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What’s the youngest moon you can see?

In 2013, an astrophotographer in France captured an amazing photo of the moon at the precise instant of new moon.

The eclipse is just 2 lunations away

As we approach another new moon, astronomer Guy Ottewell shares his profound understanding of lunar cycles and the coming total solar eclipse.

What’s a conjunction?

EarthSky community member Tom Wildoner explains the term “conjunction” in astronomy and provides an illustration.

Alphecca, the jewel in the Northern Crown

Alphecca. Gemma. Alpha Coronae Borealis or simply Alpha Cor Bor. They’re all names for one star – the brightest star in the constellation Northern Crown.

Sun moves in front of Gemini on June 21

On June 21, 2017, at around 15:00 UTC, the sun moves out of the constellation Taurus and into the constellation Gemini the Twins.

All you need to know: June solstice 2017

It’s that beautiful time of year again in the Northern Hemisphere, when the June solstice – your signal to celebrate summer – is nearly upon us.

Summer solstice tale of 2 cities

On the June solstice, the sun sets at the same time in New York City and St. Augustine, Florida. But New York has an hour more of daylight. How’s that happen?

Slowest sunsets around solstices

Here’s a natural phenomenon you might never have imagined. That is, the sun actually sets more slowly around the time of a solstice.

Does the North Star ever move?

It’s a symbol for constancy, but, if you took its picture, you’d find that the North Star makes its own little circle around the sky’s north pole every day.

Are asteroids hiding among the Taurids?

And, more to the point, are any asteroids that might be hidden in the Taurid meteor stream potentially hazardous to Earth?