Following in the footsteps of Aristotle and Galileo, NASA scientists look to take the next step in understanding auroras.

Nelson and NASA Deputy Administrator Pam Melroy left the agency on Monday (Jan. 20), the day that Donald Trump began his second term as president. Trump has appointed Janet Petro, who most recently served as director of Kennedy Space Center (KSC) in Florida, as NASA's interim chief.

"The change of seasons causes surface melting far inland from the coastal ice front," glaciologist Christopher Shuman said.

Two NASA rocket missions are taking to the Alaskan skies in hopes of discovering why some auroras flicker, others pulsate, and still others are riddled with holes. Understanding these peculiar features is part of NASA's goal to understand the space environment around our planet,

The new Trump administration could upend NASA's priorities, reshaping the Artemis moon program, climate science funding and the role of commercial space players.

The images were captured using NASA’s Earth Polychromatic Imaging Camera (EPIC), a 4MP CCD camera and telescope on the DSCOVR satellite

He’d let me move the telescope around a bit, and I could ask questions. And he was always wonderful to share information with me. I probably just didn’t ask enough questions.”

About 100 years after astronomer Edwin Hubble's discovered the "magnificent" spiral nebula, the Hubble Space Telescope and NASA scientists have produced the most comprehensive survey of the Andromeda galaxy, or Messier 31. The Andromeda galaxy is approximately 2.5 million light-years away from the Milky Way.

Any vehicle traversing the rocky terrain on Mars needs a sturdy set of wheels. NASA’s Perseverance rover, for example, sports thick aluminum ones covered in cleats to enhance its traction and mobility.

NASA Administrator Bill Nelson has left the building, and while President Trump’s nominee awaits a confirmation hearing, the head of Kennedy Space Center will keep things afloat.

Alabama State University alumnus, Larry K. Mack was recently named director of Human Capital with the Office of the Chief Human Capital Officer at NASA’s Marshall Space Flight Center in Huntsville, Alabama, as well as Mississippi's Stennis Space Center and its Shared Services Center.