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| 关键词：meteor shower NASA astronaut of 2020 |
| 概念： |
| It"s a first for TESS, the Transiting Exoplanet Survey Satellite. The NASA spacecraft just found its first Earth-sized world in a star"s habitable zone. |
| NASA"s planet hunter satellite TESS has discovered an Earth-sized world within the habitable range of its star, which could allow the presence of liquid water. |
| TOI 1338 b is silhouetted by its host stars. TESS only detects transits from the larger star. Credit: NASA"s Goddard Space Flight Center/Chris Smith. Astronomers ... |
| Astronomers have discovered an Earth-sized planet living in its star"s “habitable zone” — a range of distances where conditions allow the presence of liquid ... |
| The planet, dubbed TOI 700 d, was discovered by NASA"s TESS satellite, and is one of only a few Earth-sized planets discovered in a star"s habitable zone so ... |
| NASA plans to purchase even more satellite data about Earth after a pilot program in this field went well, according to a media report. The agency plans to buy ... |
| NASA"s website for all news, images and videos related to Earth science. Your planet is changing. We"re on it. |
| After less than two years since launching, NASA"s planet-hunting mission may not be far out from success. |
| A few months ago a group of NASA exoplanet astronomers, who are in the business of discovering planets around other stars, called me into a secret meeting to ... |
| The planet is in the zone where conditions are ideal for liquid water to be on the surface. |