The spacecraft will map the boundaries of the heliosphere, study how Earth’s outer atmosphere reacts to solar activity and ...

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

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.

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

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 ...

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

You’re learning important personal news once Mercury moves into Scorpio on October 6. Maybe you hear from a loved one or ...

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

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.