41–60 of 282 results
Leo constellation with star names

Night Sky Sights

May Podcast: What to Call a Star?

This month we’ll look for tiny bits of Halley’s Comet; track down four planets; take stock of bright stars in the late-spring sky; and use the constellation Leo to learn what astronomers call all the stars that don’t have names. So grab your curiosity, and come along on this month’s Sky Tour episode.

K2-18 system

Night Sky Sights

See the Host Sun of Exoplanet K2-18b

While you won't see a trace of this exoplanet or alien life, it's easy to spot the red dwarf star that warms its surface.

Vesta by Dawn

Night Sky Sights

Asteroid Vesta Now an Easy Catch in Binoculars

Vesta, both protoplanet and asteroid, reaches opposition on May 2nd. From a dark sky it's even visible with the naked eye.

Comet C/2025 F2 (SWAN)

Night Sky Sights

New Comet SWAN Now Visible in Small Scopes

A new comet discovered in spacecraft images is bright enough to make you get out of bed before dawn.

Leo-Cancer-Gemini-Hydra

Night Sky Sights

April Podcast: Celestial Carnivores

This month we’ll watch bright planets come and go, track down some celestial carnivores, and enjoy a splash of mid-spring meteors. So grab your curiosity, and come along on this month’s Sky Tour episode.

Dwarf nova ilustration

Night Sky Sights

T Coronae Borealis Isn't the Only Star Ready to Blow — Meet U Gem

As we wait on recurrent nova T CrB, dwarf nova U Geminorum is teeing up for its next 8-magnitude outburst.

How to spot Mercury in early March 2025

Night Sky Sights

March Podcast: Planets, Stars, and Eclipses!

This month we’ll mark two seasonal transitions, watch eclipses of the Moon and Sun, track down the elusive planet Mercury, and trace out the Winter Hexagon. So grab your curiosity, and come along on this month’s Sky Tour.

Aurora swirls

Night Sky Sights

North to the Aurora!

If the aurora won't come to you, go to it. The story of my quest to see the polar lights.

Artist's impression of Epsilon Aurigae

Night Sky Sights

Meet Almaaz, the Billy Goat Star

Almaaz, also called Epsilon Aurigae, is among the weirder stars of the night sky — a supergiant with a dust-enshrouded companion.

Pleiades with nebula

Night Sky Sights

Best Double Stars in the Pleiades Cluster

Like a gift that keeps on giving, the Pleiades is also home to several fine double and triple stars for small telescopes. Plus, details of a rare comet occultation on Feb. 5.

Star chart for Monoceros

Night Sky Sights

February Podcast: Planets Amid Winter’s Stars

This month we’ll look for five planets in the evening sky, explore the Moon’s phases, take stock of winter’s brightest stars, and track down two lesser-known constellations. Give Sky Tour a Try!

Ring galaxy

Night Sky Sights

Drift Along in Eridanus, the River Constellation

This meandering watercourse is the sixth largest constellation in the sky and holds galaxies aplenty.

R Leo with Leo's Sickle

Night Sky Sights

Take a Look at R Leonis, Leo's Giant Ticker

Big, bright and red, the Mira variable R Leonis portends the Sun's fate. A pair of binoculars is all you need to get acquainted.

Night Sky Sights

Celebrate Hubble’s 35th Year with This Observing Challenge

Join NASA and the Astronomical League in a fun new observing challenge that celebrates Hubble's 35th anniversary.

Comet ATLAS (C/2024 G3) over Mexico

Night Sky Sights

Comet ATLAS (C/2024 G3) — Catch it if You Can

Grab your binoculars for a chance to see Comet ATLAS as it plunges toward perihelion.

Mars and Olympus Mons

Night Sky Sights

Mars Extravaganza — Occultation and Opposition Rolled into One!

Mars is big and bright again! In a spectacular preview to its upcoming opposition, the full Moon occults the Red Planet on January 13th.

Moon occults Mars 13Jan2025

Night Sky Sights

January Podcast: Mars Meets the Moon

Every January millions of us resolve to do something different or better in the coming year. So make a resolution to do more stargazing this coming year! And there’s no better way to get a good start than by heading outside with our 12-minute monthly romp across the stars and planets that can be seen overhead. Give Sky Tour a try!

The Moon nearly at first quarter

Night Sky Sights

How To Get Started with that New Telescope

How to start successfully with your new telescope — a guide to what you need to know, how to set it up, and things you can start finding with it in tonight’s sky.

Taurus constellation figure

Night Sky Sights

Meet the Taurus Constellation: The Ancient Bull

Taurus, the Bull, is a constellation that has been around for centuries, possibly even millennia.

Comet C/2024 G3

Night Sky Sights

Comet ATLAS (C/2024 G3) Kicks off the New Year — What to Expect

The Southern Hemisphere should get a good show of Comet ATLAS (C/2024 G3). Mid-northern latitude observers not so much.