Space
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ChemistryDwarf galaxy spawned heavy elements
A study of nine stars in the dwarf galaxy Reticulum II found heavy elements. They had been produced after a violent stellar event sparked a chemical chain reaction.
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SpaceHurricane at this galaxy’s center is wicked fast
The gale-force winds around one quasar whip by at almost 200 million kilometers per hour. That’s 625,000 times faster than the strongest hurricanes on Earth.
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EarthCool Jobs: Mapping the unknown
Scientists find different ways of exploring places humans will never visit — and drawing maps to help us better understand such mysterious places.
By Ilima Loomis -
PhysicsBlack hole smashup sent out ‘yottawatts’ of power
When two black holes collided, they released a lot of energy in gravity waves. How much? How about 36 septillion yottawatts of power!
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PhysicsSay hello to gravity waves
Einstein predicted these waves 100 years ago. Scientists have finally proven him right.
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PhysicsGravity waves detected at last!
Albert Einstein predicted gravitational waves 100 years ago. Now scientists have detected them coming from the collision of two black holes.
By Andrew Grant -
PhysicsExplainer: What are gravitational waves?
Albert Einstein had predicted that large catastrophes, like colliding black holes, should produce tiny ripples in the fabric of space. In 2016, scientists reported finally detecting them
By Christopher Crockett and Andrew Grant -
PhysicsHow to catch a gravity wave
Physicists have just announced finding gravity waves. The phenomenon was predicted a century ago by Einstein’s theory of general relativity. Here’s what it took to detect the waves.
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PlanetsHunt is on for new Planet Nine
Lots of clues point to the likelihood that a mystery planet lurks in the outer suburbs of our solar system. Math and the screening of old photos may turn it up.
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PlanetsBeyond Pluto: A new 9th planet?
A giant planet, perhaps 10 times Earth’s mass, may be orbiting the sun from a great distance. Its existence, orbit and size are all surmised, based on strange effects seen in objects within the distant Kuiper Belt.
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SpaceAn alarm system for Earth crashers
The ATLAS telescope could be a last-minute warning system for asteroids just days away from hitting Earth.
By Ilima Loomis -
SpaceNew recipe for monster black holes
The conventional idea for how black holes form would not easily allow for huge ones to develop in the early universe. Yet they did. Now a scientist offers a new view: galaxy mash-ups!
By Andrew Grant