The Formation of Stars and Planets

09/15/15 How stars and their planetary systems form, and what the New Horizons mission to Pluto will reveal about the "fossil record" of our own solar system. Scott J. Kenyon

Explaining and Measuring the Expanding Universe

08/28/20 The universe is expanding at an incredible rate, and dark energy is thought to be the cause. Astronomers observe and measure this mystery with very sophisticated equipment. Paul Martini

All about Jellyfish

08/10/20 Get the real facts about those about lion's mane jellyfish near Massachusetts beaches, but get the real science about jellyfish in general: their amazing biology and their role in marine ecosystems. Laurence Madin

Microbe Evolution

02/12/13 How microbes and their communities evolve and what the process means for us. Christopher Marx

Addressing the Global Water Shortage

03/11/25 Due mainly to climate change and wasteful agricultural practices, the supply of freshwater is rapidly diminishing across the globe. Governments must quickly develop advanced conservation and sustainability policies. Jay Famiglietti

Coastal Ecosystems and Climate Change

12/17/14 An international expert explains how coastal ecosystems function and how they are adjusting to current stresses. Brian Helmuth

Herbal Medicines Decoded: How Plants That Soothe and Cure Do It

09/10/19 From ancient traditions to modern pharmaceutical labs, certain plants have been valued for their therapeutic qualities. The Weng Lab analyzes the unique chemistry --and evolution-- of such plants. Jing-Ke Weng

Social Media and Mental Health

02/21/23 There is increasing concern about the impact of social media on mental health, especially among young people. What causes this problem and how should it be addressed? Jacqueline Sperling

Replacing Plastic: The Merits of Shrilk

02/04/14 Materials scientist Javier Fernandez discusses the "plastisphere" crisis and how it motivated the development of biodegradable "shrilk."

A Potential Solution to the Methane Problem

03/29/22 An innovation attracting great interest: an abundant, inexpensive clay might be used to remove the greenhouse gas methane from the atmosphere. Desiree Plata

Today's Featured Contributors

Featured Author

Andy Knoll, Ph.D.

An acclaimed scientist and award-winning author, whose books on the relationship between geology, environment and evolution are both brilliant and accessible.

Featured Guest

Aaron Kesselheim, M.D., J.D., M.P.H.

A research physician who brings his combined medical and legal expertise to the evaluation of regulatory agencies