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Find the Lyrid meteor’s radiant point

The radiant point for the Lyrid meteor shower is easy to spot, near the bright star Vega.

April 21 is Astronomy Day

A beautiful chart from astronomer Guy Ottewell, showing the evening sky on Astronomy Day 2018. Plus links to Astronomy Day events and other info.

Lyrid meteor shower: All you need to know

In 2018, April 22 is the peak morning. Try April 21 and 23 as well. The moon, near the 1st quarter phase, is out of the way.

How the moon reveals the sun’s mass

How do astronomers determine masses for distant space objects? Here’s one example – using the moon’s orbit as a baseline to find the mass of our sun – from EarthSky’s Bruce McClure.

Come to know the Big and Little Dippers

The Big Dipper is easy. And, once you find it, you can find the Little Dipper, too.

April guide to the bright planets

April finds Venus blazing away in the west at evening twilight, and Jupiter rising at mid-to-late evening. After the Mars and Saturn conjunction on April 2, the pair remain in the same binocular field for about a week.

2018’s 2nd Blue Moon on March 31

The March 31 Blue Moon is the 2nd Blue Moon of 2018. We haven’t had 2 Blue Moons in a year since 1999 and won’t again until 2037.

Why is Easter so early this year?

Yes, April 1 is an early Easter, but 2018 doesn’t hold a record for the earliest possible Easter. How the date of Easter is determined, here.

Mizar and Alcor, famous double star

Mizar and its fainter companion star Alcor are easy to spot in the Big Dipper’s handle.

Mars brighter in 2018 than since 2003

Mars is getting brighter. By mid-2018, Mars will be at its brightest since 2003, when it was closer and brighter in our sky than in some 60,000 years.

March equinox: All you need to know

Happy equinox! The March 20, 2018, equinox is an event that happens on our sky’s dome and a seasonal marker in Earth’s orbit around the sun.

Are day and night equal at the equinox?

Equinox means “equal night.” And you might hear day and night are equal at the equinoxes. Yet Earth’s air and our sun conspire to give us more daylight at an equinox.

See it! Young moon, Venus, Mercury

Wow! So many of you are catching the moon, Venus and Mercury after sunset. Thank you for all your photos. We wish we could post them all!

The Beehive: 1,000 stars in Cancer

On a dark night, look for it as a smudge of light, with 3 times the moon’s diameter. It’s really a wondrous cluster of stars called the Beehive, or M44.

See the early morning Milky Way

The edgewise view into our own galaxy, looking toward the galaxy’s heart, from EarthSky community members who ventured into the cold and darkness before dawn in February 2018.

See it! 1st March full moon

Photos from the EarthSky community of the March 1-2, 2018, full moon, the 1st of 2 full moons for this month!

What are star trails, and how can I capture them?

When a camera captures a star’s movement across the sky, it’s called a star trail. An astrophotographer explains how he does it.

How many stars can you see?

It takes up to 30 minutes for your eyes to adapt to the dark. And a country location is best. Then, on a clear night with no moon … how many stars?

Taurus? Here’s your constellation

How to find to find the constellation Taurus in your night sky. Plus the names of some of its bright stars and star clusters and its mythology.

Will you see the Humanity Star?

The debate surrounding the Humanity Star. Is it possible to see? Can you see it from your location? How to try to see it, if it’s visible, here.