MS-ESS1-2
Develop and use a model to describe the role of gravity in the motions within galaxies and the solar system.
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SpaceNASA’s DART spacecraft successfully bumped an asteroid onto a new path
The spacecraft’s intentional crash into an asteroid changed the space rock’s orbit by more than 30 minutes — far more than expected.
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SpaceA missing moon could have given Saturn its rings — and tilt
The hypothetical moon is being called Chrysalis. It could have helped tip the planet over before getting shredded to form Saturn’s rings.
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TechNASA’s DART spacecraft crashed into an asteroid — on purpose
This mission could provide a blueprint for how to deflect a killer asteroid, if one is ever found headed for Earth.
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PhysicsLet’s learn about gravitational waves
Gravitational waves offer scientists a new way to view extreme objects such as black holes and neutron stars.
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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 -
PlanetsScientists Say: Habitable Zone
The habitable zone is the region around a star where temperatures could be right for worlds to host liquid water.
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SpaceA massive rogue roaming our galaxy may be a black hole
Alternatively, this unseen wanderer might be a hefty neutron star. Whatever it is, its gravity caused starlight to be warped — and that gave it away.
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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 -
PlanetsAnalyze This: Some 5,000 planets orbit stars other than our sun
A new cache of confirmed exoplanet discoveries marks a milestone in planets found beyond our solar system.
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PhysicsExplainer: All about orbits
A handful of rules can describe the route some object repeatedly takes around another in space. Calculating that path, however, can be quite complex.
By Trisha Muro -
SpaceScientists Say: Constellation
Constellations are clusters of related things, especially the stars that form patterns in the night sky — some of which date back to ancient times.
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PlanetsLet’s learn about Pluto
Once known as a pipsqueak planet, Pluto is now the solar system’s best known dwarf planet.