Recently selected for implementation as the next medium-class mission in NASA's Explorer line, SPHEREx will produce a Near Infrared spectrum for every 6 arcsecond pixel on the celestial sphere.  Through the use of cold.

Current and forthcoming CMB experiments such as the South Pole Telescope, Simons Observatory, and CMB-S4 image, or will image, a large area of the sky on daily scales in the 60-250 GHz band to probe a wide variety of exciting physics in the early universe.

One of the goals of near-term exoplanet observations is to identify habitable rocky planets and characterize their atmospheres. Solar System studies have taught us that the chemistry of the protoplanetary disk from which they formed, the physics and chemistry of the accretion process, and subsequent loss and exchange between the atmosphere and solid planet will all affect the present-day, measurable atmospheric compositions of rocky exoplanets.

I will give an overview of TMT, a 30m-aperture, segmented mirror telescope operating with high efficiency over the entire ground-based UV/optical/near-IR window (0.3-28 microns).  I will summarize its planned instrumentation suite, its current technical status, and its role as the northern hemisphere arm of the proposed US-ELT Program.

Cosmological measurements of the Cosmic Microwave Background radiation, and of the large-scale distribution of galaxies, have taught us a great deal about the origins and content of the universe.