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Cave deposits suggest Earth experienced dramatic sea level rise 4 million years ago

Cave deposits suggest Earth experienced dramatic sea level rise 4 million years ago

Science
Aug. 30 (UPI) -- Scientists have discovered ancient deposits in the Artà Cave on the island of Mallorca that suggest sea levels 3.5 to 4 million years ago were more than 50 feet higher than they are today. Analysis of the speleothems, or cave formations, could help scientists more accurately predict how modern climate change will influence sea level rise in the decades ahead. To predict how melting ice sheets will affect sea levels across the globe, scientists need historic benchmarks. Mineral deposits in the Artà Cave have provided just that. "Constraining models for sea-level rise due to increased warming critically depends on actual measurements of past sea level," Victor Polyak, research scientist at the University of New Mexico, said in a news release. "This study provides very robu
Raytheon wins $13.2 million contract for SM-2, SM-6 missile support

Raytheon wins $13.2 million contract for SM-2, SM-6 missile support

Business
Aug. 21 (UPI) -- Raytheon Missile Systems won a $ 13.2 million contract for engineering and technical services on standard guided missiles for the U.S. Navy and six foreign countries, the Pentagon announced. Raytheon was awarded the modification to a prior contract, the Defense Department said on Tuesday, referring to the support of Standard Missile-2/6. The designation refers to the SM-2, or RIM-166 missile, and its new and upgraded version, designated SM-6 or RIM-174. Each is a surface-to-air missile designed to intercept both hostile aircraft and high-performance anti-ship missiles. The SM-6 variant can be used against fixed and rotary wing aircraft, unmanned aerial vehicles, land attack cruise missiles and anti-ship cruise missiles. Each is vertically launched and compatible with the...
Biostar security software ‘leaked a million fingerprints’

Biostar security software ‘leaked a million fingerprints’

Technology
More than a million fingerprints and other sensitive data have been exposed online by a biometric security firm, researchers say.Researchers working with cyber-security firm VPNMentor say they accessed data from a security tool called Biostar 2.It is used by thousands of companies worldwide, including the UK's Metropolitan Police, to control access to specific parts of secure facilities.Suprema, the firm that offers Biostar 2, said it was addressing the issue."If there has been any definite threat on our products and/or services, we will take immediate actions and make appropriate announcements to protect our customers' valuable businesses and assets," a company spokesman told the Guardian.According to VPNMentor, the exposed data...
Plant roots began following gravity 350 million years ago

Plant roots began following gravity 350 million years ago

Science
Aug. 2 (UPI) -- To make the transition from sea to land, plant roots had to learn to grow downward, to follow gravity. This ability, gravitropism, helped plants anchor to the soil and retrieve water and nutrients. New analysis of this vital adaptation suggests the ability first emerged roughly 350 million years ago. Scientists have studied gravitropism in flowering plants, but until now researchers had not surveyed root growth patterns across the entirety of the plant kingdom. The survey, published this week in the journal Nature Communications, offered scientists new insights into the evolutionary origins of gravitropism. For the study, scientists observed the root growth of several different plant types, including mosses, ferns, conifers and flowering plants. Researchers watched as the...