21–40 of 603 results
Geminid fireball and aurora

Meteors

Geminid Meteor Shower Peaks December 13-14

Great news! We'll have dark skies for the year's richest meteor shower.

Deep Sky

Lure of the Obscure — Andromeda's Parachute and Dracula's Chivito

Observers can't resist the challenge of seeking faint objects with curious names. We go deep and visit two — Andromeda's Parachute and Dracula's Chivito.

Comet K1 ATLAS on Nov. 18, 2025

Comets

Comet K1/ATLAS Crumbles, Interstellar Comet 3I/ATLAS Delights

Watch an Oort Cloud comet disintegrate before your eyes. Meanwhile, interstellar intruder 3I/ATLAS is brighter than expected.

Corona aurora

Auroras

Double Solar Eruptions Spark Widespread Aurora

Last night's aurora painted the sky in reds, greens and even oranges. It's expected to return tonight!

Saturn's rings Nov. 7, 2025

Planets

See Saturn's Rings at Their Thinnest

Saturn's as edgy as it'll get for the next 13 years. With special visual treats in store, here's what to keep eyes on the planet this month.

Comet 3I/ATLAS closeup

Comets

All Eyes on Interstellar Comet 3I/ATLAS

An alien comet will soon depart from the Sun's glare and enter the morning sky. It may be even brighter than expected, so get ready for the observing opportunity of a lifetime.

Orionid composite 2015-2022

Meteors

Dip a Toe in the Orionid Meteor Stream on Oct. 20-21

Circumstances are ideal for watching debris from Halley's Comet set the morning sky ablaze.

Comet Lemmon on September 26th

Comets

Two Bright Comets Converge on Northern Hemisphere Skies

After a dearth of bright comets earlier this year, we look forward to an exciting month ahead.

Nova Cen early image

Variable Stars

Australian Astronomer Discovers Back-to-back Novae!

John Seach hit the jackpot, discovering novae in both Centaurus and Sagittarius within a day of each other.

Titan shadow transit September 4, 2025

Planets

Last Call for a Remarkable Titan Shadow Transit

Titan joins its shadow for a "grand finale" this October.

Comet SWAN25B

Comets

New Comet SWAN (C/2025 R2) Pops Out from Behind the Sun

Ukrainian amateur discovers a bright, new comet now in the evening sky.

Comet Lemmon Aug. 25, 2025

Comets

Sweet Prospects for Comet Lemmon (C/2025 A6)

A promising comet could reach naked-eye brightness next month. Here's how to track it.

Variable Stars

The Mystery of Leslie Peltier's "Two Tiny Diamonds"

How a determined amateur astronomer may have hit on the identity of a Cepheid variable double star described by a beloved author.

Perseid in bright moonlight

Meteors

Moon or Not, the Perseid Meteor Shower Is On!

Sure, the Moon will be a problem. But clouds are worse. Don't miss one of the best meteor showers of the year.

Watching the Southern Delta Aquariids

Meteors

Thumbs Up for the Delta Aquariid Meteor Shower

Meteor-watchers will be busy this month and next. Not only are the Southern Delta Aquariids peaking soon, but they get a boost from additional minor showers.

Comet 3I/ATLAS amateur view

Comets

Rare Interstellar Comet Buzzes Solar System

A newfound comet from a remote star system may become bright enough to see in amateur telescopes this November.

Double Novae image V632 Lupi and V572 Velorum

Variable Stars

See Dual Naked-Eye Novae, a Rare Cosmic Coincidence

What's rarer than a naked-eye nova? Having two of them at the same time!

2-day-old crescent

Moon

Explore June's Dusky Crescent Moon

The Moon returns to the evening sky this week to show off its elegant crescent and invite us to tour its nightside.

Nova Lupi (V462 Lupi) June15

Variable Stars

Bright Nova Lights Up Lupus Constellation

A newly-discovered nova in Lupus is on the rise and approaching naked-eye visibility. Here's how to see it.

Smoky Strawberry Moon

Double Stars

When Wildfires Imperil Our Night Skies, See Double and Variable Stars

As wildfire season expands, observers across much of the country try to make do.