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Here is a question you may not ask yourself often: How hot is the Earth's interior? Climate change news frequently focuses our attention on the outer temperature of the planet. But the temperature inside the Earth can help scientists better understand tectonic plates, which, in turn, could tell us more about how our planet is able to support life. This week, Tom Metcalfe reports a new model for measuring inner temperature that involves "sea glasses" -- molten lava that is rapidly cooled by cold sea water. Karen Kwon, Intern How Do You Take the Earth's Temperature? Check Out Undersea Volcanos A new model, based on "sea glass" from ocean ridges, may help scientists more easily answer a question they have long struggled with. By Tom Metcalfe, Contributor Smartphones With Thermal Imaging Cameras Might Make Handy Thermometers A new heat sensor offers an option for incorporating thermal imaging into phones.                   By Meeri Kim, Contributor [Video] Robot Inspired by Plant Roots Burrows Underground Engineers developed a soft robot that can move through sand and curve around objects where traditional robots struggle.                                               By Karen Kwon, Contributor Many People With Cancer Lack Protection Against Measles and Mumps Fallen vaccination rates pose a threat to this vulnerable population.                 By Karen Kwon, Contributor How Diet Changed Language By Charles Q. Choi, Contributor                                                                                                       How High Could Icarus Fly Before His Wings Melted? By Yuen Yiu, Staff Writer The Aerodynamics of a Soccer Ball By Rodrigo Pérez Ortega, Contributor Humans have pushed the climate into 'unprecedented' territory, landmark U.N. report finds By Brady Dennis and Sarah Kaplan, The Washington Post The United Nations' Intergovernmental Panel on Climate Change released a major report on Monday, detailing how humans have changed the environment at an "unprecedented" speed and what could happen going forward if the world doesn't reduce greenhouse gas emissions drastically. This story summarizes the report's key points and puts them into context.                                                                                                                                                                                   Physicists discover new kind of tetraquark—the longest-lived yet found By Jennifer Ouellette, Ars Technica The European atom-smashing agency CERN announced the discovery of a new tetraquark that's the longest-lived yet found, comprised of two heavy quarks and two light antiquarks, Ars Technica's Jennifer Ouellette reports. "The discovery brings us one step closer to a better understanding of the complicated underlying rules that govern how these exotic particles are combined," the story said. Why WHO Is Calling For A Moratorium On COVID Vaccine Boosters By Jason Beaubien, NPR Goats and Soda The World Health Organization is arguing that people who are fully vaccinated against COVID-19 shouldn't receive booster shots in the next two months at least. This NPR story explains why WHO made the announcement and what the U.S. government's response is. Read More from Inside Science Copyright 2021 American Institute of Physics. Inside Science syndicates its articles, columns, blogs and videos to news organizations. To initiate syndication, or request permission to republish our content (on a one-time or continuing basis), please contact Inside Science at insidescience@aip.org. News organizations seeking permission to republish Inside Science content must fully credit Inside Science as the original source of the content, include the author byline, and republish the original, unaltered form (excluding content titles, headlines, or sub-headlines). The reprint format can be seen here. Copyright conditions and usage terms are subject to change at any time without consent or any type of prior notice. To unsubscribe from all future mailings from Inside Science please click here. To manage your email subscriptions please click here.

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