Earth Matters

November Puzzler

November 19th, 2024 by Kathryn Hansen


Every month on Earth Matters, we offer a puzzling satellite image. The November 2024 puzzler is shown above. Your challenge is to use the comments section to tell us where it is, what we are looking at, and why it is interesting.

How to answer. You can use a few words or several paragraphs. You might simply tell us the location, or you can dig deeper and offer details about what satellite and instrument produced the image, what spectral bands were used to create it, or what is compelling about some obscure feature. If you think something is interesting or noteworthy, tell us about it.

The prize. We cannot offer prize money or a trip on the International Space Station, but we can promise you credit and glory. Well, maybe just credit. Within a week after a puzzler image appears on this blog, we will post an annotated and captioned version as our Image of the Day. After we post the answer, we will acknowledge the first person to correctly identify the image at the bottom of this blog post. We also may recognize readers who offer the most interesting tidbits of information. Please include your preferred name or alias with your comment. If you work for or attend an institution that you would like to recognize, please mention that as well.

Recent winners. If you have won the puzzler in the past few months, or if you work in geospatial imaging, please hold your answer for at least a day to give less experienced readers a chance.

Releasing comments. Savvy readers have solved some puzzlers after a few minutes. To give more people a chance, we may wait 24 to 48 hours before posting comments. Good luck!

October Puzzler

October 22nd, 2024 by Kathryn Hansen

Update on October 30, 2024: This Landsat image shows ghost forests in North Carolina. Congratulations to Eric JF Kleijssen for being the first reader to identify the location. Read more about the area in “Ghost Forests Creep into North Carolina.”

Every month on Earth Matters, we offer a puzzling satellite image. The October 2024 puzzler is shown above. Your challenge is to use the comments section to tell us where it is, what we are looking at, and why it is interesting.

How to answer. You can use a few words or several paragraphs. You might simply tell us the location, or you can dig deeper and offer details about what satellite and instrument produced the image, what spectral bands were used to create it, or what is compelling about some obscure feature. If you think something is interesting or noteworthy, tell us about it.

The prize. We cannot offer prize money or a trip on the International Space Station, but we can promise you credit and glory. Well, maybe just credit. Within a week after a puzzler image appears on this blog, we will post an annotated and captioned version as our Image of the Day. After we post the answer, we will acknowledge the first person to correctly identify the image at the bottom of this blog post. We also may recognize readers who offer the most interesting tidbits of information. Please include your preferred name or alias with your comment. If you work for or attend an institution that you would like to recognize, please mention that as well.

Recent winners. If you have won the puzzler in the past few months, or if you work in geospatial imaging, please hold your answer for at least a day to give less experienced readers a chance.

Releasing comments. Savvy readers have solved some puzzlers after a few minutes. To give more people a chance, we may wait 24 to 48 hours before posting comments. Good luck!

September Puzzler

September 17th, 2024 by Kathryn Hansen

Update on October 1, 2024: This Landsat 8 image shows an A-shaped oxbow lake in Azerbaijan. Congratulations to James Varghese and Patti Sutch for being the first readers to identify the location and point out the oxbow lake. Read more about the area and the Your Name in Landsat tool in “A is for Azerbaijan.”

Every month on Earth Matters, we offer a puzzling satellite image. The September 2024 puzzler is shown above. Your challenge is to use the comments section to tell us where it is, what we are looking at, and why it is interesting.

How to answer. You can use a few words or several paragraphs. You might simply tell us the location, or you can dig deeper and offer details about what satellite and instrument produced the image, what spectral bands were used to create it, or what is compelling about some obscure feature. If you think something is interesting or noteworthy, tell us about it.

The prize. We cannot offer prize money or a trip on the International Space Station, but we can promise you credit and glory. Well, maybe just credit. Within a week after a puzzler image appears on this blog, we will post an annotated and captioned version as our Image of the Day. After we post the answer, we will acknowledge the first person to correctly identify the image at the bottom of this blog post. We also may recognize readers who offer the most interesting tidbits of information. Please include your preferred name or alias with your comment. If you work for or attend an institution that you would like to recognize, please mention that as well.

Recent winners. If you have won the puzzler in the past few months, or if you work in geospatial imaging, please hold your answer for at least a day to give less experienced readers a chance.

Releasing comments. Savvy readers have solved some puzzlers after a few minutes. To give more people a chance, we may wait 24 to 48 hours before posting comments. Good luck!

August Puzzler

August 13th, 2024 by Adam Voiland
The image shows patches of green and gray with gray lines and small white rectangles.

Update on August 23, 2024: This Landsat 8 image shows several golf courses north of Chicago. Congratulations to Jeff Pettett for being the first reader to identify the location and spot the golf courses. Read more about the area in “Golfing in Illinois.”
 
Every month on Earth Matters, we offer a puzzling satellite image. The August 2024 puzzler is shown above. Your challenge is to use the comments section to tell us where it is, what we are looking at, and why it is interesting.

How to answer. You can use a few words or several paragraphs. You might simply tell us the location, or you can dig deeper and offer details about what satellite and instrument produced the image, what spectral bands were used to create it, or what is compelling about some obscure feature. If you think something is interesting or noteworthy, tell us about it.

The prize. We cannot offer prize money or a trip on the International Space Station, but we can promise you credit and glory. Well, maybe just credit. Within a week after a puzzler image appears on this blog, we will post an annotated and captioned version as our Image of the Day. After we post the answer, we will acknowledge the first person to correctly identify the image at the bottom of this blog post. We also may recognize readers who offer the most interesting tidbits of information. Please include your preferred name or alias with your comment. If you work for or attend an institution that you would like to recognize, please mention that as well.

Recent winners. If you have won the puzzler in the past few months, or if you work in geospatial imaging, please hold your answer for at least a day to give less experienced readers a chance.

Releasing comments. Savvy readers have solved some puzzlers after a few minutes. To give more people a chance, we may wait 24 to 48 hours before posting comments. Good luck!

July Puzzler

July 23rd, 2024 by Kathryn Hansen


Update: This Landsat 8 image shows ship wakes and wind turbines in the Atlantic Ocean near Block Island, which flanks southern New England. Congratulations to Rafael and Jim Steinert for being the first to identify these features and the image’s location. Read more about the area in “A Piece of Rhode Island in the Atlantic.”

Every month on Earth Matters, we offer a puzzling satellite image. The July 2024 puzzler is shown above. Your challenge is to use the comments section to tell us where it is, what we are looking at, and why it is interesting.

How to answer. You can use a few words or several paragraphs. You might simply tell us the location, or you can dig deeper and offer details about what satellite and instrument produced the image, what spectral bands were used to create it, or what is compelling about some obscure feature. If you think something is interesting or noteworthy, tell us about it.

The prize. We cannot offer prize money or a trip on the International Space Station, but we can promise you credit and glory. Well, maybe just credit. Within a week after a puzzler image appears on this blog, we will post an annotated and captioned version as our Image of the Day. After we post the answer, we will acknowledge the first person to correctly identify the image at the bottom of this blog post. We also may recognize readers who offer the most interesting tidbits of information. Please include your preferred name or alias with your comment. If you work for or attend an institution that you would like to recognize, please mention that as well.

Recent winners. If you have won the puzzler in the past few months, or if you work in geospatial imaging, please hold your answer for at least a day to give less experienced readers a chance.

Releasing comments. Savvy readers have solved some puzzlers after a few minutes. To give more people a chance, we may wait 24 to 48 hours before posting comments. Good luck!

June Puzzler

June 18th, 2024 by Kathryn Hansen

Update on July 23, 2024: This false-color image shows a plume—likely an orographic cloud—streaming from near the summit of Antarctica’s Mount Siple. Colors in this image represent brightness temperature, which is useful for distinguishing the relative warmth (orange and pink) or coolness (purple and blue) of various features. Congratulations to Ivan Kordač for being the first to correctly identify the the image’s polar location. Read more about the area in “Stately Mount Siple.”

Every month on Earth Matters, we offer a puzzling satellite image. The June 2024 puzzler is shown above. Your challenge is to use the comments section to tell us where it is, what we are looking at, and why it is interesting.

How to answer. You can use a few words or several paragraphs. You might simply tell us the location, or you can dig deeper and offer details about what satellite and instrument produced the image, what spectral bands were used to create it, or what is compelling about some obscure feature. If you think something is interesting or noteworthy, tell us about it.

The prize. We cannot offer prize money or a trip on the International Space Station, but we can promise you credit and glory. Well, maybe just credit. Within a week after a puzzler image appears on this blog, we will post an annotated and captioned version as our Image of the Day. After we post the answer, we will acknowledge the first person to correctly identify the image at the bottom of this blog post. We also may recognize readers who offer the most interesting tidbits of information. Please include your preferred name or alias with your comment. If you work for or attend an institution that you would like to recognize, please mention that as well.

Recent winners. If you have won the puzzler in the past few months, or if you work in geospatial imaging, please hold your answer for at least a day to give less experienced readers a chance.

Releasing comments. Savvy readers have solved some puzzlers after a few minutes. To give more people a chance, we may wait 24 to 48 hours before posting comments. Good luck!

May Puzzler

May 21st, 2024 by Kathryn Hansen

Update on June 4, 2024: This image shows greenhouses in eastern China. Congratulations to James Varghese for being the first to correctly identify the feature and its location. Read more about the area in “A Greenhouse Boom in China.”

How to answer. You can use a few words or several paragraphs. You might simply tell us the location, or you can dig deeper and offer details about what satellite and instrument produced the image, what spectral bands were used to create it, or what is compelling about some obscure feature. If you think something is interesting or noteworthy, tell us about it.

The prize. We cannot offer prize money or a trip on the International Space Station, but we can promise you credit and glory. Well, maybe just credit. Within a week after a puzzler image appears on this blog, we will post an annotated and captioned version as our Image of the Day. After we post the answer, we will acknowledge the first person to correctly identify the image at the bottom of this blog post. We also may recognize readers who offer the most interesting tidbits of information. Please include your preferred name or alias with your comment. If you work for or attend an institution that you would like to recognize, please mention that as well.

Recent winners. If you have won the puzzler in the past few months, or if you work in geospatial imaging, please hold your answer for at least a day to give less experienced readers a chance.

Releasing comments. Savvy readers have solved some puzzlers after a few minutes. To give more people a chance, we may wait 24 to 48 hours before posting comments. Good luck!

On May 11, 2024, the day-night band of VIIRS (Visible Infrared Imaging Radiometer Suite) on the Suomi NPP satellite spotted the aurora borealis over the United States during the strongest geomagnetic storm in over two decades. That same night, observers on the ground captured spectacular photographs of the dazzling light. The following photos represent just a handful of those shot by citizen scientists as part of NASA’s Aurorasaurus project, which tracks aurora sightings around the planet.

Photo by Gunjan Sinha, acquired on May 11, 2024, from near Saskatoon in Saskatchewan, Canada.

Photo by Gunjan Sinha, acquired on May 11, 2024, from near Saskatoon in Saskatchewan, Canada.

Photo by Kashmir Wilkinson, acquired on May 11, 2024, from the Olympic Peninsula in Washington, U.S.

Photo by Kashmir Wilkinson, acquired on May 10, 2024, from the Olympic Peninsula in Washington, U.S.

Photo by Justin Anderson, acquired on May 11, 2024, from Steep Rock in Manitoba, Canada.

Photo by Justin Anderson, acquired on May 10, 2024, from Sydney in Manitoba, Canada.

Photo by Justin Anderson, acquired on May 10, 2024, from Sydney in Manitoba, Canada.

Photo by Christian Harris, acquired on May 11, 2024, from Utica, Ohio, U.S.

Photo by Hannahbella Nel, acquired on May 11, 2024, from the Glasfynydd Forest in Wales.

The aurora australis dazzled viewers in the southern hemisphere. Photo by Allison Jaynes, acquired on May 11, 2024, from Nugget Point on the South Island of New Zealand.

Photo by Allison Jaynes, acquired on May 11, 2024, from Nugget Point on the South Island of New Zealand.

Photo by Rebecca Douglas, acquired on May 11, 2024, from the Shetland Islands, U.K. ©Rebecca Douglas, published with permission.

April Puzzler

April 23rd, 2024 by Kathryn Hansen

Update on May 21, 2024: This image shows a phytoplankton bloom in the Gulf of Oman. It was acquired on March 17, 2024, less than two months after the launch of NASA’s PACE (Plankton, Aerosol, Cloud, ocean Ecosystem) satellite. Congratulations to Dan Taylor for being the first to correctly identify the bloom and its location. Special mention goes to Robert Taylor for providing a detailed answer, and to Timotheus Fasana, who was the only person to correctly guess the satellite and instrument. Read more about the bloom in our Image of the Day story.

Every month on Earth Matters, we offer a puzzling satellite image. The April 2024 puzzler is shown above. Your challenge is to use the comments section to tell us where it is, what we are looking at, and why it is interesting. The location of this puzzler might be relatively easy to identify, so bonus points go to those who weigh in on the “what” and “why.”

How to answer. You can use a few words or several paragraphs. You might simply tell us the location, or you can dig deeper and offer details about what satellite and instrument produced the image, what spectral bands were used to create it, or what is compelling about some obscure feature. If you think something is interesting or noteworthy, tell us about it.

The prize. We cannot offer prize money or a trip on the International Space Station, but we can promise you credit and glory. Well, maybe just credit. Within a week after a puzzler image appears on this blog, we will post an annotated and captioned version as our Image of the Day. After we post the answer, we will acknowledge the first person to correctly identify the image at the bottom of this blog post. We also may recognize readers who offer the most interesting tidbits of information. Please include your preferred name or alias with your comment. If you work for or attend an institution that you would like to recognize, please mention that as well.

Recent winners. If you have won the puzzler in the past few months, or if you work in geospatial imaging, please hold your answer for at least a day to give less experienced readers a chance.

Releasing comments. Savvy readers have solved some puzzlers after a few minutes. To give more people a chance, we may wait 24 to 48 hours before posting comments. Good luck!

March Puzzler

March 11th, 2024 by Kathryn Hansen

Update on April 23, 2024: This image shows Sortebræ, a large surge-type glacier in eastern Greenland, on September 6, 1986. Congratulations to Steward Redwood for being the first to correctly identify the glacier. Read more about the glacier and see how it has retreated in recent decades in our Image of the Day story.

Every month on Earth Matters, we offer a puzzling satellite image. The March 2024 puzzler is shown above. Your challenge is to use the comments section to tell us where it is, what we are looking at, and why it is interesting. 

How to answer. You can use a few words or several paragraphs. You might simply tell us the location, or you can dig deeper and offer details about what satellite and instrument produced the image, what spectral bands were used to create it, or what is compelling about some obscure feature. If you think something is interesting or noteworthy, tell us about it.

The prize. We cannot offer prize money or a trip on the International Space Station, but we can promise you credit and glory. Well, maybe just credit. Within a week after a puzzler image appears on this blog, we will post an annotated and captioned version as our Image of the Day. After we post the answer, we will acknowledge the first person to correctly identify the image at the bottom of this blog post. We also may recognize readers who offer the most interesting tidbits of information. Please include your preferred name or alias with your comment. If you work for or attend an institution that you would like to recognize, please mention that as well.

Recent winners. If you have won the puzzler in the past few months, or if you work in geospatial imaging, please hold your answer for at least a day to give less experienced readers a chance.

Releasing comments. Savvy readers have solved some puzzlers after a few minutes. To give more people a chance, we may wait 24 to 48 hours before posting comments. Good luck!