In the outer reaches of our solar system, far beyond the orbit of Pluto, lies Sedna, one of the most mysterious objects ever ...

Recent flybys of the fiery world refute a leading theory of its inner structure—and reveal how little is understood about ...

A new probe in development known as GIRO represents a low-cost step toward unlocking the secrets of the outer planets, all ...

A funky effect Einstein predicted, known as gravitational lensing — when a foreground galaxy magnifies more distant galaxies behind it — will soon become common when NASA’s Nancy Grace Roman Space ...

New research on the orbits of these mysterious asteroids near Venus stress the need for better space rock surveillance.

"Our technique is sensitive to any changes in the gravitational field of a body in space, whether that gravitational field changes over time, like the tidal flexing of the moon, or through space ...

S cott Bolton’s first encounter with Io took place in the summer of 1980, right after he graduated from college and started a job at NASA. The Voyager 1 spacecraft had flown past this moon of Jupiter, ...

When Einstein extended SR to account for gravity with his theory of General Relativity (GR), he established how acceleration and gravity are essentially the same and that the flow of time changes ...