For obvious reasons, the Sun’s influence weakens as you get closer to the edge of the solar system. But things might be a lot ...

Astronomers have used the James Webb Space Telescope (JWST) to observe an oddball gas giant exoplanet orbiting a dead star.

Space looks empty until you try to cross it. Far beyond Pluto, where sunlight is faint and the planets are long behind, ...

A pair of new studies are looking to define this boundary as NASA’s New Horizons spacecraft hurtles towards it. They have ...

A Jupiter-size exoplanet orbiting a dead star baffled astronomers. But the planet named WD 1856 b could preview the fate of ...

In the course of studying planets beyond our solar system (6,316 confirmed exoplanets and counting), scientists have ...

What to the solar wind at the boundary between the solar system and the interstellar medium? This is what a recent study ...

Rare images taken by a Japanese space probe during a flyby of a near-Earth asteroid have revealed that the space rock ...

Two faint objects hiding in archival infrared sky maps now sit at the center of a growing scientific argument about whether a ...

Earth receives about 7 percent less light during aphelion than during its closest approach to our star, yet the average ...

The planet should not have survived the star's red giant phase—which sees a star balloon to more than 100 times its original ...