New findings bring us closer to knowing the precise timing and duration of Mars' dynamo—a flow of molten metal within the planet's core that produces an electrical current
There is evidence that rivers once coursed across the Martian surface; a new study shows the water flowed long enough to record signs of ancient life as well
Astronomers from the University of Warwick have observed an exoplanet orbiting a star in just over 18 hours, the shortest orbital period ever observed for a planet of its type
Scientists confirmed the find, called TOI 700 d, using NASA's Spitzer Space Telescope and have modeled the planet's potential environments to help inform future observations