An exoplanet completely or densely covered by clouds could aid astronomers in their search for signs of life beyond Earth. Cloudy skies may spoil a picnic or block a view of the stars through a ...

Timelapse footage captured by a passenger on a flight across the eastern United States shows a breathtaking view of the northern lights as a powerful geomagnetic storm made the aurora borealis visible ...

Is it a UFO? Is it a hole in the sky? It’s neither — the clouds spotted in the Colorado sky on Wednesday morning are actually ...

Looking up at the Saturday afternoon sky, many residents saw what appeared to be a massive tear in the clouds above ...