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- Simpler models may be better for determining some climate risk
- Remnants of an ancient asteroid shed new light on the early solar system
- Historical racial and ethnic health inequities account for disproportionate COVID-19 impact
- Tree rings show scale of Arctic pollution is worse than previously thought
- The male Y chromosome does more than we thought
- Astronomers model, determine how disk galaxies evolve so smoothly
- Pair of massive baby stars swaddled in salty water vapor
- New knowledge about what causes thunderstorms and cloud bursts
| Simpler models may be better for determining some climate risk Posted: 25 Sep 2020 08:36 AM PDT Typically, computer models of climate become more and more complex as researchers strive to capture more details of our Earth's system, but according to a team of researchers, to assess risks, less complex models, with their ability to better sample uncertainties, may be a better choice. |
| Remnants of an ancient asteroid shed new light on the early solar system Posted: 25 Sep 2020 08:36 AM PDT Researchers have shaken up a once accepted timeline for cataclysmic events in the early solar system. Geological and geochemical records indicate that the Earth-Moon system experienced a period of frequent and cataclysmic impacts from asteroids and other bodies. It was thought that this period had a relatively sudden onset, but the researchers have found evidence that this bombardment period may have started much earlier, and decreased in intensity over time. |
| Historical racial and ethnic health inequities account for disproportionate COVID-19 impact Posted: 25 Sep 2020 08:36 AM PDT A new article examines the ways in which COVID-19 disproportionately impacts historically disadvantaged communities of color in the United States, and how baseline inequalities in our health system are amplified by the pandemic. The authors also discuss potential solutions. |
| Tree rings show scale of Arctic pollution is worse than previously thought Posted: 25 Sep 2020 08:34 AM PDT The largest-ever study of tree rings from Norilsk in the Russian Arctic has shown that the direct and indirect effects of industrial pollution in the region and beyond are far worse than previously thought. |
| The male Y chromosome does more than we thought Posted: 25 Sep 2020 08:34 AM PDT While the Y chromosome's role was believed to be limited to the functions of the sexual organs, a scientist has shown that it impacts the functions of other organs as well. |
| Astronomers model, determine how disk galaxies evolve so smoothly Posted: 25 Sep 2020 08:34 AM PDT By developing better computer simulations, researchers have determined that the scattering of stars from their orbits by the gravity of massive clumps within galaxies leads to a common look in galaxy disks -- bright centers fading away to dark edges. |
| Pair of massive baby stars swaddled in salty water vapor Posted: 25 Sep 2020 08:34 AM PDT Astronomers spotted a pair of massive baby stars growing in salty cosmic soup. Each star is shrouded by a gaseous disk which includes molecules of sodium chloride, commonly known as table salt, and heated water vapor. Analyzing the radio emissions from the salt and water, the team found that the disks are counter rotating. It is promising that salt is an excellent marker to explore the immediate surroundings of giant baby stars. |
| New knowledge about what causes thunderstorms and cloud bursts Posted: 25 Sep 2020 08:33 AM PDT Thunderstorms often provoke violent cloud bursts that can result in devastating flooding. But what actually spawns thunderstorms and cloud bursts? This question has spurred a new study. |
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