「双语太空播报」来自第一颗系外行星的问候

「双语太空播报」来自第一颗系外行星的问候

While there is much debate over which exoplanet discovery is considered the "first," one stands out from the rest. In 1995, scientists discovered 51 Pegasi b, forever changing the way we see the universe and our place in it. The exoplanet is about half the mass of Jupiter, with a seemingly impossible, star-hugging orbit of only 4.2 Earth days. Not only was it the first planet confirmed to orbit a sun-like star, it also ushered in a whole new class of planets called Hot Jupiters: hot, massive planets orbiting closer to their stars than Mercury. Today, powerful observatories like NASA's TESS space telescope continue the hunt of distant planets.

虽然关于哪颗系外行星的发现被认为是“第一次”存在很多争论,但其中一颗却与众不同。1995年,科学家们发现了51个Pegasi b,这永远改变了我们看待宇宙的方式和我们在其中的位置。这颗系外行星的质量约为木星的一半,其环绕恒星的轨道似乎不可能只有4.2个地球日。它不仅是第一颗被证实围绕类太阳恒星运行的行星,而且还带来了一类全新的行星,称为热木星:比水星更靠近恒星运行的热质量行星。如今,NASA的TESS太空望远镜等强大的天文台继续搜寻遥远的行星。

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