A new interstellar object, A11pl3Z, has been discovered in our solar system, marking the third such object to be observed. It was first discovered zipping near the sun this fall.

I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the ...

But in space or on the Moon, there are no power lines, no sunlight at night and no backup grid. Every system — from life ...

To get a glimpse of the “Swift Planet,” EarthSky suggests waiting for the sun to set before looking west for the planet ...

Solar eclipses occur when the moon gets between Earth and the sun. This causes the moon to cast a shadow onto Earth. A solar ...

The asteroid, also known as 469219 Kamo'oalewa, orbits the sun, so it remains a constant companion of Earth. It is too ...

Recent observations have revealed carbon monoxide venting from the largest comet ever seen, providing clues about its origins ...

Our planet has been asteroid-smashed, melted and eroded, enough that most of its original armor has been long buried. Except ...

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to oblivion ...

Images of Earth and the moon captured by the Tianwen 2 robotic probe are released on Tuesday by the China National Space ...

For some bodies in the solar system, this is quite pronounced: Mars, with an eccentricity of 0.094, ranges from 129 to 155 million miles away from the sun.

Our solar system is a pretty wild place, full of amazing stuff. From the giant Sun to the tiny rocks floating around, there’s ...