Earth's Place in the Universe
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PlanetsThis image may be the first look at exomoons in the making
These observations offer some of the best evidence yet that planets around other stars have moons, or exomoons.
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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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PlanetsBorn in deep shadows? That could explain Jupiter’s strange makeup
Dust that blocked sunlight might have caused the gas giant to form in a deep freeze, a new study suggests.
By Ken Croswell -
SpaceCosmic filaments may have the biggest spin in outer space
These rotating threads of dark matter and galaxies stretch millions of light-years. Scientists want to know how their spin begins.
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SpaceMoon-sized white dwarf is the smallest ever found
This dead star is also spinning very fast and has an amazingly powerful magnetic field.
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PhysicsSpin in this Milky Way bar may show cosmic dark matter does exist
A method akin to studying a tree’s rings reveals the timeline of a slowdown in those stars at the heart of our Milky Way galaxy.
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SpaceHuge arc of galaxies is surprising and puzzling cosmologists
The arc appears to violate a cosmic rule that on such large scales, matter will be evenly distributed.
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SpaceThe Milky Way’s ‘yellowballs’ are clusters of baby stars
The mysterious cosmic objects — first spotted by citizen scientists — turn out to be infant stars of various masses.
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ClimateClimate may have sent drift of the North Pole toward Greenland
This mid-1990s shift in the pole’s movement was driven by glacial melt. And that was triggered in part by climate change, a new study reports.
By Sid Perkins -
PhysicsStars made of antimatter could lurk in our galaxy
Fourteen sources of gamma rays in our galaxy look like they could be antistars — celestial bodies made of antimatter.
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PhysicsThe pebbled path to planets
Small pebbles zipping through a sea of gas may give rise to mighty planets.
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PhysicsStaying grounded in space requires artificial gravity
On TV, people in space walk around like they’re on Earth. How can science give real astronauts artificial gravity? Spin right round, baby.