Normally when a medium-size star dies, it blasts away the bulk of material in its system. The Hubble discovery was surprising ...

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

Anyone hungry for the icy crunch of a Pluto -like body? No? Well, one nearby white dwarf is going all in on a Pluto-esque ...

The methane gas may constitute a rarefied atmosphere, or it may come from erupting plumes on Makemake’s surface.

Using Pluto as an example, this celestial body, once considered the ninth planet, was redefined as a dwarf planet in 2006.

Pluto's unusual eccentricity and tilt is likely due to its interactions with neighboring Neptune and other giant planets, ...

In 2015, after flying for 9 years and covering nearly 5 billion kilometers, the New Horizons spacecraft successfully flew ...

Earth is the only planet in our solar system with a single moon, making it a rare phenomenon for a planet of its kind.

The findings suggest Earth’s geological story was partly written in the stars – specifically, in the spiral arms of our home ...

In what we can only interpret as a show of solidarity for the Solar System's beleaguered dwarf planet Pluto, the Sun put its heart prominently on its sleeve atmosphere.

Unlike typical comets, ‘Oumuamua lacks rock or carbon-rich material. It is also much more elongated than other comets. It looks pancake-shaped, not spherical like regular comets.