Las observaciones en longitudes de onda milimétricas de polvo y guijarros en 74 sistemas estelares sugieren que las migraciones planetarias podrían ser más comunes de lo que pensábamos.
cosmic dust
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Dusty Belts Provide Clearer Insights into Exoplanet Formation
Millimeter-wavelength observations of dust and pebbles in 74 star systems hint that planetary migrations might be more common than we realized.
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Saturn’s Shiny Rings May Be Pretty Young
The rings are fairly shiny despite being bombarded by dust, indicating that they haven’t been around for very long.
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Mercury Isn’t Alone in Orbit, and Scientists Don’t Know Why
A cloud of dust traces the innermost planet’s orbital path. By all accounts, it shouldn’t be there.
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Cosmic Dust May Be Key Source of Phosphorus for Life on Earth
When tiny particles enter Earth’s atmosphere, a newly described series of chemical reactions may lead to production of phosphorus-containing molecules that are essential for biological processes.
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形成黄道光的太空尘埃可能来自火星
朱诺号探测器飞往木星途中的偶然发现表明，形成黄道光的太空尘埃可能来自火星，但这些尘埃是如何从火星或其卫星逃逸出来的仍不得而知。
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The Space Dust That Causes Zodiacal Light Might Come from Mars
Serendipitous observations by the Juno spacecraft while it was en route to Jupiter suggest a Martian source for the dust, but how the dust escapes Mars or its moons remains unknown.
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Dust from Colliding Asteroids Masqueraded as a Planet
New analysis of Hubble Space Telescope images suggests that Fomalhaut b, once believed to be an extrasolar planet, is, in fact, a cloud of dust that likely formed from the collision of enormous asteroids.
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Dust Older Than the Sun Sheds Light on Galactic History
A small pile of dust grains older than the Sun brings new evidence about the rate at which stars are born in the Milky Way.
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Nearby Asteroid Is Mysteriously Devoid of Dust, Lander Reveals
Close-up images of Ryugu, a near-Earth asteroid and the target of the Hayabusa2 sample return mission, reveal a rocky, dustless world that may have formed from a giant collision.