Space
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We summarize the week's scientific breakthroughs every Thursday.
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SpaceBackward planets may have flipped into place
Reversed orbits among ‘hot Jupiters’ decreases chance of Earthlike neighbors.
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SpaceNewfound neighbor to solar system is a cool slacker
Researchers have found the closest brown dwarf to Earth and the coolest yet seen, raising the possibility that the nearest starlike body to the solar system may be a brown dwarf rather than a star.
By Ron Cowen -
SpaceCosmic magnetic field strength measured
Hints of weak magnetism between galaxies narrows options for how the early universe got its fields.
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Planetary ScienceWarmth in the dark age
Lower reflectivity kept Earth from freezing under a fainter young sun.
By Sid Perkins -
Planetary ScienceSigns of giant comet impacts found in cores
An uptick in ammonium may be evidence of a 50-billion-ton strike at the end of the ice age.
By Sid Perkins -
SpaceCosmic telephoto lens shows intense, early star formation
A recently discovered galaxy gives a detailed view of stellar birth in the young universe.
By Ron Cowen -
SpaceThis exoplanet is so cool
A satellite has found the first temperate planet outside the solar system that can be studied in detail.
By Ron Cowen -
SpaceSpacecraft takes express tour of Martian moon
New images and gravity data reveal details about the origin and composition of Phobos.
By Ron Cowen -
SpaceMagnetic flows cause sunspot lows, study shows
Observations of gas flows on the solar surface may explain why the sun recently had such a prolonged case of the doldrums; could lead to more accurate predictions for the duration and severity of future solar cycles.
By Ron Cowen -
SpaceGeophysicists push age of Earth’s magnetic field back 250 million years
South African rocks suggest that the earliest stages of life on Earth were protected from harmful solar radiation.
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SpaceSpirit: ‘The reports of my death have been greatly exaggerated’
The Mars rover makes a small, but promising, move.