HS-ESS1-1
Develop a model based on evidence to illustrate the life span of the sun and the role of nuclear fusion in the sun's core to release energy that eventually reaches Earth in the form of radiation.
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PhysicsLet’s learn about ‘ghost particles’
Ghostly particles called neutrinos are so lightweight that for a long time, they were thought to have no mass at all.
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EarthAmateur astronomers reveal clues to a mysterious double aurora
Stunning images from citizen scientists show an unusual pattern in ‘Northern Lights.’ They offer clues that may help astronomers better understand a curious red glow.
By Asa Stahl -
PhysicsSome of the sun’s iconic coronal loops may be ghostly illusions
Wrinkles in the sun’s outer atmosphere might trick the eye into seeing glowing arches, scientists now report.
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SpaceWe finally have an image of the black hole at the heart of our galaxy
New observations from the Event Horizon Telescope reveal the chaotic region around the Milky Way’s central black hole, Sagittarius A*, in extreme detail.
By Liz Kruesi and Emily Conover -
ClimateNuevo informe de la ONU sobre el clima: no hay tiempo que perder
En el informe de la ONU se vinculan directamente las temperaturas extremas, lluvias e incendios en todo el mundo con el clima cambiante de la Tierra.
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PhysicsWild art? No, it’s a radio image of the heart of our Milky Way
Eyelash-like radio filaments accent the brightest feature in this image — a supermassive black hole.
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SpaceScientists Say: Solar wind
This is a powerful gust of charged particles that flows out from the sun through the solar system.
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SpaceExplainer: Calculating a star’s age
Scientists can figure out a star's mass or composition pretty easily. Determining how old that star is, however, is a lot harder.
By Lisa Grossman and Helen Thompson -
ClimateNew UN climate report finds no time for denial or delay
It links extreme weather around the globe to Earth’s changing climate.
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MathMeet ‘Pi’ — a new Earth-sized planet
Searching through data from NASA’s K2 Mission, researchers found a new planet. Some call it K2-315b, others smile and refer to it as “Pi Earth.”
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Close-up of the sun reveals ‘campfires’
Solar Orbiter’s first images are in. The spacecraft’s pics show tiny, never-before-seen flares across the sun’s surface.
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PhysicsExplainer: Stars and their families
Most pinpoints that light the night sky are raging infernos we call stars. As adults, many will create new elements that they later cast off into the cosmos.
By Ken Croswell