There must be enormous numbers of planets around the stars in the many galaxies in our observable universe. We may be sure that wonderful things are happening on these planets that the human race never will observe.
Interpretation
The quote highlights the vastness of the universe and the likelihood of unknown wonders existing on distant planets.
Jim Peebles emphasizes the enormity of the universe and suggests that with countless planets orbiting stars across galaxies, there are bound to be extraordinary phenomena occurring beyond our perception. This statement invites us to reflect on the limits of human observation and to appreciate the mysteries of the cosmos that remain hidden from us.
In practice
During a lecture on astronomy, to inspire wonder about the universe.
We often say that our science is objective and accurate, but we don't often say that our science is incomplete - that although the established parts of natural science are very well tested and the evidence makes a compelling case for things being as they've been described, there nevertheless are open questions that we cannot answer.
The black holes of nature are the most perfect macroscopic objects there are in the universe: the only elements in their construction are our concepts of space and time.
If global warming is not contained, the West will face a choice of a refugee crisis of unimaginable proportions, or direct complicity in crimes against humanity.
If we could look through the skull into the brain of a consciously thinking person, and if the place of optimal excitability were luminous, then we should see playing over the cerebral surface, a bright spot with fantastic, waving borders constantly fluctuating in size and form, surrounded by a darkness more or less deep, covering the rest of the hemisphere.
It’s hard to build models of inflation that don't lead to a multiverse. It’s not impossible, so I think there’s still certainly research that needs to be done. But most models of inflation do lead to a multiverse, and evidence for inflation will be pushing us in the direction of taking [the idea of a] multiverse seriously.
The human species took a crucial step forward when its vocal musculature came under operant control in the production of speech sounds. Indeed, it is possible that all the distinctive achievements of the species can be traced to that one genetic change.
Nuclear accidents anywhere can affect people everywhere.
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