livescience.com – Before that happens, we need to recognize that a very real possibility exists that the first human steps on the Martian surface will lead to a collision between terrestrial life and biota native to Mars.
Source: Christopher R. Webster, et al. Background levels of methane in Mars’ atmosphere show strong seasonal variations. Science, 2018.
mashable.com – "It basically caused life to suffocate."
Source: Justin L. Penn, Curtis Deutsch, Jonathan L. Payne, Erik A. Sperling. Temperature-dependent hypoxia explains biogeography and severity of end-Permian marine mass extinction. Science, 2018.
upi.com – New research suggests Jurassic ichthyosaurs were more like modern marine mammals than previously realized.
Source: Johan Lindgren, et al. Soft-tissue evidence for homeothermy and crypsis in a Jurassic ichthyosaur. Nature, 2018.
zmescience.com – The remains of a 20-year-old woman found in Sweden may help scientists retrace the origin of the deadly disease.
Source: Nicolás Rascovan, et al. Emergence and Spread of Basal Lineages of Yersinia pestis during the Neolithic Decline. Cell, 2018.
arstechnica.com – The mouse-sized lizards use a combination of surface tension and slapping motion.
Source: Jasmine A. Nirody, et al. Geckos Race Across the Water’s Surface Using Multiple Mechanisms. Current Biology, 2018.
zmescience.com – Helium was predicted to be one of the most common elements of exoplanets, but was only recently observed for the first time.
Source: R. Allart, et al. Spectrally resolved helium absorption from the extended atmosphere of a warm Neptune-mass exoplanet. Science, 2018.
arstechnica.com – The last 20 years were no natural fluke.
Source: Luke D. Trusel, et al. Nonlinear rise in Greenland runoff in response to post-industrial Arctic warming. Nature, 2018.
nytimes.com – Astronomers have calculated all the light ever produced by all the stars in the cosmos. It’s a lot, but on the cosmic whole, not that much.
Source: A gamma-ray determination of the Universe’s star formation history. Science, 2018.
nytimes.com – The jumping arachnids’ secretions have four times as much protein as cow milk.
Source: Zhanqi Chen, et al. Prolonged milk provisioning in a jumping spider. Science, 2018.
digitaltrends.com – A South Korean experiment called COSINE-100 has attempted to replicate the claims of dark matter observed by the Italian DAMA/LIBRA experiment, but has failed to replicate the observations. This makes the fringe position that dark matter has already been identified more untenable.
Source: An experiment to search for dark-matter interactions using sodium iodide detectors. Nature, 2018.