Carnegie Institution for Science

Lighting up the plant hormone 'command system'

Light is not only the source of a plant's energy, but also an environmental signal that instructs the growth behavior of plants. As a result, a plant's sensitivity to light is of great interest to scientists and their research ...

Jul 22, 2012
5 / 5 (1) 0 | with audio podcast

Solar system ice: Source of Earth's water

Scientists have long believed that comets and, or a type of very primitive meteorite called carbonaceous chondrites were the sources of early Earth's volatile elements—which include hydrogen, nitrogen, ...

Jul 12, 2012
4 / 5 (7) 32 | with audio podcast

Organic carbon from Mars, but not biological

(Phys.org) -- Molecules containing large chains of carbon and hydrogen--the building blocks of all life on Earth--have been the targets of missions to Mars from Viking to the present day. While these molecules ...

May 24, 2012
4.4 / 5 (7) 2 | with audio podcast

Overhaul in tropical forest research needed

New work from a team led by Carnegie's Greg Asner shows the limitations of long-used research methods in tropical rainforest ecology and points to new technological approaches for understanding forest structures ...

Nov 17, 2014
not rated yet 0

Does dark magma lurk in deep Earth?

(Phys.org) —A key to understanding Earth's evolution is to look deep into the lower mantle—a region some 400 to 1,800 miles (660 to 2,900 kilometers) below the surface, just above the core. Data have ...

Nov 13, 2014
4.5 / 5 (13) 0

Tail discovered on long-known asteroid

A two-person team of Carnegie's Scott Sheppard and Chadwick Trujillo of the Gemini Observatory has discovered a new active asteroid, called 62412, in the Solar System's main asteroid belt between Mars and ...

Nov 11, 2014
4.8 / 5 (11) 8

Cell architecture: Finding common ground

When it comes to cellular architecture, function follows form. Plant cells contain a dynamic cytoskeleton which is responsible for directing cell growth, development, movement, and division. So over time, changes in the cytoskeleton ...

Oct 16, 2014
4.5 / 5 (2) 0

Solar cell compound probed under pressure

Gallium arsenide, GaAs, a semiconductor composed of gallium and arsenic is well known to have physical properties that promise practical applications. In the form of nanowires and nanoparticles, it has particular ...

Sep 25, 2014
3 / 5 (1) 0

Most stars are born in clusters, some leave 'home'

New modeling studies from Carnegie's Alan Boss demonstrate that most of the stars we see were formed when unstable clusters of newly formed protostars broke up. These protostars are born out of rotating clouds ...

Sep 24, 2014
4.5 / 5 (2) 1