Ten thousand stars bedazzle the eye on a dark night. Wait, how many?
With a subtle beauty all its own, the earthshine we see glowing in the lunar night invites us to consider Earth's many connections to the Moon This week's crescent Moon offers more than two horns to hang your hat on. Take a close look, and you'll see an entire circle of moonlight. Sunlight illuminates...
Channel your inner superpower by looking up at the night sky precisely when a dazzling blaze of light is beamed to Earth from outer space.
On July 5th, the Moon has a remarkably close brush with Mars, followed two nights later by a similar rendezvous with Saturn.
Watch S&T senior editor Alan MacRobert show and explain how to use star charts and planispheres (star wheels).
Here are hyperlinks to many websites that can help you forecast the astronomical observing conditions for next few nights — or longer.
Have you ever felt that you ought to be able to see more in the night sky using just your unaided eyes? You may need nothing more than a new pair of eyeglasses.
Light pollution is most amateur astronomers' worst enemy. Learn here how to measure and describe how brightly your sky glows.
S&T contributing editor Fred Schaaf takes a new approach to an old subjecty by describing the 50 best astronomical sights of any kind, from naked-eye spectacles to objects that can only be seen through telescopes at high magnification.
Telescope tinkering can be fun and rewarding.
When Galileo Galilei first turned a telescope to the heavens four centuries ago, he discovered amazing things and you can follow in his footsteps.
Como sacar fotos increíbles de constelaciones, nebulosas, grupos de estrellas, y nuestra galaxia.
Todo lo que necesita para disfrutar de las maravillas del cielo nocturno es un par de binoculares.
Pasar una o dos horas aprendiendo a leer un mapa estelar le abrirá el Cosmos para una vida de exploración.
La Astronomía no merece su reputación como un pasatiempo difícil y caro. Sólo necesita empezar con los consejos correctos.
Lo esencial de la navegación por el cielo con un telescopio y atlas de estrellas.
Cada año millones de personas compran telescopios, pero pocas tienen una buena idea de qué deben buscar (o evitar) cuando vayan en busca de su instrumento nuevo.
Even when the air is perfectly clear, a significant fraction of starlight is lost in the atmosphere. And when there's a lot of haze or your target is close to the horizon, atmospheric extinction is a major problem.
Here are links to some websites that can help you predict where and when you'll get good transparency for deep-sky observing.
Would you like to be able to navigate your way around the night sky with confidence? Using this simple, easy-to-make Star Wheel, you can "dial the sky" for any time or date.
A quick download, some scissors, and a paper fastener are all it takes to use the stars to tell time.
Exploring the night sky is a fun activity for kids of all ages and it doesn’t require a lot of planning or equipment.
Sundials are amazingly simple yet effective devices. They range from sticks planted in the ground to precision-machined marvels costing thousands of dollars. The design shown here can be constructed in minutes from materials lying around your house, but it's surprisingly accurate.
It’s a game, it’s a sky-learning aid, and it’s pure fun!
Want to gaze at the Milky Way all night or peer into the eyepiece of a 12-foot-tall telescope? Then escape the city lights and head for the nearest “star party.”