NASA发现了最快的外行星系统 一种海王星般的行星 移动速度为120万英里 NASA discovers fastest exoplanet system, a Neptune-like planet moving at 1.2 million mph.

美国航天局科学家发现了一个具有海王星型行星的潜在超高速恒星系统,其移动速度为每小时120万英里,可能是所观测到的最快的外行星系统。 NASA scientists have found a potential hypervelocity star system with a Neptune-like planet, moving at 1.2 million miles per hour, possibly the fastest exoplanet system ever observed. 这一系统最初是在2011年数据中提示的,但利用微粒确认了这一系统,在微粒中,行星导致背景恒星位置发生轻微变化。 This system, first hinted at in 2011 data, was confirmed using microlensing, where planets cause slight shifts in background stars' positions. 如果得到证实,这一发现将大大增进我们对外行星及其速度的理解。 If confirmed, this discovery could significantly advance our understanding of exoplanets and their velocities.