Euclid Mission to Explore Dark Energy

Euclid is an ESA mission to map the geometry of the dark Universe. The mission will investigate the distance-redshift relationship and the evolution of cosmic structures.  Penn researchers are part of the Euclid science team.


David Rittenhouse Laboratory - Walnut Street view

DRL is the academic home of the Mathematics and Physics and Astronomy departments at Penn.  It is named for David Rittenhouse, a noted American astronomer born near Germantown, Philadelphia.  Rittenhouse was one of the first to build a telescope in the United States and was Professor of Astronomy at Penn starting in 1779.


Dipole magnets at the Large Hadron Collider

Protons at the LHC are accelerated to 7 TeV (the equivalent energy to an electron subjected to the potential of more than 4.5 trillion batteries laid end-to-end).  To circulate such powerful beams of particles, the LHC employs superconducting dipole magnets like those shown to provide a magnetic field almost 100,000 times stronger than the earth's magnetic field.


DNA-Functionalized Carbon Nanotube Chemical Sensors

The group of Professor Charlie Johnson has developed chemical sensors using single-walled carbon nanotubes wrapped with single-stranded DNA adsorbed to the nanotube's outer wall.

Jammed States of Matter

Almost any system composed of discrete pieces large enough that thermal fluctuations can be ignored can have a jamming transition: a point at which fluid flow is impeded by a change of state into a stable amorphous solid.  The behavior is general enough to explain a pile of sand, a jar of candies, or cars in a traffic jam.  Professor Andrea Liu was involved in recent theoretical breakthroughs in the study of this phenomenon.