Finally, the Earth moves a little bit beyond one complete revolution, so the stick again points towards the sun for a second local noon. The sidereal day is just a little bit shorter—approximately 23 ...

Lightning happens all the time, but certain parts of the world get far less of it than others, including near the North Pole. Lightning requires atmospheric instability, something that’s set up ...

I was looking forward to writing a tribute to clear summer skies and great summer stargazing in the Pacific Northwest.

Reinsurance — a risk management tool used by insurance companies — is one of those private markets. “ It is high-risk,” Gilley cautions. “But one of the things that’s most attractive about that type ...

Have you ever stood under a vast, dark sky and wondered if magic was possible? Witnessing the northern lights feels exactly ...

Airliners go just about everywhere in the world, but despite advances in air travel, there's still one place that a commercial jet won't take you.

The south pole of the Sun, photographed by the Extreme Ultraviolet Imager instrument aboard Solar Orbiter on 30 March 2022. © ESA & NASA/Solar Orbiter/EUI Team The Sun’s poles are of particular ...

The star Polaris marks the North Celestial Pole in our sky, around which all other objects in the heavens appear to rotate.

The earliest light in the universe has been traveling across space since just after the Big Bang. Known as the cosmic ...

The new moon occurs on June 25. A day later, Mercury reaches its highest point in the evening sky, and on June 27, the young ...

SpaceX rocket is set to blast off from Vandenberg, sending Starlink satellites into space. Depending on weather, people in ...