On Saturday, October 5, we will host the 10th annual International Observe the Moon Night. One day each year, everyone on Earth is invited to observe and learn about the Moon together, and to celebrate the cultural and personal connections we all have with our nearest celestial neighbor! This year is particularly special as we mark the 50th anniversary of the Apollo 11 Moon landing while looking forward to our Artemis program, which will send the first woman and next man to the Moon.

There are many ways to participate in International Observe the Moon Night. You can attend an event, host your own or just look up! Here are 10 of our favorite ways to observe the Moon.

1. Look up

Image Credit: NASA’s Scientific Visualization Studio/Ernie Wright

The simplest way to observe the Moon is simply to look up. The Moon is the brightest object in our night sky, the second brightest in our daytime sky and can be seen from all around the world — from the remote and dark Atacama Desert in Chile to the brightly lit streets of Tokyo. On October 5, we have a first quarter Moon, which means that the near side of the Moon will be 50 percent illuminated. The first quarter Moon is a great phase for evening observing. Furthermore, the best lunar observing is typically along the Moon's terminator (the line between night and day) where shadows are the longest, rather than at full Moon. See the Moon phase on October 5 or any other day of the year!

2. Peer through a telescope or binoculars

Image Credit: NASA/Molly Wasser

With some magnification help, you will be able to focus in on specific features on the Moon. In honor of this year’s 50th Anniversary of the Apollo 11 Moon Landing, see if you can find Mare Tranquillitatis (Sea of Tranquility)! Download our Moon maps for some guided observing on Saturday.

3. Photograph the Moon

Image Credit: NASA/GSFC/Arizona State University

Our Lunar Reconnaissance Orbiter (LRO) has taken more than 20 million images of the Moon, mapping it in stunning detail. You can see featured, captioned images on LRO’s camera website, like the crater seen above. And, of course, you can take your own photos from Earth. Check out our tips on photographing the Moon!

4. Relax on your couch

Image Credit: NASA’s Scientific Visualization Studio/Ernie Wright

Is it cloudy? Luckily, you can observe the Moon from the comfort of your own home. The Virtual Telescope Project will livestream the Moon from above the Roman skyline. Or, you can take and process your own lunar images with the MicroObservatory Robotic Telescopes. Would you prefer a movie night? There are many films that feature our nearest neighbor. Also, you can spend your evening with our lunar playlist on YouTube or this video gallery, learning about the Moon’s role in eclipses, looking at the Moon phases from the far side and seeing the latest science portrayed in super high resolution.

5. Touch the topography

Image Credit: NASA GSFC/Jacob Richardson

Observe the Moon with your hands! If you have access to a 3D printer, you can peruse our library of 3D models and lunar landscapes. This collection of Apollo resources features 3D models of the Apollo landing sites using topographic data from LRO and the SELENE mission. The 3D printed model you see above is of the Ina D volcanic landform.

6. Make and admire Moon art

Image Credit: LPI/Andy Shaner

Enjoy artwork of the Moon and create your own! For messy fun, lunar crater paintings demonstrate how the lunar surface changes due to frequent meteorite impacts.

7. Listen to the Moon

Image Credit: NASA Explorers: Apollo/System Sounds

Treat your ears this International Observe the Moon Night. Our audio series, NASA Explorers: Apollo features personal stories from the Apollo era to now, including yours! You can participate by recording and sharing your own experiences of Apollo with us. Learn some lunar science with the second season of our Gravity Assist podcast with NASA Chief Scientist, Jim Green. Make a playlist of Moon-themed songs. For inspiration, check out this list of lunar tunes. We also recommend LRO’s official music video, The Moon and More, featuring Javier Colon, season 1 winner of NBC’s “The Voice.” Or you can watch this video featuring “Clair de Lune,” by French composer Claude Debussy, over and over.

8. Take a virtual field trip

Image Credit: NASA/SSERVI

Plan a lunar hike with Moon Trek. Moon Trek is an interactive Moon map made using NASA data from our lunar spacecraft. Fly anywhere you’d like on the Moon, calculate the distance or the elevation of a mountain to plan your lunar hike, or layer attributes of the lunar surface and temperature. If you have a virtual reality headset, you can experience Moon Trek in 3D.  

9. See the Moon through the eyes of a spacecraft

Image Credit: NASA/GSFC/MIT

Visible light is just one tool that we use to explore our universe. Our spacecraft contain many different types of instruments to analyze the Moon’s composition and environment. Review the Moon’s gravity field with data from the GRAIL spacecraft or decipher the maze of this slope map from the laser altimeter onboard LRO. This collection from LRO features images of the Moon’s temperature and topography. You can learn more about the different NASA missions to explore the Moon here.

10. Continue your observations throughout the year

Image Credit: NASA’s Scientific Visualization Studio/Ernie Wright

An important part of observing the Moon is to see how it changes over time. International Observe the Moon Night is the perfect time to start a Moon journal. See how the shape of the Moon changes over the course of a month, and keep track of where and what time it rises and sets. Observe the Moon all year long with these tools and techniques!

However you choose to celebrate International Observe the Moon Night, we want to hear about it! Register your participation and share your experiences on social media with #ObserveTheMoon or on our Facebook page. Happy observing!

Weather permitting, you can observe the Moon most nights, unless it's a new moon, when the lighted side of the Moon faces away from Earth. The Moon is by far the brightest object in the night sky and there's plenty to see. But this week is special...

...October 28 is International Observe the Moon Night (also known as InOMN).

Here's all you need to know to join in and celebrate:

1. One Planet. One Moon. One Night.

Everyone on Earth is invited to join the celebration by hosting or attending an InOMN event and uniting on one day each year to look at and learn about the Moon together.

2. What's Up?

October's night skies are full of sights, from the first quarter Moon on InOMN to Saturn making a cameo appearance above the Moon October 23 and 24. Watch our What's Up video for details.

3. Be Social

Hundreds of events are planned around the globe. Click the top link on this page for a handy map. You can also register your own event.

4. Don't Just Stand There

Here are some activities for enhanced Moon watching.

5. Impress Your Friends with Moon Knowledge

Download InOMN flyers and handouts, Moon maps and even some pre-made presentations. There's even a certificate to mark your participation.

6. Guide to the Face of the Moon

Almost dead center on the Earth-facing side of the Moon is the Surveyor 6 robotic spacecraft impact side. Apollo 12 and 14 are a bit to the left. And Apollo 11 - the first steps on the moon - are to the right. This retro graphic tells the whole story.

7. Moon Shots

NASA photographers have done some exceptional work capturing views of the Moon from Earth. Here are a few galleries:

You can't have a solar eclipse without the Moon.

The 2016 "Supermoon" was pretty spectacular.

The Moon gets eclipsed, too.

That IS a Moon - AND the International Space Station.

The Moon is always a great photo subject.

Some spooky shots of the 2014 "Supermoon."

And 2013.

Tips from a NASA pro for photographing the Moon.

8. Walking on the Moon

Twelve human beings walked on the face of the Moon. Here are some of the best shots from the Apollo program.

9. Moon Watch

Our Lunar Reconnaissance Orbiter is up there right now, mapping the moon and capturing some spectacular high-resolution shots.

10. Keep Exploring

Make our Moon portal your base for further lunar exploration.

Check out the full version of ‘Ten Things to Know This Week’ HERE.

...In honor of International Observe the Moon Night

October 28th is International Observe the Moon Night, a worldwide, public celebration of lunar science and exploration held annually since 2010 thanks to our Lunar Reconnaissance Orbiter (LRO) mission team and partners. One day each year, everyone on Earth is invited to observe and learn about the Moon together, and to celebrate the cultural and personal connections we all have with our planet’s nearest neighbor.

Here are 5 things that might surprise you about the Moon.

1. There has been a spacecraft there for 100 lunar days

In October 2017, LRO celebrates one hundred days of collecting scientific data at the Moon. One hundred Moon days. From our perspective on Earth, one lunar day is one full phase cycle, or about 29.5 Earth days. That's 100 opportunities to observe changes from night to day, photograph the surface at different Sun angles, measure rising and falling temperatures, study the way certain chemicals react to the daily light and temperature cycle, and increase our understanding of the Moon as a dynamic place.

2. You can still see the paths left by Apollo astronauts’ boot prints and rovers

Much of the lunar surface is covered in very fine dust. When Apollo astronauts landed on the Moon, the descent stage engine disturbed the dust and produced a distinct bright halo around the lunar module. As astronauts moved around, their tracks exposed the darker soil underneath, creating distinct trails that we know, thanks to LRO, are still visible today. The Moon has no atmosphere, so there is no wind to wipe away these tracks.

3. The Moon has tattoos!

Observations from LRO show mysterious patterns of light and dark that are unique to the Moon. These lunar swirls look painted on, like the Moon got ‘inked.’ Lunar swirls, like these imaged at Reiner Gamma by LRO, are found at more than 100 locations across the lunar surface. Lunar swirls can be tens of miles across and appear in groups or as isolated features. 

Researchers think these patterns form in places where there’s still a remnant of the Moon’s magnetic field. There are still many competing theories about how swirls form, but the primary idea is that the local magnetic field deflects the energetic particles in the solar wind, so there’s not as much weathering of the surface. The magnetically shielded areas would then look brighter than everything around them.

4. There were once active volcanoes, that shaped what we see now

Early astronomers named the large dark spots that we see on the near side of the Moon “maria,” Latin for “seas,” because that’s what they thought they were. We now know that the dark spots are cooled lava, called basalt, formed from ancient volcanic eruptions. The Moon’s volcanoes are no longer active, but their past shapes the Moon that we see today. The Moon doesn’t have large volcanoes like ones in Hawaii, but it does have smaller cones and domes. 

Other small features derived from volcanic activity include rivers of dried lava flows, like the ones visible in this image of Vallis Schroteri taken by LRO, and dark areas formed from eruptive volcanoes that spewed fire. For many years, scientists thought the Moon’s volcanic activity died out long ago, but there’s some evidence for relatively “young” volcanism, suggesting that the activity gradually slowed down instead of stopping abruptly.

5. Anyone, anywhere can participate in International Observe the Moon Night.  

How to celebrate International Observe the Moon Night

Attend an event –  See where events are happening near you by visiting http://observethemoonnight.org

Host an event – Call up your neighbors and friends and head outdoors – no special equipment is needed. Let us know how you celebrated by registering your event!

Don’t let cloudy weather get you down! Observe the Moon in a variety of ways from the comfort of indoors – View stunning lunar vistas through images and videos, or explore the Moon on your own with QuickMap or Moon Trek

Join the worldwide conversation with #ObserveTheMoon on Twitter, Instagram and Facebook

For regular Moon-related facts, updates and science, follow @NASAMoon on Twitter

What’s Up For October? 

Planet Pairs, Stellar Superstars, Observe The Moon Night!!

This month, catch planet pairs, our moon near red stars, an asteroid, meteors and International Observe the Moon Night!

You can't miss bright Venus in the predawn sky. Look for fainter Mars below Venus on the 1st, really close on the 5th, and above Venus after that.

Midmonth, the moon is visible near Regulus, the white starry heart of the constellation Leo.

In the October 8-11 predawn sky watch the moon glide near the Pleiades star cluster and pass near the red stars Aldebaran in the constellation Taurus and Betelgeuse in Orion.

After dusk in the early part of the month look for Saturn in the southwest sky above another red star: Antares in Scorpius. Later in the month, find the moon above Antares October 22 and 23.

Saturn will be above the moon on the 23rd and below it on the 24th.

Uranus reach opposition on October 19th. It's visible all night long and its blue-green color is unmistakeable. It may be bright enough to see with your naked eye--and for sure in binoculars.

The Orionids peak on October 20--a dark, moonless night. Look near Orion's club in the hours before dawn and you may see up to 10 to 15 meteors per hour.

Use binoculars to look for bright asteroid 7 Iris in the constellation Aries. Newbies to astronomy should be able to spot this magnitude 6.9 asteroid - even from the city. 

Look later in the month and sketch its positions a day or two apart--to see it move.

Finally, celebrate International Observe the Moon Night on October 28 with your local astronomy club, Solar System Ambassador, museum, or planetarium. The first quarter moon that night will display some great features!

Watch the full What’s Up for October Video: 

La Noche Internacional de Observación de la Luna es un momento para reunirse y observar la Luna, nuestro precioso satélite natural. Este evento se celebrará este año 2024 la noche del 14 de septiembre. Todos en la Tierra estamos invitados a aprender sobre la ciencia y la exploración lunares, participar en observaciones celestiales y honrar las conexiones culturales y personales con la Luna. La…