While the Sun is the centre of our solar system, it only makes up about 99.8 per cent of the mass of the entire solar system. So, the Sun's centre is not exactly located on the barycentre of the ...

For only the third time in history, astronomers have detected a new interstellar visitor — an object from another star — blitzing into our solar system.

Four volcanic hotspots in our solar system. Jupiter’s moon Io has more than 400 active volcanoes on its surface. And it's not alone. ... as seen in the animation below.

NASA launched two 12-inch gold-plated copper disks filled with the sounds of children's laughter, heartbeats, and bird calls.

Our Solar System possibly survived a supernova because of how the Sun formed The gas that produce stars also cushion them from the blast of nearby supernovae.

There may be another world lurking between the orbital lines of our solar system. Astronomers in Japan have published their theory of an “Earth-like planet,” dubbed Planet Nine, that’s ...

Observations made of Jupiter’s moon Io during the Juno mission’s flybys helped astronomers confirm how and why Io became the most volcanic world in the solar system.

A cloud of collapsing gas created our Sun, the first thing to form in our solar system. This happened about 4½ billion years ago. Then the planets began to emerge, ...

WASHINGTON, May 30 (Reuters) - Scientists have identified an object about 435 miles (700 km) wide inhabiting the frigid outer reaches of our solar system that might qualify as a dwarf planet ...