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

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

Jennifer Kesse’s disappeared on Jan. 23, 2006 and her family has been searching for answers since then. Here's everything to know about who Jennifer Kesse was, what happened when she went missing and the latest on the investigation.

"We must honor their sacrifice by fortifying our commitment to safety and excellence as new generations of space explorers, follow their footsteps."

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.

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

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.

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.”

For the past week, an uncrewed lunar lander has been journeying through outer space on a 60-day mission to the moon on behalf of NASA.

When NASA and the Indian Space Research Organization's (ISRO) new Earth satellite NISAR (NASA-ISRO Synthetic Aperture Radar) launches in coming months, it will capture images of Earth's surface so detailed they will show how much small plots of land and ice are moving,

New Hampshire teacher Christa McAuliffe and other astronauts were honored Thursday by NASA during its Day of Remembrance.