wünnemann
Nature, Published online: 10 July 2019; doi:10.1038/s41586-019-1359-0Lunar impact simulations find an impactor-retention ratio three times lower than previously thought and indicate that highly siderophile element retention began 4.35 billion years ago, resolving accretion mass discrepancies (...)

Low retention of impact material by the Moon

mercredi 10 juillet 2019 par James M. D. Day
Nature, Published online: 10 July 2019; doi:10.1038/d41586-019-02066-wSimulations demonstrate that the Moon’s ability to retain material from striking impactors is lower than was previously assumed. This finding helps to explain the scarcity of precious metals in the Moon relative to (...)

Apidima Cave fossils provide earliest evidence of Homo sapiens in Eurasia

mercredi 10 juillet 2019 par Katerina Harvati, Carolin Röding, Abel M. Bosman, Fotios A. Karakostis, Rainer Grün, Chris Stringer, Panagiotis Karkanas, Nicholas C. Thompson, Vassilis Koutoulidis, Lia A. Moulopoulos, Vassilis G. Gorgoulis, Mirsini Kouloukoussa
Nature, Published online: 10 July 2019; doi:10.1038/s41586-019-1376-zDetailed comparative analyses of two fossil crania from Apidima Cave, Greece, indicate that two late Middle Pleistocene human groups were present at this site; first an early Homo sapiens population followed by a Neanderthal (...)

Collective intercellular communication through ultra-fast hydrodynamic trigger waves

mercredi 10 juillet 2019 par Arnold J. T. M. Mathijssen, Joshua Culver, M. Saad Bhamla, Manu Prakash
Nature, Published online: 10 July 2019; doi:10.1038/s41586-019-1387-9Ultra-fast hydrodynamic communication between cells emerges in colonies of Spirostomum ambiguum through the generation of long-ranged vortex flows that are sensed by neighbouring cells, leading to propagating trigger waves (...)

These young scientists will shape the next 50 years of Moon research

mercredi 10 juillet 2019 par Alexandra Witze
Nature, Published online: 10 July 2019; doi:10.1038/d41586-019-02086-6Half a century after Apollo, Nature profiles five researchers who are shaking up lunar exploration.

Cancer, climate, plastics: why ‘earthshots’ are harder than moonshots

mercredi 10 juillet 2019
Nature, Published online: 10 July 2019; doi:10.1038/d41586-019-02093-7Apollo was a triumph, but 50 years on, moonshots to solve more-complex global challenges face a different set of hurdles.

An early dispersal of modern humans from Africa to Greece

mercredi 10 juillet 2019 par Eric Delson
Nature, Published online: 10 July 2019; doi:10.1038/d41586-019-02075-9Analysis of two fossils from a Greek cave has shed light on early hominins in Eurasia. One fossil is the earliest known specimen of Homo sapiens found outside Africa; the other is a Neanderthal who lived 40,000 years (...)

Faulty machines

mercredi 10 juillet 2019 par Gretchen Tessmer
Nature, Published online: 10 July 2019; doi:10.1038/d41586-019-02092-8A logical position.

First Moon landing was nearly a US–Soviet mission

mercredi 10 juillet 2019 par Roger D. Launius
Nature, Published online: 10 July 2019; doi:10.1038/d41586-019-02088-4As today’s tensions mount, it is salutary to recall that cooperation was on the table during the cold war, writes Roger D. Launius.

Whale hunt, climate lawsuits and chaos-theory pioneer

mercredi 10 juillet 2019
Nature, Published online: 10 July 2019; doi:10.1038/d41586-019-02085-7The week in science: 5–11 July 2019.

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