Science ❯ Astronomy

Observation Techniques

Stargazing Viewing Conditions Telescopes Telescope Use Skywatching Astrophotography Photography Binoculars Viewing Tips Sky Watching

Comet Lemmon Shines at Closest Approach as Twin Comet SWAN Offers a Dimmer Companion

The once‑in‑centuries visitor is brightest now for Northern Hemisphere observers using binoculars after sunset.

Orionid Meteor Shower Peaks Under New Moon Tonight

Orionids Peak Under New-Moon Skies Tonight

Two Long-Period Comets Enter Peak Viewing: SWAN Closest Now, Lemmon Tuesday

Comet Lemmon Makes Closest Approach Oct. 20–21 With Prime Viewing Under New Moon

Interstellar Comet 3I/ATLAS Surprises Researchers With CO2-Rich Coma and Nickel Vapor

Orionid Meteor Shower Peaks Oct. 21–23 Under New-Moon Skies

Twin Green Comets Brighten For Best Views Under Next Week’s New Moon

Orionid Meteor Shower Set to Peak Under Moonless Skies Next Week

Last Quarter Moon Draws Close to Jupiter Overnight in Easy Sky Show

Twin Green Comets Enter Prime Viewing Week Before Closest Approaches

Comets Lemmon and SWAN Poised for Best Viewing Oct. 20–21

Draconids Peak Today With NASA Modeling a Brief Burst Up to 400 Meteors an Hour

Draconid Meteor Shower Peaks Wednesday With Best Views After Dusk in Northern Skies

October 'Harvest/Hunter' Supermoon Rises Monday Night, Kicking Off a Three-Month Run

Partial Solar Eclipse Today Over New Zealand and Antarctica Is Streaming Live

Saturn Reaches Opposition, Brightest and Closest of 2025

Rare Dawn Conjunction of the Moon, Venus and Regulus Thrills Early Risers on Sept. 19

Swan25B and Lemmon to Grace the Evening Sky in October

Asteroid 2025 FA22 Safely Speeds Past Earth at More Than Twice the Moon’s Distance