Very thin crescent against lavender sky.

Will you see the young moon on June 21?

It’s rare to catch a moon within 24 hours of new. This month’s new moon comes on June 21 at 06:41 UTC. At sunset on June 21, some in the Americas or on Pacific islands might catch an exceedingly fragile young moon – fresh from an eclipse – low in the west after sunset.

Annular solar eclipse

Annular solar eclipse on June 21, 2020

On the heels of the June solstice, the new moon will sweep directly in front of the sun on Sunday, June 21, 2020, to stage an annular – ring of fire – solar eclipse for the world’s Eastern Hemisphere.

Summer solstice tale of 2 cities

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

Libra? Here’s your constellation

The zodiacal constellation Libra the Scales is a fixture of the evening sky during a Northern Hemisphere summer (Southern Hemisphere winter).

All you need to know: June solstice 2020

The June solstice is June 20. Longest day for the Northern Hemisphere. Shortest day for the Southern Hemisphere. Details here.

A Dragon and a former pole star

Let your eyes and imagination drift to see the entire winding shape of Draco the Dragon. Also, meet Thuban, a pole star when the Egyptians were building the pyramids. 

Now is the time to start watching Mars

Mars has been inconspicuous in our predawn sky for some months. It’s slowly gotten brighter and redder. Now the drama is about to begin! By October, Mars will outshine Jupiter! Start watching it now, and enjoy the fun.

A horn-shaped graphic depicting the various epochs of the universe.

What is the Big Bang?

In the view of modern cosmologists, the Big Bang is the event that marked the birth of our universe.

The illustration shows the sun in the center, and Earth passing between Saturn and the sun.

What is an opposition?

Opposition marks the middle of the best time of year to see a planet … but why?

June 20 marks the middle of an eclipse season

When the lunar nodes pointed directly at the sun on June 20, 2020, the event marked the middle of the eclipse season. Shortly thereafter, an annular eclipse of the sun took place on June 21, 2020.