The hunt for aliens is on! After a distinguished career in cosmology Professor Martin Rees, the astronomer royal, has taken up the search for extra-terrestrials. Looking for aliens is no longer science fiction - it is a question that's engaging some of the greatest minds in science.
As our knowledge of the universe has increased, we're getting closer to answers. Many scientists now think we live in galaxy with a billion Earth-like planets, many of which may be teeming with life. But what kind of life? Has anything evolved into beings we could communicate with? This film gets inside the minds of the scientists considering one of the most exciting and profound questions we can ask - are we alone in the universe?
Professor Rees thinks we may have our idea of what an alien is like all wrong. If he's right, it's not organic extra-terrestrials we should look for, it's machines.
Ambitious teen orators hone their craft, vying for glory in a prestigious global speech contest. Through dedication and artistry, they prepare to showcase their talents on the ultimate stage.
莎拉·巴洛与琳达·威尔斯，同日在同一家医院产下婴孩。十八个月后，DNA检测证明——
两个婴儿被医院调换了，两位母亲必须面对这个噩梦。
