Martian clouds are almost always made of dry ice, or frozen carbon dioxide. 95% of the planet's atmosphere is CO2.

“New Horizons shattered a major paradigm of planetary science,” says Alan Stern, the mission’s principal investigator. “Pluto ...

On the 95th anniversary of its discovery, Pluto remains one of the most beloved and enigmatic worlds in our solar system, ...

The Philippine Mars' final flight ended in Lake Pleasant, Arizona, where the aircraft will be displayed. See photos of the ...

Their discovery showed that even tucked away in our innards – in the walls of our stomachs, subjected to vinegar-like pH ...

Perseverance's drives over the last few weeks have doubled back several times. Why such an unconventional route? Team ...