2015-01-02 科学新发现：重新发现冥王星-22

Pockets of sub surface gas will build up and eventually burst through Pluto¹'s frozen surface as geysers, Will G demonstrates how even a small increase in temperature produces a large geyser.

Okay,we're going to put liquid nitrogen into this plastic bottle, and it's very cold at 77 degrees above absolute zero, so as soon as it comes into contact with the hot environment here with the Sun shining and the warm air starts to boiling like crazy, and as it boils, it's going up into gas, giving off a huge amount of gas, and as soon as i screw the lid on, the gas has nowhere to go, except up the tube in the lid and out through this * ice to form a simulated geyser, here it comes, on surface of Pluto we don't know what the scale of those geysers will be, whether they'll be very small like this one or maybe a kilometer tall.

Such  mysteries will be solved on New Horizon's arrival in 2015, the space craft's camera has already been tested 6 months into its epic² journey, capturing perhaps the greatest volcanic³ eruption⁴ ever witnessed in space.

1 Pluto   

n.冥王星

参考例句：

• Pluto is the furthest planet from the sun.冥王星是离太阳最远的行星。
• Pluto has an elliptic orbit.冥王星的轨道是椭圆形的。

2 epic   

n.史诗，叙事诗；adj.史诗般的，壮丽的

参考例句：

• I gave up my epic and wrote this little tale instead.我放弃了写叙事诗，而写了这个小故事。
• They held a banquet of epic proportions.他们举行了盛大的宴会。

3 volcanic   

adj.火山的；象火山的；由火山引起的

参考例句：

• There have been several volcanic eruptions this year.今年火山爆发了好几次。
• Volcanic activity has created thermal springs and boiling mud pools.火山活动产生了温泉和沸腾的泥浆池。

4 eruption   

n.火山爆发；（战争等）爆发；（疾病等）发作

参考例句：

• The temple was destroyed in the violent eruption of 1470 BC.庙宇在公元前1470年猛烈的火山爆发中摧毁了。
• The eruption of a volcano is spontaneous.火山的爆发是自发的。