Other intelligent life-forms will differ greatly in appearance - they may resemble the creature in E.T. or startle us with their beauty - but life itself is common, I'm certain.
Frank DrakeRead
There was a magic about pulsars... no other things in the sky had such labels on them. Each one had its own distinct pulsing frequency, so it could be identified by anybody, including other creatures, after a long period of time and far, far away.
Interpretation
Pulsars are unique celestial objects that can be identified by their distinct pulsing frequencies.
In this quote, Frank Drake highlights the extraordinary nature of pulsars, fascinating astronomical objects that emit regular pulses of radiation. This distinct characteristic allows for their easy identification across vast distances, suggesting that both humans and potentially other life forms can recognize these celestial signals over extended periods and distances in the cosmos.
In practice
During a lecture on astrophysics, you might quote this to illustrate the uniqueness of pulsars.
Other intelligent life-forms will differ greatly in appearance - they may resemble the creature in E.T. or startle us with their beauty - but life itself is common, I'm certain.
While NASA talks about 'Are we alone?' as a number one question, they are putting zero money into searching for intelligent life. There's a big disconnect there.
Forty years as an astronomer have not quelled my enthusiasm for lying outside after dark, staring up at the stars. It isn't only the beauty of the night sky that thrills me. It's the sense I have that some of those points of light are the home stars of beings not so different from us, daily cares and all, who look across space with wonder, just as we do.
Right now, there could well be messages from the stars flying right through this room. Through you and me. And if we had the right receiver set up properly, we could detect them. I still get chills thinking about it.
We send messages all the time, free of charge. There's a big shell out there now, 80 light-years around us. A civilization only a little more advanced than we are can pick those things up.
I, too, am convinced that our ancestors came from Africa.
Having walked on the Moon, I know something about what we need to explore, really explore, in space.
The total disorder in the universe, as measured by the quantity that physicists call entropy, increases steadily over time. Also, the total order in the universe, as measured by the complexity and permanence of organized structures, also increases steadily over time.
It's very important for us to see that science is done by people, not just brains but whole human beings, and sometimes at great cost.
People make their own fates, and if enough of us make our fate to be space explorers, perhaps we can actually get some space exploration done.
Wind power, if not properly planned and sited, can harm birds and bats (although Danish studies of 10,000 bird kills revealed that almost all died in collisions with buildings, cars and wires; only 10 were killed by windmills). Alternative energy sources are absolutely necessary. Global warming will kill birds and bats, as well as other species, in much greater numbers than wind power.
Subscribe for the occasional hand-picked quote. No noise.