President Donald Trump signed an executive order that aims to return astronauts to the moon through NASA’s Artemis space program with an eye toward building a permanent lunar presence.

Flying edge-on, the satellite’s pancake shape will minimize aerodynamic drag as the DiskSats encounter thicker air below 250 miles. Continual pulsing from the satellites’ electric thrusters will allow the DiskSats to maintain altitude as they glide through the uppermost layers of the atmosphere.

Jared Isaacman has poured fuel on the new space race between Elon Musk and Jeff Bezos, saying NASA will pick whichever lunar lander is ready first.

Data from NASA's Parker Solar Probe has enabled astronomers to map the unssen surface of the sun's atmosphere for the first time.

When the Perseverance rover arrived on Mars nearly five years ago, NASA officials thought the next American lander to take aim on the red planet would be taking shape by now.

Jared Isaacman, founder of Draken International and NASA’s 15th Administrator, joins ABC News Live to discuss his priorities and plans for the space agency following his swearing-in.

Brian Smith was placed on indefinite leave from Ohio on Dec. 1. Dallas Cowboys defensive coordinator Matt Eberflus announced that he will be moving to the coaches’ booth for the final three games. Looking for help in your fantasy football lineup? Scott Pianowski has you covered for Week 16.