Joshua Rapp Learn

Learn more about black holes and what causes them to ring. A massive new study adds evidence to theories by Einstein, Hawking, and others.

Learn about the closest black hole from Earth, Gaia BH1. This recently discovered black hole is dormant, but it’s only 1,600 light-years away.

Prehistoric trees like Ginkgo and monkey-puzzles still have close relatives that go back at least to the time of the dinosaurs.

Captive giant pandas have been seen breaking off twigs and bamboo pieces to scratch hard-to-reach spots, using a crude opposable thumb that other bears don't have

Learn more about the Pyramids of Giza, who they were built for, and the possible methods used to complete them.

What's the size of the Milky Way galaxy? Learn how, depending on your definition, the size can change.

Learn how some of the beaches in Los Angles could soon become the next national park and what species this protected area could help keep safe.

Discover the best U.S. national parks to see the Northern Lights and how often they can occur there.

Joshua Rapp Learn Thu, April 16, 2026 at 1:00 PM GMT+2 7 min read

​​​​​Learn more about the interesting history of African clawed frogs with health and science, and how they became a harmful invasive species that easily took over waterways.