Elusive Dark Matter and the Earliest Galaxies

10/23/24 The James Webb Space Telescope (JWST) and other advanced technologies are providing unprecedented data about the early universe. Astronomers are developing a new understanding of how the earliest stars and galaxies emerged. Julian Muñoz

The James Webb Space Telescope (JWST): A New Era for Astrophysics

10/04/22 The most sophisticated telescope ever created is now producing its first deep-space images, revealing an astonishing universe. Silas Laycock

Reconstructing Evolution: A Molecular Time Machine

02/23/16 Tracing ancient genetic changes through extinctions and speciation events to reconstruct our DNA history. Betul Kacar

The Potential Uses of Deep-Sea Microbes

09/24/15 A leader in the study of exotic microbes at hydrothermal vents explains the significance and the potential of these life forms. Peter Girguis

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

Nutrition for a Healthy Aging Brain

11/08/22. Can corrective nutrition prevent or reverse cognitive decline among older adults with bad diets? Here's a forthcoming study. Susan Roberts

What's Your DNA Profile Doing on a Federal Database?

04/11/11 The public should be more familiar with the broad implications of forensic DNA. Sheldon Krimsky.

Harnassing Geothermal Energy

10/11/22 Geothermal energy is an ideal source of renewable energy, but it can be hard to access. Here's a plan. Paul Woskov

The Urban Future: On Earth...and Elsewhere

12/05/23 GBH Forum Network webinar (noon). By 2050, some 75 percent of the world population will live in cities. Future urban design will emphasize not only innovative architecture and engineering, but optimal environmental and social aspects of city dwelling also. The urban future might also include settlements beyond Earth. Justin Hollander

Today's Featured Contributors

Featured Author

David R. Montgomery, Ph.D.

A leading geologist who connects the relationship between rocks and life

Featured Guest

Mathew Barlow, Ph.D.

A prominent climate scientist whose emphasis is the influence of large-scale climate variability and change, including droughts, floods, and heat waves.