Voyager 1 has been exploring the cosmos for decades, but when it reached the edge of the solar system, it found something ...

Our Solar System hides worlds of fire and ice, storms that outlast civilizations, and mysteries still beyond human reach.

Pluto was reclassified as a dwarf planet in 2006. Our solar system may have a ninth planet after all, researchers say. The possibility that an additional planet may be hidden far into the solar system ...

A newly discovered object speeding through our solar system is sparking excitement among astronomers because it’s not from around here. Believed to be a comet, the object is only the third celestial ...

The enigma of the intruder about the same size as Manhattan Island is making astronomers rethink what they know about cosmic ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

Created by the sun, the protective bubble of the heliosphere shields our solar system from harmful radiation. A new mission ...

In late 2017, a mysterious object tore through our solar system at breakneck speed. Astronomers scrambled to observe the fast-moving body using the world's most powerful telescopes. It was found to be ...

Viral rumours claim a massive object is headed for Earth. Space agencies confirm it is a harmless interstellar comet, not ...

Astronomers just caught a rare glimpse of an interstellar comet as it zoomed past Mars. Images of the object, dubbed 3I/ATLAS ...

An interstellar visitor is barreling closer to our sun, giving scientists a rare opportunity to observe an object from outside our celestial backyard. The comet 3I/ATLAS is just the third known object ...

Most comets, including the well-known Halley's, loop through our solar system like cosmic time capsules that formed alongside our Sun and planets around 4.5 billion years ago. But every now and then, ...