2027 Quadrantid meteor shower has narrow peak on January 3-4

The Quadrantid meteor shower in 2027 will peak in the hours before dawn on January 4, in a dark sky.

Which Milky Way spiral arm contains our sun?

Where do we live in the Milky Way galaxy? We lie between the major arms in a smaller spiral arm known as the Orion Arm. See diagrams here.

Here’s what ‘habitable’ means to astronomers

When astronomers say a distant world is 'habitable,' what do they mean? Do they mean humans could live there? Do they mean we've discovered alien life?

Top 10 brightest objects in our solar system

Ready for some easy astronomy? How about the top 10 brightest objects in our solar system? If you've seen every one of these objects, congrats!

Leonid meteor shower: All you need to know in 2026

2026's Leonid meteor shower will peak on the morning of November 18, 2026. Watch for meteors after midnight until dawn. A 1st quarter moon will be present.

What does opposition mean for an outer planet?

Opposition is when Earth passes directly between the sun and an outer planet, placing the outer planet on the opposite side of the sky from the sun.

Venus superior conjunction (beyond sun) on January 6

The moment of the Venus superior conjunction - when it passes most nearly behind the sun as viewed from Earth - occurs today, January 6, 2026.

Geminid meteor shower peaks December 13-14

The Geminids are here! The 2026 shower peaks December 13-14. Watch in a dark sky. The peak time of night is probably around 2 a.m.

Are the December solstice and January perihelion related?

December solstice 2025 occurred on December 21. Earth will be closest to the sun about 2 weeks later, on January 3. Coincidence?

How to translate UTC to your local time zone

The Earth has about 24 time zones. Because these differ widely, science uses Universal Time, or UTC. Learn how to translate UTC to your local time zone.