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Mercury will cross the face of the sun in a rare transit of Mercury on Nov. 11, 2019. The next time this will happen will be 2032.

Rare Transit of Mercury, the Last Until 2032, Occurs Today! Here's What to Expect

By Elizabeth Howell

The planet Mercury is going to cross across the sun today (from Earth's perspective) starting at 7:34 a.m. EST (12:34 p.m. GMT).

This weather map shows the national forecast for Nov. 11, 2019, the day of the Transit of Mercury.

Here's the US Weather Forecast for the Monday's Rare Mercury Transit of 2019

By Joe Rao

For those hoping to get a glimpse of Nov. 11's rare transit of the planet Mercury across the face of the sun, the weather across the United States will either be very good.

The planet Mercury transiting in front of the sun in 2003, as captured by a NASA satellite.

Mercury Transit 2019: The Astronomical History of This Rare Celestial Event

By Joe Rao

Mercury will transit the sun on Nov. 11, 2019. Here is a timeline in UTC/GMT of the rare celestial event and Mercury's path across the sun.

Mercury Transit 2019: Here Are the Stages to Watch

By Doris Elin Urrutia

Skywatchers must use special sun-viewing lenses to safely observe Mercury's transit.

Mobile astronomy apps such as SkySafari 6 are an ideal tool to preview celestial events. The transit of Mercury on the morning of Nov. 11, 2019 is the last such event until 20??. In the Eastern USA and Canada, the moon will set mid-eclipse. But skywatchers in the west will be able to watch the entire eclipse, as shown here near the end of the eclipse at 6:15 a.m. PST in San Francisco, CA. By telling you where in the sky it will occur, your astronomy app can help you plan to observe or photograph any eclipse.

How to Use Mobile Astronomy Apps to View the Mercury Transit of 2019

By Chris Vaughan

How to use a mobile astronomy app to preview and track the Mercury transit on Nov. 11.

The May 9, 2016, transit of Mercury.

Teach Your Kids About the Mercury Transit of 2019 with This NASA Guide

By Elizabeth Howell

Mercury will fly across the sun (from Earth's perspective) on Monday, and NASA has a whole lot of kids' materials ready for the occasion.

The transit of Mercury on May 9, 2016, as seen by NASA's Solar Dynamics Observatory. The planet is a small black circle on the left side of the sun.

Mercury Transit 2019: How a Spacecraft Fleet Will Watch the Rare Event from Space

By Doris Elin Urrutia

On Monday (Nov. 11), Mercury will move across the sun's face, and several missions will have their sights set on the rare event.

Mercury as seen passing between Earth and the sun during a transit.

The Science of the 2019 Mercury Transit: How Astronomers Will Study the Rare Celestial Event

By Nola Taylor Redd

On Monday, students across the U.S. will use Mercury's transit to measure the distance between Earth and the sun.

The sun rises behind midtown Manhattan and the Empire State Building in New York City. On the morning of Nov. 11, 2019, Mercury will transit the rising sun.

A Mercury Transit for the Ages: November 1973

By Joe Rao

In my long career as an assiduous amateur astronomer, I've seen other transits of Mercury, but one from November 1973 stands out.

A close-up view of Mercury (the small, black circle) crossing in front of the disk of the sun on May 9, 2016.

Mercury Transit 2019: How to Watch the Rare Event Live Online

By Hanneke Weitering

When Mercury passes in front of the sun on Monday, you'll need the right equipment to see it safely. But if you don't have that kind of astronomy gear handy, you can also watch it live online.

Boyertown Area High School astronomy teacher Peter Detterline prepares high powered binoculars with a solar filter so that his students may view the planet Mercury as it transits across the face of the sun, on May 9, 2016.

Mercury Transit 2019: How to Find an Event Near You

By Elizabeth Howell

If you want to watch the Mercury transit on Monday (Nov. 11) but don't have the proper equipment, you can still find a viewing event near you. Here's how.

Saturn, Venus and Jupiter align above the skyline of Tel Aviv, Israel, as seen during the morning twilight.

Planets Align Over the 'White City' in Twilight Photo of Tel Aviv

By Miguel Claro

Planets align over the skyline of Tel Aviv in this panoramic view of the city by twilight.

The tiny spot of Mercury can be seen crossing the face of the sun in this observation of the transit on May 9 from Boyertown, Pennsylvania.

Watch Live Today! Slooh Webcast of the Mercury Transit

By Space.com Staff

Mercury will transit the sun on Monday (Nov. 11), and you can see spectacular views in a free webcast from the online astronomy telescope site Slooh.com. The show begins at 7:30 a.m. EDT (1230 GMT).

A student uses his smartphone and a photographers lens with a solar filter to capture a photo of the planet Mercury transiting the sun on May 9, 2016.

Mercury Transit on Monday: The Gear You Need to Watch It Safely

By Elizabeth Howell, Hanneke Weitering

The Mercury transit on Nov. 11 will be accessible to amateur astronomers, as long as they have the right equipment to view it safely.

Mercury crossed the face of the sun on May 9, 2016 during a rare transit that delighted skywatchers around the world. This image is a composite view of Mercury during the 7.5 hour event as seen by NASA's Solar Dynamics Observatory during the event.

Mercury Transit 2019: Here's Why This Celestial Event Is So Rare

By Joe Rao

On Monday, Nov. 11, a most unusual event will take place: the transit (passage) of the planet Mercury across the sun's disk.

As November begins, Mercury will be in the western evening sky and swinging sunward towards inferior conjunction on November 11, when the speedy planet will transit the sun. The transit will be visible in whole or in part from westernmost Russia, the Middle East, Europe, Africa, South America, North America (except for the extreme north), most of the Pacific Ocean, and New Zealand. After mid-month, Mercury will return to view with an excellent morning apparition for Northern Hemisphere observers, but a poor one for the Southern Hemisphere. The planet will reach peak visibility at greatest western elongation on November 28. Viewed in a telescope during mornings in November, Mercury's disk will diminish in apparent size and wax in illuminated phase from a thin crescent to a 68% full. Over the same period, the planet will brighten. The old crescent moon will pass north of Mercury on November 24-25.

The Brightest Visible Planets in November's Night Sky: How to See them (and When)

By Joe Rao

Here's how to see planets visible in November's night sky.

First Quarter Moon near Saturn

Best Night Sky Events of November 2019 (Stargazing Maps)

By Chris Vaughan

See what's up in the night sky for November 2019, including stargazing events and the moon's phases, in this Space.com gallery courtesy of Starry Night Software.

The night sky is more than just the moon and stars, if you know when and where to look.

Night Sky, November 2019: What You Can See This Month [Maps]

By Chris Vaughan

Find out what's up in your night sky during November 2019 and how to see it in this Space.com stargazing guide.

Star trails swirl over three smiling jack-o'-lanterns in this night-sky photo by amateur astronomer Gowrishankar L.

Halloween Night Sky 2019: Don't Miss These Celestial Treats

By Joe Rao

Skies will be mainly clear tonight (Oct. 31) across the western half of the United States, as costumed kids arrive at the door looking for candy or some other Halloween treat.

The "super worm moon" of March 21, 2019, rises over Portugal's historic Evoramonte tower.

Orange Supermoon Lights Up a Portuguese Castle in Night-Sky Photo

By Miguel Claro

A "supermoon" rises above Portugal's historic Castle of Evoramonte in this dreamy night-sky photo.