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.
Damond Benningfield
Damond Benningfield is a freelance science writer and audio producer in Austin, Texas. Among other projects, he writes and produces StarDate, a daily radio program about astronomy and space exploration, and Science and the Sea, a weekly program about marine science. He has been involved with several other short-format radio programs. Benningfield, a native of Austin, also serves as executive editor of StarDate magazine. He has contributed to almost 50 magazines, newspapers, and websites, including Air & Space/Smithsonian, Smithsonian, and Astronomy. He has a bachelor of journalism degree from The University of Texas at Austin.
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A Super Speedy Star May Be Streaking Through Our Galaxy
Astronomers suggest the star is towing along an exoplanet. The system could be traveling fast enough to escape the Milky Way.
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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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Straightening Out Uranus’s Magnetosphere
New analysis of Voyager 2 observations shows that the craft arrived amid gusty solar wind, muddying our ideas about the giant planet.
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Earth May Survive the Sun’s Demise
A distant white dwarf hosts an Earth-like planet in an orbit that might be similar to Earth’s if it survives the Sun’s red giant phase.
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ALMA Watches the Surface of a Star “Boil”
Observations of R Doradus, a nearby red giant, provide the first timescale for convection on the surface of any star other than the Sun.
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Curiosity Digs Up Evidence of a Cold, Wet Martian Past
Amorphous materials, which are rarely studied on Earth, yield insights into the history of Gale Crater and the early Martian environment.
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Waves May Be Crashing on Titan’s Shores
A new study suggests that wind-driven waves could be sculpting the coastlines of the lakes and seas on Saturn’s largest moon.
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A Splashy Meteorite Was Forged in Multiple Collisions
The Winchcombe meteorite was recovered, largely from a driveway, just hours after it fell to Earth, preserving evidence that its early relatives could have filled Earth’s oceans.
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Los planetas enanos muestran evidencias de reciente actividad geológica
Los grandes cuerpos del Cinturón de Kuiper y más allá podrían haber albergardo océanos en la subsuperficiales.