Search Results for: carl sagan

Carl Sagan explains Natural Selection

Carl Sagan explains how the process of natural selection really works.

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Carl Sagan’s Childhood Vision of Space Exploration

Carl Sagan’s passion for astronomy made him one of the most respected and celebrated space geeks of the 20th century. The science legend’s enthusiasm for exploring worlds beyond our own began as a child growing up in Brooklyn. At age … Continue reading

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Carl Sagan Day Approaches

As we approach Carl Sagan Day (6th Nov) we thought you might like to see this excellent tribute from another of Deskarati’s favourite’s James Randi. James Randi talks about one of the most influential scientists of all time; Carl Sagan. Randi and … Continue reading

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Carl Sagan – The Pale Blue Dot

Carl Sagan – The Pale Blue Dot

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Stephen, Arthur and Carl in Conversation

Stephen Hawking, Arthur C. Clarke and Carl Sagan (via satellite) discuss the Big Bang theory, God, our existence as well as the possibility of extraterrestrial life.

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New photo of Earth between Saturn’s rings

That point of light between Saturn’s rings is Earth, captured by NASA’s Cassini spacecraft on April 12. It is reminiscent of the last photo taken by the Voyager I spacecraft before engineers shut off its imaging systems. Carl Sagan had … Continue reading

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This new equation might finally unite the two biggest theories in physics

One of the most stubborn problems in physics today is the fact that our two best theories to explain the Universe – general relativity and quantum mechanics – function perfectly well on their own, but as soon as you try … Continue reading

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Why wormholes (probably) don’t exist

worm hole

Sometimes you’ll hear wormholes referred to as “Einstein-Rosen bridges”, referring to a 1935 paper by Billy Bob Albert Einstein and Nathan Rosen. John Archibald Wheeler and his colleagues did a lot of work on wormholes in the 1950s and ’60s, … Continue reading

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The Pale Blue Dot – Updated

We are pretty sure that most of our regulars on Deskarati will have seen the video by Carl Sagan called The Pale Blue Dot. So when we saw this new update and were blown away by it, we thought you … Continue reading

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Carolyn Porco: This is Saturn

Carolyn C. Porco (born March 6, 1953) is an American planetary scientist known for her work in the exploration of the outer solar system, beginning with her imaging work on the Voyagermissions to Jupiter, Saturn, Uranus, and Neptune in the 1980s. She leads the imaging science team on the Cassini mission currently … Continue reading

Posted in Biography, Cosmology, Science | 1 Comment

Richard Feynman: The Comic Physicist

An often overlooked aspect of physics research at the highest levels is a long-standing tradition to be as whimsical as possible when describing breakthrough discoveries. Thus, we have Albert Einstein’s comment that “Reality is merely an illusion, albeit a very … Continue reading

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Royal Institution Christmas Lectures

The Royal Institution Christmas Lectures are a series of lectures on a single topic, which have been held at the Royal Institution in London each year since 1825. The lectures present scientific subjects to a general audience, including young people, … Continue reading

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The Efficiency of Hydrogen Fusion

Carl Sagan famously said, “We are all star-stuff.” That’s true, and it’s thanks to the efficiency of hydrogen fusion. The universe is mostly hydrogen. To produce more complex elements—in particular, the ones that make life possible—there has to be a … Continue reading

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What is Humanism?

Humanism is an approach in study, philosophy, world view or practice that focuses on human values and concerns, attaching prime importance to human rather than divine or supernatural matters. According to Greg M. Epstein, “Humanism today can be categorized as a movement, a philosophy of life or worldview, … Continue reading

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Erich von Däniken

Erich Anton Paul von Däniken (born 14 April 1935 in Zofingen, Aargau) is a Swiss author best known for his controversial claims about extraterrestrial influences on early human culture, in books such as Chariots of the Gods?, published in 1968. Däniken is one of the main … Continue reading

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The Drake Equation

The Drake equation (sometimes called the Green Bank equation or the Green Bank Formula) is an equation used to estimate the number of detectable extraterrestrial civilizations in the Milky Way galaxy. It is used in the fields of exobiology and the Search for Extra Terrestrial Intelligence (SETI). The equation was devised by Frank … Continue reading

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Titan Has More Oil Than Earth

Thanks to Phil Krause for this interesting Nasa article – Deskarati – Saturn’s orange moon Titan has hundreds of times more liquid hydrocarbons than all the known oil and natural gas reserves on Earth, according to new data from NASA’s … Continue reading

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The Frailty of Knowledge

In The Frailty of Knowledge, Carl Sagan takes us back in time to the great Egyptian Library of Alexandria, the centre of knowledge and reason in the ancient world. Sagan tells us the story of the demise of the Library, … Continue reading

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Voyager, the love story

One day, years from now–or maybe billions of years, no one knows–aliens might be surprised to run across an old spaceship from Earth. Improbably far from home, the ancient probe is space cold, its nuclear power source spent long ago; … Continue reading

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“WOW!” The Infamous 1977 ‘Extraterrestrial Signal’

We still have no idea if this was our first call from ET. As a big fan of Carl Sagan’s book ‘Contact’ and the susequent film we like to think it might be – WOW – Deskarati August 15, 1977: … Continue reading

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