In this episode, Dave Eicher describes the upcoming conjunction of two bright objects in the evening sky. On October 5th, you ...

In this episode, Dave Eicher invites you to observe the annular eclipse that will occur October 2. Annular eclipses occur when the Sun, the Moon, and Earth line up, in that order. But in this case, ...

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The plumes stretch farther than any yet seen, reaching millions of light-years long and potentially influencing the cosmos ...

A famous radio signal from space long considered as a possible sign of another civilization, in the end, falls flat.

On September 22, our satellite passes in front of the famous star cluster M45 in a rare, breathtaking event, producing ...

The phenomenon of a Full Moon arises when our planet, Earth, is precisely sandwiched between the Sun and the Moon. This alignment ensures the entire side of the Moon that faces us gleams under ...

Neptune reaches opposition today at 8 P.M. EDT in the constellation Pisces. Opposition is generally the best time to view ...

Royal Observatory Greenwich’s Astronomy Photographer of the Year winners announced including nebulae, skyscapes, and more.

Our Earth is about 4.5 billion years old and, through careful work, scientists have pieced together a timeline of its past.

Celebrate a Harvest Moon lunar eclipse and an occultation of the planet Saturn, just days before Neptune reaches opposition.