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The observatory is prioritizing a massive study of rocky worlds outside our solar system, specifically to discover if planets orbiting closely around stars like TRAPPIST-1 could have air. The campaign, first reported by Mashable, will budget about 500 hours for observation with the Webb telescope...
24.B 考查主旨大意.根据"Following news of the potential for life on the recently-discovered TRAPPIST-1system,there may be another competitor ready to take its place"可知,本文要介绍的是土星的卫星上潜在的生命.故选B. 25.C 考查细节理解.根据"The discovery of this chemical energy source on Enceladu...
Aurora Forecast Next Full Moon Best Telescopes Space Calendar Best Binoculars Lego Star Wars deals Best Star Projectors Best Drones Solar System PlanetsThe Universe Exoplanets TRAPPIST-1 Planet May Be Wet and Life-FriendlyNews By Samantha Mathewson published November 26, 2018 When you purchase throug...
IAU Resolution B5: Definition of a Planet in the Solar System (IAU, 2006). Gillon, M. et al. Temperate Earth-sized planets transiting a nearby ultracool dwarf star. Nature 533, 221–224 (2016). Article ADS Google Scholar Burgasser, A. J. & Mamajek, E. E. On the age of the T...
A series of four studies have shed new light on the properties of the TRAPPIST-1 planetary system, currently our most optimal hope for evidence of biological life beyond the Solar system.
TRAPPIST-1 is a system of seven Earth-sized worlds orbiting an ultra-cool dwarf star about 120 light-years away. The star, and hence its system of planets, is thought to be between five-to-ten billion years old, up to twice as old as our own solar system. For scientists seeking evide...
But the researchers also found that the ice-rich TRAPPIST-1 planets are much closer to their host star than the ice line. The "ice line" in any solar system, including TRAPPIST-1's, is the distance from the star beyond which water exists as ice and can be accreted into a planet...
It’s not looking good for the TRAPPIST planets. The solar storms that hit these worlds are likely just too powerful. Even without these storms, there areother thingsthat may make these planets uninhabitable. They’re still an intriguing target for further study. TheJames Webb Space Telescopesho...
“If we knew that life had started independently in two places in our solar system, then we could be pretty confident that life also got started on some of the tens of billions of planets and moons around other stars in our galaxy,” he said. ...