NASA's latest infrared space telescope, SPHEREx -- short for Spectro-Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer -- will assemble the world's most complete sky survey to better explain how the universe evolved.

The $488 million mission will observe far-off galaxies and gather data on more than 550 million galaxies and stars, measure the collective glow of the universe, and search for water and organic molecules in the interstellar gas and dust clouds where stars and new planets form.

The 1107-lb., 8.5 x 10.5-foot spacecraft is slated to launch March 2 at 10:09 pm (ET) aboard a SpaceX Falcon 9 rocket from Vandenberg Space Force Base in California. (Catch the launch on NASA+ and other platforms.) From low-Earth orbit, it will produce 102 maps in 102 infrared wavelengths every six months over two years, creating a 3D map of the entire night sky that glimpses back in time at various points in the universe's history to fractions of a second after the Big Bang nearly 14 billion years ago. Onboard spectroscopy instruments will help determine the distances between objects and their chemical compositions, including water and other key ingredients for life.