A remarkable series of experiments shows that migratory birds navigate by the stars. In a planetarium their flight direction is controlled by the position of the stars in the artificial sky ...

Before sunrise on April 25, a slender waning crescent moon will appear left of Venus and Saturn to create the tilted happy face.

During the 2024 total solar eclipse that captured the attention of space lovers across North America, something was going on with the birds.

Early birds on Earth will have the chance to witness the moon teaming up with two planets to form a celestial smiley face this week. Between 30 to 40 minutes before sunrise on Friday, April 25 ...