geek.com – Scientists in Japan have “awakened” 28,000-year-old cells from a woolly mammoth that lived on our planet years ago, and their observations could provide a better understanding of extinct animals’ lives. The team, which …
Source: Kazuo Yamagata, et al. Signs of biological activities of 28,000-year-old mammoth nuclei in mouse oocytes visualized by live-cell imaging. Scientific Reports, 2019.
upi.com – Trees in forests around the world are getting younger and shorter as a result of human-caused climate change.
Source: Nate G. McDowell, et al. Pervasive shifts in forest dynamics in a changing world. Science, 2020.
eurekalert.org – What is the origin of the asteroids Bennu and Ryugu, and of their spinning-top shape? Numerical simulations of large asteroid disruptions show that during such events, fragments are ejected and then reaccumulate forming aggregates, some of which have a spinning-top shape. Scientists conclude that the overall properties of Bennu and Ryugu could directly result from the disruption of their parent body.
Source: P. Michel, et al. Collisional formation of top-shaped asteroids and implications for the origins of Ryugu and Bennu. Nature Communications, 2020.
cbc.ca – In this week's issue of our environment newsletter, we look at the benefits of weeds, the benefits of 'forest bathing' and whether the current drop in carbon emissions is likely to last.
Source: Yuli Shan, Qi Huang, Dabo Guan, Klaus Hubacek. China CO2 emission accounts 2016–2017. Scientific Data, 2020.
cbc.ca – Doctors are exploring how to attack COVID-19 with antiviral treatments repurposed from HIV and Ebola.
Source: John H. Beigel, et al. Remdesivir for the Treatment of Covid-19 — Preliminary Report. New England Journal of Medicine, 2020.
npr.org – Federal forecasters expect 3 to 6 major hurricanes during the 2020 hurricane season, which runs from June 1 to November 1. Rising seas and a warmer climate make storms of all sizes more damaging.
Source: James P. Kossin, Kenneth R. Knapp, Timothy L. Olander, Christopher S. Velden. Global increase in major tropical cyclone exceedance probability over the past four decades. Proceedings of the National Academy of Sciences, 2020.
eurekalert.org – When pollen is in short supply, bumblebees damage plant leaves in a way that accelerates flower production, as an ETH research team headed up by Consuelo De Moraes and Mark Mescher has demonstrated.
Source: Foteini G. Pashalidou, Harriet Lambert, Thomas Peybernes, Mark C. Mescher, Consuelo M. De Moraes. Bumble bees damage plant leaves and accelerate flower production when pollen is scarce. Science, 2020.
popsci.com – The whole time it was in WHIM, the million-degree plasma that's permeated through the universe since the Big Bang.
Source: J.-P. Macquart, et al. A census of baryons in the Universe from localized fast radio bursts. Nature, 2020.
nextbigfuture.com – Breakthrough measurements of exoplanet Proxima B were made with radial velocity measurements of unprecedented precision using ESPRESSO, the Swiss-manufactured spectrograph – the most accurate... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
Source: A. Suárez Mascareño, et al. Revisiting Proxima with ESPRESSO. arXiv, 2020.
bbc.com – Scientists are learning just how fast the ice margin of Antarctica can retreat in a warming world.
Source: J. A. Dowdeswell, et al. Delicate seafloor landforms reveal past Antarctic grounding-line retreat of kilometers per year. Science, 2020.
arstechnica.com – The tipping point has come and gone, according to new analysis.
Source: Torbjörn E. Törnqvist, Krista L. Jankowski, Yong-Xiang Li, Juan L. González. Tipping points of Mississippi Delta marshes due to accelerated sea-level rise. Science Advances, 2020.