Discovered in 1930, Pluto was long considered our Solar System's ninth planet, but was unseated in 2006 after the discovery ...

Astronomers have long speculated about an unseen planet lurking in the solar system's outer edge. This hypothetical world, ...

Being about 36,000 km above earth, China's space-based solar power project will generate 100 billion kwh of energy and is ...

For years, astronomers have toyed with the idea that the Sun hides an extra planet so distant and dim that even the best ...

Astronomers claim to have discovered a new ninth planet in our solar system, according to research led by Terry Long Phan ...

This is probably the most convincing evidence for Planet Nine so far. It is believed that this planet is five to ten times ...

Scientists using data from the James Webb Space Telescope, have made an astounding discovery. They believe extraterrestrial ...

Astronomers may have found a candidate for Planet Nine. This planet is beyond Neptune. The finding could be the first ...

The possibility that an additional planet may be hidden far into the solar system was touted more than a century ago. In 1983 ...

Researchers have found a candidate for the hypothetical Planet Nine, which could be an undiscovered giant planet way out in ...