This artist's illustration shows a blue quasar at the center of a galaxy.
The NICER detector on the International Space Station recorded 22 months of nighttime X-ray data to create this map of the entire sky.
NASA's Spitzer Space Telescope captured this mosaic of the star-forming Cepheus C and Cepheus B regions.
This is an artist's rendering of ancient supernovae that bombarded Earth with cosmic energy millions of years ago.
Galaxy NGC 4485 collided with its larger galactic neighbor NGC 4490 millions of years ago, leading to the creation of new stars seen in the right side of the image.
Astronomers developed a mosaic of the distant universe, called the Hubble Legacy Field, that documents 16 years of observations from the Hubble Space Telescope. The image contains 200,000 galaxies that stretch back through 13.3 billion years of time to just 500 million years after the Big Bang.
A ground-based telescope's view of the Large Magellanic Cloud, a neighboring galaxy of our Milky Way. The inset was taken by the Hubble Space Telescope and shows one of the star clusters in the galaxy.
One of the brightest planetary nebulae on the sky and first discovered in 1878, nebula NGC 7027 can be seen toward the constellation of the Swan.
The asteroid 6478 Gault is seen with the NASA/ESA Hubble Space Telescope, showing two narrow, comet-like tails of debris that tell us that the asteroid is slowly undergoing self-destruction. The bright streaks surrounding the asteroid are background stars. The Gault asteroid is located 214 million miles from the Sun, between the orbits of Mars and Jupiter.