Carl Sagan

Many times we discuss great scientists based on whether they were given a Nobel Prize, or if a subatomic particle is named after them.

Obviously, this also pays due respect to people who, with their work, really advanced scientific knowledge. They made great discoveries. They added to our knowledge.

“As Carl Sagan said some time ago, extraordinary claims require for their validation extraordinary evidence”

The denial of science has entered the highest levels of government, and no matter what the data says, the U.S. promises to cease all efforts to curtail, or even study, climate change. Astrophysicist Katie Mack calls this retrenchment a form of “data nihilism,” writing in an exasperated tweet, “What is science? How can a thing be known?