Astronomy

类星体, 准恒星体

Astronomers observed a distant quasar, providing insights into the early universe.

天文学家观察到了一个遥远的类星体，为早期宇宙提供了见解。

柯伊伯带, 柯伊伯环

Pluto was once considered the ninth planet before its reclassification as a dwarf planet within the Kuiper Belt.

冥王星曾被认为是第九颗行星，后来被重新归类为柯伊伯带中的矮行星。

奥尔特云, 奥尔特星云

The Oort Cloud is a theorized reservoir of comets and icy bodies that extends far beyond the solar system.

奥尔特云是一个理论上的彗星和冰体储存库，延伸到太阳系以外很远的地方。

日冕, 太阳的外层大气

During a total solar eclipse, the corona of the Sun becomes visible as a radiant halo around the moon.

在日全食期间，太阳的日冕会以月亮周围的光环形式变得可见。

黄道

The ecliptic is the path along which the Sun appears to move through the sky over the course of a year.

黄道是太阳在一年中似乎在天空中移动的路径。

视差, 视位移

Astronomers use stellar parallax to measure the distances to nearby stars by observing their apparent shift against more distant background stars.

天文学家利用恒星视差，通过观察附近恒星相对于更遥远背景恒星的明显位移来测量它们的距离。

超新星

A supernova is a powerful explosion that occurs at the end of a massive star's life cycle.

超新星是发生在巨大恒星生命周期末期的强大爆炸。

脉冲星, 旋转中子星

Pulsars were first discovered in 1967 by astronomers Jocelyn Bell Burnell and Antony Hewish.

脉冲星于1967年由天文学家乔斯林·贝尔·伯内尔和安东尼·休伊什首次发现。

对流层, 地球大气的最低层

The troposphere is where most weather phenomena, such as clouds, rain, and storms, occur.

对流层是大多数天气现象（如云、雨和风暴）发生的地方。

平流层, 平流层区域

The stratosphere contains the ozone layer, crucial for absorbing and blocking harmful ultraviolet radiation.

平流层包含臭氧层，对于吸收和阻挡有害的紫外线辐射至关重要。

中间层, 中间层大气

The mesosphere is the layer where meteorites burn up upon entering the Earth's atmosphere.

中间层是陨石进入地球大气层时燃烧的层次。

热层, 热大气层

The thermosphere is where the International Space Station (ISS) and many satellites orbit the Earth.

热层是国际空间站（ISS）和许多卫星绕地球运行的地方。

电离层, 大气中的电离层

The ionosphere reflects radio waves, allowing long-distance communication by bouncing signals off this atmospheric layer.

电离层反射无线电波，通过从这一大气层反弹信号实现远距离通信。

外逸层, 地球大气的最外层

The exosphere marks the boundary between Earth's atmosphere and outer space.

外逸层标志着地球大气层与外层空间的边界。

磁层, 保护磁场区域

Earth's magnetosphere acts as a shield, deflecting charged particles from the solar wind.

地球的磁层充当盾牌，偏转太阳风中的带电粒子。