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

As the Trump administration returns to power, NASA faces a crossroads that could redefine its mission for decades to come.

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

"It looks like it has been through some kind of event that caused it to form a lot of stars and then just shut down”

Bill Nelson has stepped down as NASA administrator, ending a half-century of public service. Janet Petro is now the agency's interim chief.

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.

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.

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.

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.

The National Weather Service in Marquette posted a NASA satellite image showing bands of cold air and lake effect snow moving across Michigan.

Shape memory alloys are metals that can return to their original shape after being bent, stretched, heated, and cooled.