Articles on Carl Sagan

Displaying all articles

The universe is filled with countless galaxies, stars and planets. Astronomers may find life one day, but they will need extraordinary proof. ESA/Euclid/Euclid Consortium/NASA, image processing by J.-C. Cuillandre (CEA Paris-Saclay), G. Anselmi

‘Extraordinary claims require extraordinary evidence’ − an astronomer explains how much evidence scientists need to claim discoveries like extraterrestrial life

An astronomer breaks down 3 key components that allow researchers to make groundbreaking discoveries – and decide when results aren’t significant.
Professor Salim Abdool Karim became one of the most visible scientists in South Africa during the COVID pandemic. Photo by Phill Magakoe/AFP via Getty Images

New survey explores what people in South Africa expect of publicly visible scientists – why it matters

When asked to name a living scientist from their own country, more than half of the respondents in both countries did not reply.
Carl Sagan at his Cornell University laboratory in Ithaca, N.Y., in 1974. Santi Visalli, Inc./Archive Photos via Getty Images

Carl Sagan’s scientific legacy extends far beyond ‘Cosmos’

On what would’ve been the astronomer’s 90th trip around the Sun, here’s a look at his legacy as a scientist, advocate and communicator.
US F/A-18 footage of a UFO (circled in red). Creative Commons Attribution-Share Alike 4.0 International license. Parzival191919

Are we alone? The question is worthy of serious scientific study

About 5 percent of all UFO sightings cannot be easily explained by weather or human technology. A physicist argues that there’s compelling evidence to justify serious scientific study and that the skeptics should step aside – for the sake of humanity.
Jodie Foster in Contact. Google Images

‘Contact’ and Carl Sagan’s faith

It is the 20th aniversary of Carl Sagan’s sci-fi film, Contact - and a great time to celebrate its legacy and revisit its main premise of Science vs. Religion.
Will Bill Nye’s new show find a wider audience than Neil deGrasse Tyson’s ‘Cosmos’ did? Vince Bucci/Invision for the Television Academy/AP Images

Can Bill Nye – or any other science show – really save the world?

Popular programming that focuses on science tends to not actually be all that popular. Bringing in new audiences who aren’t already up to speed on science topics is a challenge.
The idea that there’s a moral imperative for humans to expand beyond Earth is echoed by influential proponents of space exploration. Tamara Craiu/Flickr

To boldly go toward new frontiers, we first need to learn from our colonial past

Technology had enabled humans to explore the deep sea, the Earth’s poles, and outer space. But we shouldn’t forget historical lessons about frontiers in the process of traversing them.

Top contributors

More