Does time exist in space? © Getty Images

Does time exist in space?

Our science is based on the assumption that the laws of physics, and the passage of time, exist throughout the Universe.

Asked by: Alex Sutherland, Banffshire

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Time is a complex subject for physicists. Einstein showed that time and space are intimately linked and that the progression of time is relative, not absolute. Although there is nothing in physics that says time must flow in a certain direction, scientists generally agree that time is a very real property of the Universe. Our science is thus based on the assumption that the laws of physics, and the passage of time, exist throughout the Universe.

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