Astronomers have found Gliese 523b, a bizarre exoplanet that combines a huge size, extreme density and a highly unusual orbit ...

Research findings are available online in the journal arXiv. The original story " Astronomers find an ultra-dense mega-Earth ...

This newly found 'mega-Earth' is forcing astronomers to rethink how rocky planets form. Here’s how.

GJ 523b is a 23.5 Earth-mass rocky exoplanet denser than Earth itself, defying every rule about how large planets form.

The planet, named GJ 523b, is around 170 million years old and more than 2.5 times the size of Earth. It has approximately 23 ...

Found in the northern sky, GJ 3378b is a potentially rocky world with liquid water on its surface, receiving 90% of the ...

If Earth is a superorganism that intelligently regulates the conditions for life, humans could be part of its master plan.

It's nearly 170 million years old. It's more than 2.5 times the size of Earth. And it's the first exoplanet discovered and ...

Over the past three decades, computer models of planetary system formation have gone from fairly crude representations to ...

Narrated by Sir David Attenborough, the popular nature docuseries is now airing on BBC America. By Rudie Obias If you purchase an independently reviewed product or service through a link on our ...