Jared Isaacman, a pilot and financial tech billionaire, has commanded two groundbreaking spaceflights, including leading the first private spacewalk. But his most remarkable flying has occurred over the last year. And on Wednesday, he stuck the landing by earning formal Senate approval to become NASA’s 15th administrator.

Jared Isaacman, the billionaire nominated twice to lead the agency, may draw some lessons from the tenure of another NASA leader in the 1990s.

This year sees 25 years of continuous human presence aboard the International Space Station (ISS), and to mark the occasion NASA on Wednesday posted a video tour of this masterpiece of engineering and innovation.

A chunk of rock roughly the size of a city bus is about to skim past our planet, close enough for NASA’s instruments to track every move but far enough that it poses no threat. The flyby is a reminder that Earth’s neighborhood is busy,

Saturn's giant moon Titan may not have a vast underground ocean after all. New research suggests Titan instead may hold deep layers of ice and slush more akin to Earth's polar seas instead of a buried ocean as long suspected.