A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

Our solar system is a smashing success. A new study suggests that from its earliest period—even before the last of its ...

The solar system is a grand cosmic stage where each planet and moon plays a unique role in a story billions of years in the making. From Mercury’s shrinking surface and Venus’s runaway greenhouse ...

From lava worlds to gas giants, NASA says the variety of these worlds is staggering—and that signs of a further 8,000 distant ...

Voyager 1 has been exploring the cosmos for decades, but when it reached the edge of the solar system, it found something ...

The rate of finding these distant worlds has recently increased, with astronomers scrambling to accommodate the data ...

Astronomers have discovered new evidence that suggests the possibility of an unknown planet in our solar system's farthest ...

Astronomers have confirmed 6,000 exoplanets beyond our solar system, with thousands more awaiting verification, marking a ...

NASA aims to study rocky planets similar to Earth and analyse their atmospheres for biosignatures. The James Webb Space Telescope has already examined over 100 exoplanet atmospheres.

Astronomers have discovered a significant “growth spurt” in a rogue planet outside of our solar system. The free-floating ...