The ringed gas giant Saturn has officially replaced Jupiter as the planet in our solar system with the most moons. The ...

This is the fourth comet Gröller has discovered, but given its extraordinary distance, it was the most exciting find, he says ...

A newly identified Kuiper Belt trio, possibly only the second of its kind, could provide strong evidence that these distant ...

Scientists have discovered a potential three-body system in the Kuiper Belt, the Altjira system, challenging planet-formation theories.

The farthest spacecraft from Earth are shutting off instruments in interstellar space, but their mission in interstellar ...

The puzzle of predicting how three gravitationally bound bodies move in space has challenged mathematicians for centuries, and has most recently been popularized in the novel and television show '3 ...

Back in 2006 our Solar System lost a planet, not because it disappeared, but because it was reclassified. Pluto, now considered a dwarf planet, failed one of the three tests the International ...

The triple star system is sending comets, asteroids and meteors our way, and the number of interstellar objects entering the solar system will rise.

A seven-luminaries-deep parade of planets will line up and light up the night sky this week, folks. Just after sunset on Feb.

This phenomenon, known as a "planet parade," will feature Mercury, Venus, Mars, Jupiter, Saturn, Uranus and Neptune all ...

Dr Shyam Balaji, researcher in astroparticle physics and cosmology at King’s College London, said: “On 28 February a ...