Learn about the size, temperature, and colour of each planet, and discover why Pluto is no longer considered a planet.

We went to the public library in Sham Shui Po during our school’s reading week. Hong Kong’s public libraries give us many surprises. Not only is the environment comfortable, but they also have many ...

If Brown’s hidden world is real, Rubin will almost certainly find it or strong indirect evidence that it exists. “In the ...

On January 5, 2005, astronomers at NASA discovered Eris, the second-largest dwarf planet in the solar system. Eris is just slightly smaller than Pluto, and it orbits the sun about three times farther ...

Eris was discovered. It was considered the largest known dwarf planet in the solar system until a year later when Pluto was ...

To register your interest please contact [email protected] providing details of the course you are teaching. Orbiting at the edge of the outer Solar System, Pluto is an intriguing object in ...

As part of its extensive slate of observations, the James Webb Space Telescope (JWST) recently took a closer look at Pluto’s ...

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?

Our order of the solar system mnemonics were forever ruined when poor Pluto was unceremoniously booted out of the planetary club back in… actually, we're not telling you the year, because that's ...

The spacecraft, located more than 24 billion kilometres away, was feared lost to the cosmic ocean after decades of travel. But, as Andrew Griffins writes, thanks to a daring feat of human ingenuity ...