Daytime moon is up after sunrise now
Watch for the moon in the morning sky - after sunrise - for a few days after full moon. Look west after the sun comes up!
Astronomy Essentials
Visible planets and night sky guide for April
Visible planets and night sky guide for April 2024. The moon is rising and setting later each night. See a daytime moon over your western horizon after sunrise.
Brightest Stars

Sun news April 24: Sun activity high, with sun-stuff coming

April 24, 2024, sun news. Sun activity continues at a high level. We await the arrival of several CMEs. Could auroras be on their way? Good luck, aurora fans!
Brightest Stars

Cor Caroli, named for the heart of a king

Cor Caroli is a binary star and the brightest star in the northern constellation Canes Venatici, the Hunting Dogs. Its name means Heart of Charles.

Hurray! Voyager 1 has phoned home with engineering updates

Voyager 1 has again begun sending an intelligible signal back to Earth. Scientists hope they can prompt the craft to resume sending science data.
Moon Phases

April full moon – the Pink Moon – falls on April 23

The April 2024 full moon – on April 23 – is the Pink Moon and lies near the star Spica in the constellation Virgo. Find star charts here.
Favorite Star Patterns

Spring Triangle in the east at night, heralding the season

As the Northern Hemisphere enters spring, look for the Spring Triangle rising in the east, made up of bright beacons from three prominent constellations.

Antarctic meteorites are sinking in melting ice

Warming temperatures are causing Antarctic meteorites to sink through melting ice. These samples of our solar system are keys to understanding earthly life.
Astronomy Essentials

2024 Lyrid meteor shower: All you need to know

Best time to watch the Lyrid meteor shower: before dawn on the morning of April 22. Sure, there's a bright moon out there. But you might see some!
Astronomy Essentials

Meteors in moonlight: 6 tips for 2024’s Lyrids

Meteors in moonlight. It's not optimal, but it happens! Here's how to minimize the moon and optimize the Lyrid meteor shower in 2024.

2024 EarthSky Fundraiser

Any amount will help us reach our goal.

Would you consider


If you've already donated, we apologize for the popup and greatly appreciate your support.