Carnegie Institution for Science

Solving stem cell mysteries

The ability of embryonic stem cells to differentiate into different types of cells with different functions is regulated and maintained by a complex series of chemical interactions, which are not well understood. Learning ...

Oct 26, 2012 5 / 5 (3) 0 | with audio podcast

Geoengineering: A whiter sky

One idea for fighting global warming is to increase the amount of aerosols in the atmosphere, scattering incoming solar energy away from the Earth's surface. But scientists theorize that this solar geoengineering could have ...

May 31, 2012 4.4 / 5 (5) 16 | with audio podcast

Mercury mineral evolution

Mineral evolution posits that Earth's near-surface mineral diversity gradually increased through an array of chemical and biological processes. A dozen different species in interstellar dust particles that formed the solar ...

Jun 25, 2012 4.8 / 5 (5) 3 | with audio podcast

Plant organ development breakthrough

Plants grow upward from a tip of undifferentiated tissue called the shoot apical meristem. As the tip extends, stem cells at the center of the meristem divide and increase in numbers. But the cells on the periphery differentiate ...

Dec 03, 2012 not rated yet 0 | with audio podcast

Global warming's record-setting pace

The pace of global warming over the last century has been about twice as rapid over land than over the oceans and will continue to be more dramatic going forward if emissions are not curbed. According to ...

Feb 17, 2014 4 / 5 (24) 11