This multi-wavelength image from NASA shows a universe full of galaxies that are various shapes, colors and sizes. Most are small while a handful are somewhat larger. A few stars are also scattered across the image. NASA/ESA/CSA/A. Pagan (STScI)/R. Jansen (ASU)/NASA hide caption
NASA's Wide Field Infrared Survey Telescope is set to launch in 2027. This innovative telescope is designed to investigate long-standing astronomical mysteries, such as dark energy, the force behind the universe's expansion. NASA hide caption
The star in the center, as seen by the Hubble Space Telescope, is known as V1331 Cyg and is located in the dark cloud LDN 981. Karl Stapelfe/ESA/Hubble, NASA hide caption
Physics is full of big, interesting questions about phenomenon such as black holes. This illustration shows the supermassive black hole at the heart of the active galaxy NGC 3783 in the southern constellation of Centaurus. M. Kornmesser/ESO hide caption
Science has been working to shed light on the nature of the Universe for 400 years. Alberto Pomares/iStockphoto.com hide caption
Remnants of Tycho's Supernova, seen in an X-ray/infrared composite image. The supernova was observed by Tycho Brahe and other skywatchers in 1572.
MPIA/NASA hide caption