12 Events That Will Change Everything, Made Interactive. Lectures. 32 Nearby Stars. 10 Strange Things About The Universe. Space The universe can be a very strange place.
While groundbreaking ideas such as quantum theory, relativity and even the Earth going around the Sun might be commonly accepted now, science still continues to show that the universe contains things you might find it difficult to believe, and even more difficult to get your head around. Theoretically, the lowest temperature that can be achieved is absolute zero, exactly ? Randy Wayne takes new look at relativity. When resolving why electrons can never beat the speed limit set by light, it might be best to forget about time.
Thanks to insight from studying movement inside a biological cell, it seems that light itself -- not the relativity of time -- may be the traffic cop, according to a Cornell biologist. Any space with a temperature above absolute zero consists of photons.