Potentially habitable exoplanets are so incredibly common that astronomers have started to consider more unusual situations ...

In billions of years, our Sun will expand into a red giant, likely engulfing Earth before shrinking into a white dwarf—a dense, glowing stellar remnant. While this process destroys most planets ...

Astronomers are on the hunt for a mysterious ninth planet, known as Planet Nine, which could change our understanding of the solar system. Is this hidden world real, or just a myth?

A blue atmosphere, smooth areas, and youthful mountain ranges - this dwarf planet is full of surprises. When NASA's New Horizons probe flew past Pluto in July 2015, the images it returned astonished ...

Best known for driving demotion of Pluto to dwarf planet ... To me, the search for Planet 9 is the continuation of what humans have done forever. Humans explore. The first humans, I’m sure ...

Using data from NASA's now-defunct Dawn spacecraft, scientists have discovered that the dwarf planet Ceres, the second wettest body in the solar system after Earth, could have an interior reserve ...