Launch Schedule
NASA’s ASTHROS Mission
When
No Earlier Than December 2024
![This illustration shows a high-altitude balloon ascending into the upper atmosphere.](https://www.nasa.gov/wp-content/uploads/2023/09/asthros.jpeg)
ASTHROS (Astrophysics Stratospheric Telescope for High Spectral Resolution Observations at Submillimeter-wavelengths) is a high-altitude balloon mission for studying astrophysical phenom