This year marks the 55th anniversary of Earth Day! Every year on April 22, people worldwide mobilize to address some of the most urgent threats facing our environment, from climate change to ...

Select an option below to continue reading this premium story. Already a Honolulu Star-Advertiser subscriber? Log in now to continue reading. The exact sequence of events behind eukaryogenesis is ...

Ah, Earth. We may not think about our planet on a day-to-day basis, but the world we live in is a pretty interesting place. The third rock from the Sun—and to this day, the only one with known ...

Earth is full of surprising secrets that sometimes seem like they belong in science fiction stories. From strange natural events to hidden places deep underground or in the oceans, many facts about ...

Earth’s Rotation Day 2026: We see the sun rise and set every day, journeying from day to night and back again. All this seems so normal that we rarely stop to think about the real reason behind it.