NASA’s Spitzer Space Telescope is celebrating 15 years since its launch on August 25, 2003. This remarkable spacecraft has made discoveries its designers never even imagined, including some of the seven Earth-size planets of TRAPPIST-1. Here are some key facts about Spitzer:
On Aug. 12, 2018, a United Launch Alliance Delta IV Heavy rocket launched NASA's Parker Solar Probe on its way to touch the Sun. Parker Solar Probe is humanity’s first-ever mission into a part of the Sun’s atmosphere called the corona.