Reddish dots near the center of this Hubble Space Telescope image form the starburst galaxy PLCK G045.1+61.1
The upper level of Mars’s atmosphere glows green as carbon dioxide molecules break. The European Space Agency’s Trace Gas Orbiter satellite captured this green glow.
NASA’s STEREO-A spacecraft watched as comet ATLAS swooped by the Sun from May 25-June 1.
This illustration shows a magnetar, a dense magnetic neutron star left over after a star goes supernova and explodes.
NASA’s Parker Solar Probe captured images of a ray-shaped structure called a “coronal streamer” emerging from the Sun.
See more amazing space photos here.