Using Gravitational Lensing to Detect Dark Matter

01/14/25 Dark matter accounts for some 27 percent of the universe but is invisible. One promising technique to reveal it is the analysis of gravitational lensing that very occasionally aligns galaxy clusters. Jacqueline McCleary

They Didn't Believe It! Dark Matter

12/02/19 Most of the matter in the universe is invisible --and scientists still do not know what it is. This is a brief story of how the idea of dark matter was very slowly accepted.

What Happened to the Honeybees?

01/20/15 The decimation of honeybee colonies is also a public health warning about pesticides. Chensheng (Alex) Lu

Language Acquisition: How Many Languages Can You Learn?

10/10/18 The acquisition of even one language is very complicated. But there are some --called hyperpolyglotals-- who learn dozens of languages. How does the brain do this? Evelina Fedorenko

2000 Years of Oceans and Climate

11-14-23 The warming oceans will seriously affect global climate. Developing accurate models of how and when those impacts will occur requires analysis of both contemporary and historical data. Hali Kilbourne

How Deep-Sea Mining Threatens Fundamental Ecosystems

05/16/23 Microbial ecosystems sustain all ocean life. That vital foundation will be disrupted by deep-sea mining and the impact may be extensive. Julie Huber and Beth Orcutt

An Update on Those "Forever" Chemicals

10-17-23 WGBH Forum Network webinar PFAS, a group of chemicals added to many everyday products, became a concern years ago among medical researchers, but governmental agencies were slow to impose regulations. Philippe Grandjean

How Effective Are Vitamin D Supplements?

04/23/24 Promoted for years as a means to strengthen bones and lower risk of multiple diseases, improved studies by JoAnn Manson and others revealed that Vitamin D supplements were not very effective at all. Natural sources, including sunshine, are much better. It’s important to understand why. JoAnn Manson

Fracking: The Facts and Issues

11/12/13 A panel of experts presents the known scientific, health and environmental facts about fracking. Phartiyal_Pallavi, Aaron Bernstein, William Moomaw, Andrew Rosenberg

Science Outreach Programs for Youth

10/16/12 How university educational outreach programs encourage high school students' interest in science. Irene Porro

Today's Featured Contributors

Featured Author

Albert-László Barabási, Ph.D.

Reknowned for introducing a paradigm shift in the understanding of complex networks

Featured Guest

Alonso Ricardo, PhD

A biochemist who reconstructs the origin of the cell