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...migrate outwards so that they would collide and merge with each other into the larger moon that we know today. Are the two studies contradictory? I don’t think so. If the multiple-impact model is correct, then the 60m-year limit to the formation of the Moon after the birth of the solar system could still date the end, or nearly the end, of the sequence of Moon...

...migration policies – which the research also feeds into. “MSF is a credible voice because we link it [evidence] to our medical work,” Hawkins says. “If we talk about the case of refugees and migrants, medical data can demonstrate that government policies are causing harm to people.” What I heard did enough to overturn an initial impression that this vital...

...migrating inland); however, as seen in Figure 2, it never reached a high frequency in inland populations. The reason for this is that the ester1 mutation carries a fitness cost to mosquitoes carrying it. The overproduction of the A1 esterase has a side effect of interfering with cholinergic synapses of the central nervous system (those in which the neurotransmitter is...

...migrated away from the early-Earth until they settled into an orbit. Successive impacts into the Earth’s surface at several million-year intervals created more moonlets that migrated into similar orbits. As the orbit path got busier collisions occurred causing the moonlets to coalesce into larger moonlets. Over time, enough collisions are thought to have occurred to...