Tianwen, which means "questions to heaven," is the name given to China's program of robotic Solar System exploration. Tianwen ...

A new dwarf planet, discovered beyond Neptune and described as Pluto's 'cousin,' could void the hypothesis of a Planet X in ...

A team of astronomers believe they may have discovered a new dwarf planet—just like Pluto—on the edge of our solar system.

Astronomers have announced the discovery of a new dwarf planet in our solar system, named 2017 OF201. Located far beyond ...

Using a newly developed adaptive optics system called Cona, scientists peered through Earth's turbulent air to reveal the sun ...

A new member of the solar system has been detected, the second-largest of its kind, suggesting there may be more like it ...

The sun's corona—the outermost layer of its atmosphere, visible only during a total solar eclipse—has long intrigued ...

Astronomers have just discovered a new celestial body in our solar system that could challenge major space theory. 2017 OF201 ...

Scientists are intrigued after spotting a highly unusual celestial object lurking at the very edge of our solar system. It's ...

Astronomers have discovered a mysterious dwarf planet, 2017 OF201, far beyond Pluto. This discovery challenges existing ...

China launches Tianwen-2 to collect asteroid samples and chase a rare comet, marking a bold leap in its high-stakes Solar System exploration mission.

The object’s aphelion – the farthest point on the orbit from the Sun – is more than 1,600 times that of the Earth’s orbit,” said Sihao Cheng of the Institute for Advanced Study, discussing the ...