Who will speak for Planet Earth?

The Apollo pictures of the whole Earth conveyed to multitudes something well known to astronomers: On the scale of the worlds - to say nothing of stars or galaxies - humans are inconsequential, a thin film of life on an obscure and solitary lump of rock and metal

I think if we ever reach the point where we think we thoroughly understand who we are and where we came from, we will have failed.

Extraordinary observations require extraordinary evidence to make them believable.

One glance at a book and you hear the voice of another person, perhaps someone dead for 1,000 years. To read is to voyage through time.

The Earth is a very small stage in a vast cosmic arena.

But down deep, at the molecular heart of life we're essentially identical to trees.