This is an online informational page for thee Two Micron All Sky Survey (2MASS) project at IPAC/Caltech. The page is intended for use by the astronomical community and the public. 2MASS is a collaboration between IPAC and UMass.

The Cosmic Hot Interstellar Plasma Spectrometer (CHIPS) is a University-Class Explorer (UNEX) mission funded by NASA. It will carry out all-sky spectroscopy of the diffuse background at wavelengths from 90 to 260 with a peak resolution of /150 (about 0.5 eV). CHIPS data will help scientists determine the electron temperature, ionization conditions, and cooling mechanisms of the million-degree ...

All sky neutral hydrogen survey.