Explaining some of the mind-bending science behind the popular science fiction trope.
A guided tour of selected luminaries of astronomy, from Ancient Greece to today.
The aquatic monitoring tool has powerful potential.
The recent Australian 2019-2020 bushfires were devastating for people and fauna. Long term, they may not hurt wildlife and ecosystems as much as expected.
It'd be "a step more significant than the colonization of land by our amphibian ancestors some 500 million years ago." But Sagan had reservations.
Take southern California, for instance.
Beyond the tropical waters of the island nation of Palau lies the Ngaraard Pinnacle, a much rarer kind of reef than its colorful coral cousin.
American biology textbooks supposedly became less scientific after the Scopes trial. One scholar argues that this isn't the whole story.
Ever since it entered public consciousness in the 1980s, infrastructure has been synonymous with decline.
The promise of commercial spaceflight raises questions about how untrained travelers will endure the extreme hostility of space.