Research posits that Earth emerged from a completely new structure after a planetary collision, with outer layers of vaporized rock rotating in orbit around the rest of the body.
The first NASA probes to leave our solar system carried a message for extraterrestrial life designed by Carl Sagan that would showcase Earth and humanity.
Since landing on the Red Planet four and a half years ago, Curiosity rover has driven over 10 miles, collecting data and taking images that have greatly expanded scientific understanding of Mars.
Research suggests that gravitational interactions forced Mars out of the asteroid belt and toward the sun about 120 million years after the birth of the solar system.
Video showing the northern lights above Alaska isn't only dazzling footage — it's part of ongoing research into the dynamics of auroras.
A European Space Agency-funded program aims to deploy an autonomous drone that could conduct low-altitude flights over the Red Planet.
The conditions for habitable exoplanets in the TRAPPIST-1 system might depend on the presence of large moons — and Earth reveals clues to why.
New research suggests Saturn's rings may last a billion years before fading away — and Cassini's ring dives will help test the theory.
This is just the latest in a series of records for Whitson, including first female to command the space station, first female to command it twice, and most spacewalks by a woman.
Recent observations that a tiny object in our solar system is a likely dwarf planet has some planetary scientists grumbling again about Pluto's demotion to that status.