In the southern hemisphere, they rotate clockwise and in the northern hemisphere, they rotate anticlockwise.

它们在南半球顺时针旋转，在北半球则逆时针旋转。

And if you are around the Indian Ocean or the Southern Hemisphere you're a cyclone.

如果你在印度洋或南半球附近，你就是一个旋风。

You might know it as the Northern Lights but its technically called the aurora borealis in the Northern Hemisphere and the aurora australis or Southern Lights in the Southern Hemisphere.

你可能知道它名字是北极光，但是它名字在北半球中叫做欧若拉，在极光中叫做南极光，在南半球中叫做南极光。

You might know it as the Northern Lights but its technically called the Aurora Borealis in the Northern Hemisphere and the Aurora Australia or Southern Lights in the Southern Hemisphere.

你或许只知道北极光，但更专业法是，它出现在北半球叫做北极光，在南半球就叫做南极光。

Each year, researchers from the World Health Organization and around the world develop one vaccine for the Northern Hemisphere, and one for the Southern.

每年，来自世界卫生组织和世界各地研究人员为北半球开发一种疫苗，为南半球开发另一种疫苗。

We're starting in the largest country in the Southern Hemisphere today.

我们今天从南半球最大国家开始。

You might know it as the Northern Lights, but it's technically called the aurora borealis in the northern hemisphere and the aurora Australia's or Southern Lights in the southern hemisphere.

你可能知道它叫北极光（Northern Lights），但在学术上，北半球极光叫aurora borealis，南半球极光叫aurora Australias或者Southern Lights。

And if you're around the Indian Ocean or in the Southern Hemisphere, you're a cyclone.

如果是在印度洋或南半球，就会产生气旋。

So while that makes a lot of sense for the Southern Hemisphere it doesn't make much sense to the other half of the globe.

因此，相对于北半球人而言，上述只对南半球人较为合理。

In one more week, Sydney, being on the opposite side of the world, leaves daylight saving time and moves its clock back an hour.

再过一星期，位于南半球悉尼结束夏令时，并把时间拨慢一小时。

With the help of the Anglo-Australian Telescope, or AAT, a 12.8 foot or 3.9 meter telescope, and the Gaia space observatory of the European Space Agency, they conducted spectroscopic imaging of the stellar streams in the southern hemisphere.

在 Anglo-Australian Telescope（AAT，一个12.8英尺/3.9米望远镜）和欧洲航天局盖亚空间天文台帮助下，他们对南半球恒星流进行了光谱成像。

And perhaps most significantly, to the marginalized communities and people in the Global South, who frankly don't have time to get stuck in the cycles of doom and gloom.

可能最重要是，对那些只是没时间陷入悲观循环边缘化群体和南半球人民。

When we look at a world map, we think of north as 'up', the USA in the northern hemisphere is above Brazil, in the southern hemisphere.

我们看到世界地图时，自然就认为北方是“上”方，北半球美国在南半球巴西之上。

The first permanent observatory in the southern hemisphere was built, in 1820, near Cape Town.

1820年，南半球第一个永久天文台就在开普敦附近建成。

At almost 3 million square miles, Australia is located below Asia in the Southern Hemisphere.

大洋洲面积近300万平方英里，位于亚洲下方南半球。

And according to experts, southern sightings could become more common with increased solar activity.

据专家称，随着太阳活动增加，这种景象在南半球可能会发生得更加普遍。

People in the Southern hemisphere of Earth.

地球南半球人们。

Officials believe it may be the worst natural catastrophe that's ever hit the southern hemisphere.

官员认为这是南半球有史以来遭遇最严重自然灾害。

It's something developing countries in the global south have long known.

这是南半球发展中国家早就知道事情。

The area's whale population is largest during the summer season in the Southern Hemisphere.

该地区鲸鱼数量在南半球夏季是最多。