Over the last decade, wildfires have worsened ground-level ozone pollution across much of the contiguous United States, creating unhealthy air far...

Jessica Taveau    The first mission devoted to observing the Martian atmosphere and its evolution, NASA’s MAVEN (Mars Atmosphere and Volatile Evolution), has ended...

Jessica Taveau    Registration is open for media to cover the arrival of NASA’s Nancy Grace Roman Space Telescope at the agency’s Kennedy Space Center in Florida in...

Ashley Balzer    Engineers at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, have completed their final inspection of a key element for the agency’s Nancy...

   This NASA Hubble Space Telescope image features the active spiral galaxy Messier 88 (M88), located about 63 million light-years away.

Ashley Balzer    NASA’s Nancy Grace Roman Space Telescope is poised to make a major advance in the hunt for worlds outside our solar system, known as exoplanets....

   Which comes first, the galaxy or the black hole? We don’t know, but scientists have long thought it could be the galaxy: Large stars within an...

   This NASA Hubble Space Telescope image features the dwarf irregular galaxy ESO 490-017, roughly 12,000 light-years in diameter and some 23 million...

   Look closely at this image from NASA’s Hubble Space Telescope and you’ll see galaxies of various shapes and sizes clustered together toward the...

   On May 21, ground controllers powered down NASA’s AWE (Atmospheric Waves Experiment) instrument, bringing the data collection phase of the mission to...