Carl Sagan popularized the Cosmic Calendar as a method to visualize the chronology of the universe, scaling its current age of 13.8 billion years to a single year to help intuit it for pedagogical purposes.

2019年11月19日 · Sagan begins by noting how pre-scientific cosmologies arise from our early experience. But “then science came along and taught us that we are not the measure of all things.” But Sagan wants the truth science gives not illusory comfort of religion.

2023年11月9日 · Carl Sagan exploded onto the space scene, leaving a lasting legacy. Explore his contributions to the cosmos and how his life’s work continues to inspire future generations.

We live in Carl Sagan’s universe–awesomely vast, deeply humbling. It’s a universe that, as Sagan reminded us again and again, isn’t about us. We’re a granular element. Our presence may even...

2024年11月4日 · Carl Sagan (1934 – 1996) played a leading role in the American space program from its very beginning. He was a consultant and adviser to NASA beginning in the 1950s — he briefed the Apollo astronauts before their flights to the Moon.

2025年2月3日 · Sagan attended the University of Chicago, where he earned a bachelor’s and a master’s degree in physics in 1955 and 1956, respectively, and a doctorate in astronomy and astrophysics in 1960.

2021年11月22日 · Carl Sagan was a scientist and educator best known for his TV series Cosmos, the Pale Blue Dot image of Earth and quotes about life and Earth.

Carl Sagan (1934-1996), American planetary astronomer, exobiologist, popular educator, and advocate for science. Portrait of Carl Sagan courtesy of Andy Levin/PARADE. To hundreds of millions of people, Sagan communicated his passion for the universe of science.

The Carl Sagan Institute was founded in 2015 at Cornell University to find life in the universe and explore other worlds – how they form, evolve and if they could harbor life both inside and outside of our own Solar System.