solar system

Artist's depiction of our Sun, along with its hypothesised solar companion. (Image: M. Weiss)

Does Our Sun Have a Long-Lost Twin?

The strange configuration of material in the outer reaches of our solar system has led a team of scientists to speculate that the Sun had a companion during its early days. Intriguingly, this scenario could explain the presence of the hypothesised Planet Nine, should it actually exist.

The rugged high rim of Pluto's Sputnik Planitia basin and the nitrogen-methane ice sheet that partially fills its floor. (Image: Lunar and Planetary Institute/Paul Schenk/NASA/New Horizons)

See 14 Mind-Blowing Places in Our Solar System

Our solar system is an undeniably fascinating place, featuring an assortment of celestial oddities and wonders. Between the planets, moons, comets, and asteroids, there’s no shortage of places for us to explore. Slowly but very surely, we’re finding all sorts of incredible ” and sometimes unexplainable ” phenomena.