NASA’s Spectro-Photometer for History, Epoch, and Ices Explorer (SPHEREx) is a new infrared space telescope designed to provide unparalleled insights into the universe’s evolution. Selected in 2019 as part of NASA’s Medium Explorer program, SPHEREx aims to conduct an all-sky spectral survey, studying galaxy formation, water origins, and interstellar ice distribution.
Equipped with cutting-edge spectroscopy technology, SPHEREx can observe wavelengths ranging from 0.75 to 5.0 microns, allowing scientists to peer through dust obstructing visible light. The telescope will scan the entire sky four times over a two-year mission, using spectroscopy to analyze light from hundreds of millions of celestial objects.
SPHEREx’s detectors capture 17 unique wavelength bands, creating a detailed spectrum of 102 distinct hues in every exposure. Its “rainbow-tinted” filters allow for a more complete spectrum of cosmic light, unlike standard filters that block all wavelengths except one specific color.
After launch, the spacecraft underwent successful checks at NASA’s Jet Propulsion Laboratory, confirming all systems are functioning properly. Engineers have also verified that the telescope’s focus is correct, which was permanently set before launch.
SPHEREx is expected to begin operations in late April and will create a three-dimensional map of our cosmos with unprecedented detail. The mission marks a significant leap forward in understanding the universe’s evolution, and astronomers worldwide eagerly await its findings.
Source: https://www.sciencealert.com/new-nasa-space-telescope-unveils-its-first-ever-images