Space
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Space
Why losing Arecibo is a big deal for astronomy
The radio telescope at the Arecibo Observatory has collapsed, robbing scientists of a special tool for studying everything from asteroids to galaxies.
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Planetary Science
50 years ago, scientists caught their first glimpse of amino acids from outer space
In 1970, scientists detected amino acids in a meteorite. Fifty years later, a variety of chemical ingredients for life have been found in other space rocks.
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Space
December’s stunning Geminid meteor shower is born from a humble asteroid
Most meteor showers arise from comets, but the robust Geminid shower comes from an asteroid, Phaethon, which scientists are still trying to figure out.
By Ken Croswell -
Planetary Science
China is about to collect the first moon rocks since the 1970s
The robotic Chang’e-5 mission, which landed on an unexplored region of the moon December 1, aims to gather samples and return them to Earth.
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Space
Astronomers spotted colliding neutron stars that may have formed a magnetar
Astronomers may have witnessed the formation of a kind of rapidly spinning, extremely magnetized stellar corpse for the first time.
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Space
Runaway stars may create the mysterious ultraviolet glow around some galaxies
Hot blue stars kicked out of their birthplace can travel thousands of light-years to their galaxies’ hinterlands, new computer simulations show.
By Ken Croswell -
Astronomy
Betelgeuse went dark, but didn’t go supernova. What happened?
Astronomers are anxious to learn why Betelgeuse, one of the brightest stars in the sky, dimmed dramatically, but didn’t explode, in 2019.
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Astronomy
Arecibo Observatory, an ‘icon of Puerto Rican science,’ will be demolished
The telescope, known for cameos in moves like Contact and for fast radio burst observations, was feared to be on the verge of collapse.
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Planetary Science
Farming on Mars will be a lot harder than ‘The Martian’ made it seem
Lab experiments developing and testing fake Martian dirt are proving just how difficult it would be to farm on the Red Planet.
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Space
Planets with many neighbors may be the best places to look for life
Solar systems with many planets in circular orbits suggest a calm life-nurturing past, while single exoplanets with eccentric orbits hint at chaos.
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Planetary Science
Chemical reactions high in Mars’ atmosphere rip apart water molecules
Mars is so dry because its water constant escapes into space. A new study suggests this process occurs in the ionosphere and faster than thought.
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Physics
Giant lasers help re-create supernovas’ explosive, mysterious physics
For the first time, scientists have re-created a type of shock wave that occurs in supernovas.