But with improvements in instruments, and the launching of satellites into space, in recent years all kinds of cosmological theories have been confirmed or modified. Observational experiments can clear up areas of theoretical uncertainty, and this is why laboratories in many countries are collaborating as well as competing with each other.
隨著儀器進展與衛星伸入太空，各種天文理論被證實或修正，靠著觀測實驗，更可以釐清理論模糊之處，各國實驗室因此一邊互相合作，一面也暗自較勁。