你知道太阳活动是有周期的。
科学家今天宣布，当我们的恒星脱离最近的太阳黑子活动周期时，太阳最有可能进入冬眠。
When our star drops out of its latest sunspot activity cycle, the sun is most likely going into hibernation, scientists announced today.
科学家们得出结论，太阳风的活动必须遵循相同的周期。
The scientists concluded that the solar wind activity must follow the same cycle.
这是在新的太阳活动周期中最大的一次爆炸。
如果高速气流的变化真地是太阳活动最重要的指示物，那么新的太阳活动周期还未露端倪。
If a change in the jet stream really is a leading indicator of solar activity, then no new cycle is on the horizon.
大多数天文学家认为太阳活动周期会持续，但强度会发生严重的下滑，相比19世纪所看到的那样。
Most astronomers think that the solar cycle will proceed, but at significantly depressed levels of activity similar to those last seen in the 19th century.
此外，太阳并不完全受控与它的活动周期，太阳黑子，耀斑以及其他种类的喷发随时可能发生。
What's more, the sun isn't entirely governed by its cycles-sunspots, flares, and other eruptions can occur at any time.
然而，这一次，向两极移动的冕流却慢腾腾的，它意味着我们可能将在2013年经历一个非常弱的太阳活动峰值——这也许会延迟甚至阻止下个太阳活动周期的开始。
This time, however, the rush to the poles is more of acrawl, which means we could be headed toward a very weak solar maximum in2013—and it may delay or even prevent the start of the next solar cycle.
磁场的变化是像太阳这样的恒星表面黑子活动周期的根源，尽管经过几十年的认真研究之后，地球人仍然对其知之甚少。
The magnetic activity of stars like sun, which is the root cause of the sunspot cycle, is still poorly understood even after decades of intense study.
太阳的活动通常在一个还算规则的周期内上下浮动。
The sun's activity usually ebbs and flows on a fairly predictable cycle.
放在一起看，三条证据有力地表明第25太阳活动周期多半不存在，科学家在新墨西哥拉斯克鲁塞斯召开的美国天文学会大会上如是说。
Taken together, the three lines of evidence strongly hintthat Solar Cycle 25 may be a bust, the scientists said today during a meetingof the American Astronomical Society in Las Cruces, New Mexico.
美国科学家日前表示，新的电脑模型显示，下一个太阳活动周期将比先前一个太阳活动周期更加活跃，它所引发的磁暴对地球上通讯系统的破坏也将更大。
A new computer model suggests the next solar cycle will be more active than the previous one, potentially spawning magnetic storms that will be more disruptive to communication systems on Earth.
太阳活动的周期是11年。新数据表明，在一个周期末期太阳活动趋弱时，抵达地球的光与热的量增加而不是减少了。
As solar activity waned at the end of one of the Sun's 11-year cycles, the new data shows the amount of light and heat reaching the Earth rose rather than fell.
虽然，太阳活动目前在其标准的11年周期中逐渐增加，这种固定的周期持续了几千年。
While solar activity is currently increasing in its standard 11-year cycle, this same cycle has occurred over millennia.
这样的周期活动以太阳黑子在其中纬度出现开始并随着黑子移动到赤道附近而终结。
Such cycles begin with spots appearing in mid-solar latitudes and end with them near the equator.
据希尔所说，他们的数据表明第25太阳活动周期会延迟至2022年才开始——大约迟到2年——或者根本不会发生。
According to Hill, their data suggest that the start ofSolar Cycle 25 may be delayed until 2022—about two years late—or the cycle maysimply not happen.
由于太阳活动的正常消长变化没能完全符合我们过去预计的周期，最近几年许多人太阳内部动态活动的课题产生了浓厚的兴趣。
The sun's internal dynamics were the subject of intense interest over the last few years as the normal waxing and waning of solar activity did not follow past cycles as closely as anticipated.
现在是第24个太阳活动周期，开始于2008年。
其他学者则预测这将会是有记录以来太阳周期中活动最频繁的一次。
Others predicted that it would be the most active solar cycle on record.
虽然以11年为周期的太阳黑子活动将在2013年达到顶峰之后，将缓慢衰落。
Sunspot activity, which follows an 11-year cycle, is due to peak in 2013 after which it will start to wane slightly.
在第24个周期开始前，人们通过太阳的扭转振动的位置和强度准确的预知了第24周期内太阳黑子活动的推迟。
Before cycle 24 commenced, the position and strength of the torsional oscillation correctly predicted the late arrival of this cycle's sunspot activity.
历史表明一个新太阳活动周期应该开始于2019年。
然而令人们感到疑惑的是，最近结束的上一个太阳周期，太阳活动低潮期相对特别长，太阳活动极其微弱。
Puzzlingly, the last solar cycle, which ended recently, had an especially long and weak low point that scientists had difficulty explaining.
太阳活动的盛衰以11年为一个周期。
然而，太阳有时也会生气，之后这种太阳活动周期就停止了。
Sometimes, though, the sun sulks and this solar cycle stops.
人们断定最近一次的太阳周期将会是有记录以来活动最频繁的一次。
The latest solar cycle was supposed to be the most active on record.
太阳活动的盈亏周期大约是11年。
Solar activity waxes and wanes according to approximately 11-year cycles.
由于太阳正逐渐进入活跃时期，太阳黑子的活动周期为11年到12年。
The chances of a disruption from space are getting stronger because the sun is entering the most active period of its 11 to 12-year natural cycle.
由于太阳正逐渐进入活跃时期，太阳黑子的活动周期为11年到12年。
The chances of a disruption from space are getting stronger because the sun is entering the most active period of its 11 to 12-year natural cycle.
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