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.
stars
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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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Small Stars Produce Mighty UV Flares
Stronger-than-expected ultraviolet flares could either provide exoplanets the sparks of life or prevent them from having life at all.
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Anemic Stars Don’t Host Super-Earths
Planetary systems need the right stuff to make planets, and some stars just don’t have it.
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Las estrellas lejanas resaltan minilunas en los anillos de Saturno
Al estudiar cómo la luz de las estrellas se atenúa al viajar a través de las partículas de hielo que rodean a Saturno, investigadores han hecho foco en muchas estructuras pequeñas en los famosos anillos del gigante gaseoso.
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Magnetic Barriers Might Explain Mysterious Hot Jupiters
Hot Jupiters might end up very close to stars because a magnetic field halts their progress—and future observations could confirm the idea.
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Distant Stars Spotlight Mini Moons in Saturn’s Rings
By studying how starlight attenuates as it travels through the icy particles encircling Saturn, researchers have zoomed in on a host of small structures in the gas giant’s famous rings.
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Passing Stars Shorten Earth’s Time Horizon
Stars in the solar neighborhood could jostle planetary orbits, making it harder to turn back the clock and examine Earth’s orbital or climate history.
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Rogues’ Gallery Comes in Pairs
A new trove of free-floating planets, smaller and paired up more than expected, challenges stellar and planet formation models.
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Astronomers May Have Spotted the Birth of a Planet
Lumps of dust are spiraling around a young star 5,000 light-years away. They could be Jupiter-like planets in the making.