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How many squid short-finned pilot whales (Globicephala macrorhynchus) living off Hawaiʻi must eat each day, and whether the surrounding waters can support their needs, are key questions for conservation. Understanding these fundamentals helps scientists assess the stability of whale populations. A research team from the USA, Spain, Australia and Denmark reports in the Journal of…

Electricity keeps modern life running, from cars and phones to computers and nearly every device we rely on. It works through the movement of electrons traveling through a circuit. Although these particles are far too small to see, the electric current they produce flows through wires in a way that resembles water moving through a…

Astronomers at the University of North Carolina at Chapel Hill have found that the well-known Pleiades star cluster, often called the “Seven Sisters,” represents only the bright center of a much larger community of related stars. By analyzing data from NASA’s Transiting Exoplanet Survey Satellite (TESS) and the European Space Agency’s Gaia space telescope, the…

Swift observations with the European Southern Observatory’s Very Large Telescope (ESO’s VLT) have captured a star in the act of exploding, right as the blast pushed through its surface. This moment revealed the shape of the explosion during its earliest stage, a phase so brief that it would have disappeared from view within a day….