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Chile-Argentina eclipse path in 2020

Eclipses

2020 Total Solar Eclipse: Update from Patagonia

Check out the viewing site and accommodations in Argentina's lush Lake District for Sky & Telescope's expedition to witness the 2020 total solar eclipse on December 14, 2020.

Geminids Dec 13_2018 Bob King 480x274

Explore the Night with Bob King

Geminids and the Moon Duke it Out

Don't let light from the gibbous Moon discourage you from enjoying the annual Geminid meteor show on the peak night, December 13-14.

Celestial News & Events

Meteor Shower Was a Dud, But Showing Up Was Half the Fun

The Alpha Monocerotids happened as predicted, even if not quite as we expected.

Alpha Monocerotid Radiants

Explore the Night with Bob King

Intense Meteor Storm Expected from the Alpha Monocerotids

Circle the date November 21st on your calendar, when a brief but potentially spectacular meteor storm might light up the night.

Transit of Mercury 2019 (composite)

Celestial News & Events

Capturing the Transit of Mercury

Though clouds blocked the sky for many yesterday, those with a clear view had the chance to see tiny Mercury cross the face of the Sun.

Explore the Night with Bob King

Don't Miss Monday's Rare Transit of Mercury

On Monday, November 11th, Mercury will pass directly in front of the Sun and look a tiny black dot silhouetted against the brilliant solar disk. The event, called a transit, occurs approximately 13 times a century.

Transit comparison

Celestial News & Events

Citizen Science with the Transit of Mercury

If you're planning on watching the November 11th transit of Mercury, try kicking it up a notch — watch with a friend and calculate the distance between Earth and the Sun!

Incoming point

Asteroids

"Potentially Hazardous" Asteroid Is Headed For Your Telescope

A potentially hazardous asteroid makes a flyby of Earth this Friday, offering amateurs with modest telescopes a chance to ride along.

Moon

Crack Your Crescent Moon Record

Calling all crescent lovers! Here's a chance to set a new personal record by seeing one of the oldest moons ever.

Comet Africano in full glory

Explore the Night with Bob King

Autumn Comets, Mira's Eye & The Orionid Meteor Shower

Four comets, a famous variable star, and sprinkles of dust from Halley's Comet are highlights of the October sky.

Celestial News & Events

International Observe the Moon Night 2019

Observe the first-quarter Moon on October 5 for International Observe the Moon Night. Here's a guide to tell you what to look for.

Moon-Jupiter-Saturn Oct 2-5 300px

Celestial News & Events

October 2019: Giant Planets & Bits of Comet

This month's Sky Tour let's you enjoy close pairings of the Moon with Jupiter and Saturn; explore interesting stars and constellations, and keep watch for blazing bits of Halley's Comet.

Interstellar Comet Borisov

Comets

Will Amateurs Be Able to See the New Interstellar Comet?

Only the second object thus far to visit the solar system from interstellar space, Comet Borisov is expected to reach perihelion in December. What can we see now?

Annular eclipse path December 26, 2019

Celestial News & Events

100 Days Until Christmas “Ring of Fire” Eclipse

Here’s everything you need to know about the annular solar eclipse that will cross over much of Asia on December 26, 2019.

Explore the Night with Bob King

Another Interstellar Visitor Is Headed Our Way

An amateur astronomer has discovered a comet that might be the second interstellar visitor after 'Oumuamua — and it's heading for its closest approach to the Sun late this year.

Crowning glory

Explore the Night with Bob King

Volcanoes Turn Twilights Purple

A rash of unusually colorful sunsets follows in the wake of two major volcanic eruptions. 

Harvest Moon Sept 2019

Sky Tour Astronomy Podcast

September 2019: Triangle Time

Download September's Sky Tour astronomy podcast for tips on observing Jupiter, Saturn, and the easy-to-spot Summer Triangle.

Trojan asteroids

Celestial Objects to Observe

Be a Warrior — Tackle a Trojan Asteroid

You've seen Jupiter and its four brightest moons. Now meet the rest of the family — the Trojan asteroids.

Moment of impact

Celestial News & Events

Texas Amateur Detects Possible Impact on Jupiter

It looks like Jupiter got slammed again! A bright flash from a possible impact lit up the planet's South Equatorial Belt Tuesday night. 

Moon-Jupiter-Saturn on Aug 9

Sky Tour Astronomy Podcast

August 2019: Stars of Summer

Download August's Sky Tour astronomy podcast for tips on observing the Perseid meteor shower and the key planets, stars, and constellations in the evening skies of summer.

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