Oct 7, 2019
Earth-like planets orbiting other stars can be 10 billion times dimmer than their host star. To detect these planets and to search for spectroscopic signatures of life in their atmospheres, a space telescope must be used, and the light from the host star must be blocked so the planet comes into... Read More
Aug 27, 2019
Future-generation large space telescopes under study at NASA will require very large, high-resolution, high-sensitivity, low-noise sensors capable of measuring ultraviolet through visible wavelengths.
Feb 4, 2019
This blog post originated in the 2017 Science Mission Directorate Technology Highlights Report (33 MB PDF).
Jul 16, 2018
A team of NASA optics experts has built a picometer spatial metrology system that may enable a major Agency initiative—to locate and image Earth-like planets beyond the solar system and scrutinize their atmospheres for signs of life. Researchers at Goddard Space Flight Center (GSFC), in conjunction... Read More
Aug 25, 2016
Technology Development: Currently, astronomers can investigate Earth-sized exoplanets using only indirect methods such as detecting the changes in starlight as a planet passes in front of its star. The starshade (also known as an external occulter) is a spacecraft that will enable telescopes in... Read More