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Herbig-Haro 30 is the prototype of a gas-rich "young stellar object" disk around a star. The dark disk spans 40 billion miles (64 billion kilometers) in this image from NASA's Hubble Space Telescope, cutting the bright nebula in two and blocking the central star from direct view.

http://www.jpl.nasa.gov/news/news.php?release=2014-032&rn=news.xml&rst=4029

內湖道館2021陳鵬程

Radiation and winds from massive stars have blown a cavity into the surrounding dust and gas, creating the Trifid nebula, as seen here in infrared light by NASA's Wide-field Infrared Survey Explorer, or WISE.

Rice University researchers determined the amount of time it takes electrons generated by plasmons in a gold nanorod to transfer to a sheet of graphene through spectroscopic analysis of hundreds of particles. The research will help scientists strategize on ways to gather and store electrons from plasmonic particles.

In this image, polymers are cross linked by both click reactions and condensation reactions and present key-lock clickable surfaces for easy biomolecule conjugation.

Short DNA sequences known as “PAM” (shown in yellow) enable the bacterial enzyme Cas9 to identify and degrade foreign DNA, as well as induce site-specific genetic changes in animal and plant cells. The presence of PAM is also required to activate the Cas9 enzyme.