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Newly discovered comet to flyby Earth

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Last Updated on June 29, 2024 by Daily News Staff

Astronomers have recently spotted a newly-referenced comet C/2023 A3 that is heading towards the Earth. C/2023 A3 (Tsuchinshan–ATLAS) is a comet from the Oort cloud discovered by ATLAS South Africa on 22 February 2023 and independently found in images by the Purple Mountain Observatory taken on 9 January 2023.

The comet has a retrograde orbit, lying at an inclination of 139°. The comet has its perihelion at a distance of 0.391 AU, a point where it comes nearest to the Sun in its orbital path. Its closest approach to Earth will be around 12 October 2024, at a distance of 0.47 AU. Remarkably, the comet doesn’t approach close to the giant planets of the solar system, meaning its path is relatively unaffected by their significant gravitational forces.

Its orbit is weakly hyperbolic before entering the planetary region of the Solar System, indicating that it originally comes from a distant or even interstellar region beyond Neptune. However, due to planetary perturbations—small deviations in its path caused by the gravitational influence of other celestial bodies—the outbound orbit will have a greater eccentricity than the inbound orbit. This change in its orbital shape means that after its closest approach to the Sun and Earth, it will move away on a more elongated path than when it arrived.

Comet C/2023 A3

The discovery of C/2023 A3 offers significant opportunities for astronomers to study the characteristics of comets originating from the Oort cloud, understanding both their physical properties and the dynamics of their orbits. Observing such comets can also provide valuable insights into the early solar system, as many of these bodies have remained relatively unchanged since their formation. As the comet approaches, scientists will likely utilize a range of observational tools to analyze its composition, measure its tail and coma, and monitor its interactions with solar winds and radiation.

In conclusion, the journey of comet C/2023 A3 through our solar system promises to be a valuable event for the scientific community, enhancing our comprehension of cometary behavior and the intricate gravitational dance within our celestial neighborhood.

comet C/2023 A3
By Филипп Романов (Filipp Romanov) – Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=129174444

According to the latest observations, C/2023 A3 has an estimated diameter of 1.2 kilometers (0.75 miles) and is currently traveling at a speed of about 20 kilometers per second (12.4 miles per second). When it makes its closest approach to the Earth, C/2023 A3 will be about 0.47 AU away from our planet and will be brighter than the “green comet” from earlier this year. That translates to an opportunity for amateur astronomers to easily spot the comet in the sky.

While C/2023 A3 is not expected to pose a direct threat to the Earth, it is still an important object of study for astronomers. Comets are remnants of the early solar system, and they contain valuable information about the conditions and processes that occurred during its formation.

One of the main goals of studying comets is to understand the origin of water and other volatile compounds on Earth. It is believed that these substances were brought to our planet by comets and asteroids that collided with it billions of years ago. This process allowed essential ingredients for life to be deposited on our planet, playing a crucial role in the development of our biosphere. Modern-day studies involving space missions and advanced telescopes are crucial in testing these theories by analyzing the chemical signatures and isotopic compositions found in comets.

In addition to studying the composition of comets, astronomers also use them as probes to explore the outer reaches of the solar system. By analyzing the trajectory and behavior of comets, they can gain insights into the dynamics and structure of the solar system as a whole. For instance, long-period comets can provide clues about the distant regions of the solar system, such as the Oort Cloud, which is believed to be a vast reservoir of icy bodies. The gravitational interactions of these comets with giant planets like Jupiter also reveal intricate details about planetary formation and migration.

Moreover, comets like C/2023 A3 are invaluable for comparative planetology – the study of planetary systems as a whole. By understanding the similarities and differences between comets and other small bodies like asteroids, scientists can better explain the history and evolution of our solar system. These differences might include variations in composition, rotational speeds, and orbital paths, each piece contributing to the broader puzzle of our cosmic neighborhood.

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C/2023 A3 is just one of many comets that have been discovered in recent years, but its study highlights the importance of continued efforts to monitor and study these celestial objects. Advanced surveillance and tracking systems are constantly improving our ability to predict the paths of near-Earth objects and to discern potential risks. The data collected from these observations not only helps to protect our planet from potential impacts but also enhances our theoretical models of solar system evolution.

As our knowledge of comets grows, so too does our understanding of the early solar system and the conditions that led to the emergence of life on Earth. Each comet studied brings new information that can corroborate or challenge existing scientific theories. Collaborative efforts between international space agencies, research institutions, and amateur astronomers are essential. With new missions on the horizon, such as those aiming to return comet samples to Earth, the next decade promises to be an exciting time for cometary science.

In conclusion, the discovery of C/2023 A3 is an exciting development for astronomers, and it provides an exceptional opportunity to learn more about the composition and behavior of comets. While it is not expected to pose a direct threat to the Earth, it serves as a reminder of the importance of monitoring and studying near-Earth objects to ensure the safety of our planet. Continuing to unravel the mysteries of these ancient cosmic travelers will deepen our comprehension of our place in the universe and the myriad processes that have shaped our solar system.

https://en.wikipedia.org/wiki/C/2023_A3_(Tsuchinshan%E2%80%93ATLAS)

https://stmdailynews.com/category/science/

Sources: Wikipedia, Earth-Sky

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  • Rod Washington

    Rod: A creative force, blending words, images, and flavors. Blogger, writer, filmmaker, and photographer. Cooking enthusiast with a sci-fi vision. Passionate about his upcoming series and dedicated to TNC Network. Partnered with Rebecca Washington for a shared journey of love and art.

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Rod: A creative force, blending words, images, and flavors. Blogger, writer, filmmaker, and photographer. Cooking enthusiast with a sci-fi vision. Passionate about his upcoming series and dedicated to TNC Network. Partnered with Rebecca Washington for a shared journey of love and art.

Science

Seeing an eclipse from Earth is awe‑inspiring – for astronauts seeing one from space, the scene was even more grand

Discover the stunning eclipse seen by Artemis II astronauts during their 2026 Moon mission. A truly extraordinary spectacle awaits.

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Seeing an eclipse from Earth is awe‑inspiring – for astronauts seeing one from space, the scene was even more grand
During a total solar eclipse, the Sun is barely visible behind the Moon. Roger Sorensen

Deana L. Weibel, Grand Valley State University

The astronauts on Artemis II’s trip to the Moon in April 2026 didn’t just have an amazing journey through space. They also saw something extraordinary. They were the first humans to see a total solar eclipse from space.

A solar eclipse happens when the Moon moves in front of the Sun. In a total eclipse, the Sun’s central disc is covered completely.

From Earth, the circle of the Sun is about the same size as the circle of the Moon. With the bright circle blocked, you can see the undulating rays of the Sun’s corona, or outer atmosphere, that are normally too dim to be observed.

Moon covering most, then all, then most of the Sun
Composite image of moments before, during and after totality. NASA/Aubrey Gemignani

I’m a cultural anthropologist who studies awe-inspiring aspects of space exploration. I have been lucky enough to have seen two total solar eclipses. The first one was in Nebraska in 2017, the second in Indiana in 2024.

During my second total eclipse, the period of totality – that short span when you can remove your protective glasses and look directly at the eclipse – lasted close to 4 minutes. I saw waves of diffuse light snaking around an ink-black hole in the sky. It looked very wrong – almost alien.

On Aug. 12, 2026, there will be another total solar eclipse, visible only from Greenland, Iceland, Spain and the Balearic Islands of the Mediterranean. Some fortunate viewers in Spain and nearby islands may see the eclipse just before sunset, low on the horizon. The Moon illusion, a phenomenon where the Moon looks bigger when it’s near the horizon, might make this eclipse look unusually large.

Unusual eclipse perspectives

Astronauts will occasionally also have less common eclipse experiences. I interviewed one I call by the pseudonym “Jackie” in my research about astronauts’ experiences of awe. She was part of an astronaut training group that did a flight exercise during a total solar eclipse.

Jackie and her squad flew their jets in the shadow of the Moon. This lengthened their time in totality because they could follow and stay within the shadow. Jackie was most impressed with how the Sun’s corona seemed to shift and ripple.

“It’s not static … it’s alive,” she told me.

On April 6, 2026, the astronauts of NASA’s Artemis II mission saw another kind of unusual eclipse as they flew around the Moon. At one point during their flight, the Moon and the spacecraft aligned so that the Moon was directly between them and the Sun, blocking the Sun’s disk in a way that looks very different from what we see on Earth.

Astronaut Victor Glover said it felt like they “just went sci-fi.” https://www.youtube.com/embed/YLjPci5bo1k?wmode=transparent&start=0 ‘An impressive sight’: The Artemis II crew were the first humans to observe a solar eclipse from near the Moon.

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The astronauts were so close to the Moon that the Moon looked bigger than the Sun and hid more of its bright circle. Earth was also in view, and sunlight reflected from the Earth onto the Moon in a phenomenon NASA calls “earthshine.” This dim light is very similar to the moonlight that shines on the Earth at night.

Imagine the Sun hidden behind the Moon, creating a hazy halo around the Moon’s edges. At the same time, faint light reflected from Earth softly illuminates the Moon, revealing mountains and craters in a dim twilight. Now imagine this striking scene lasting 54 minutes.

This sight was, without a doubt, one of the most unusual eclipses ever seen by human eyes.

Although Artemis’ astronauts are trained to think scientifically, this experience propelled them into a state of awe. They talked openly about how their brains were “not processing” what they observed. While NASA kept them busy with a variety of tasks, the sound of emotion and excitement in their voices as they broadcast live from their lunar flyby was unmistakable.

An eclipse visible from space - the Moon is shown shadowed with some sunlight visible behind it, and part of the Orion capsule shown off to the left.
The Moon during a solar eclipse on April 6, 2026, photographed by one of the Orion spacecraft’s cameras during Artemis II. Earth is reflecting sunlight at the left edge of the Moon, called ‘earthshine.’ NASA

The psychology of awe

Researchers have studied the effects of awe on the human brain, including awe felt during solar eclipses. Moments of wonder like these can transform how you feel and even how you think, making you more thoughtful and open-minded.

In my own work I’ve found these experiences can change how astronauts understand their own place in the universe.

One astronaut said she gained an awareness of the fragility of our planet that now shapes everything she does, while another described becoming more curious after returning to Earth. A third said the awe he experienced in lunar orbit changed his understanding of time and infinity.

Space travel creates many opportunities for awe, but a solar eclipse from behind the Moon, as Mission Commander Reid Wiseman put it, required “20 new superlatives.”

It’s an experience most of the earthbound eclipse-chasers heading to Greenland or Iceland or Spain this summer will only dream about. Whether eclipses happen in space or on Earth, though, close encounters with the grandeur of our universe can make you feel profoundly human.

Deana L. Weibel, Professor of Anthropology, Grand Valley State University

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This article is republished from The Conversation under a Creative Commons license. Read the original article.

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Science

After the Blood Moon: Scientists and Skywatchers React to the March 3, 2026 Total Lunar Eclipse

The March 3, 2026 total lunar eclipse amazed skywatchers worldwide. Scientists and amateur astronomers share reactions and photos from the dramatic blood moon event.

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Last Updated on March 5, 2026 by Daily News Staff

Millions of people around the world looked to the sky in the early hours of March 3, 2026 to witness one of the most striking astronomical events of the year — a total lunar eclipse, often referred to as a “Blood Moon.” As the Moon passed completely into Earth’s shadow, it transformed from its familiar silver glow into a deep copper-red color, captivating observers from North America to Asia and across the Pacific.

AdobeStock 217349871


Blood Moon Aftermath: Scientists and Skywatchers React to the March 3, 2026 Total Lunar Eclipse

For viewers in the western United States, including Arizona and California, the eclipse occurred just before sunrise. The timing created a dramatic scene as the reddish Moon hovered low in the western sky while the eastern horizon began to brighten with dawn.

A Global Skywatching Event

Total lunar eclipses occur when the Sun, Earth, and Moon align so that Earth’s shadow completely covers the Moon. During the March 3 event, the Moon spent nearly an hour fully inside the darkest part of Earth’s shadow, known as the umbra. During this phase, sunlight filtered through Earth’s atmosphere projected reddish light onto the Moon’s surface, creating the dramatic “blood moon” effect.

Astronomers noted that the event was particularly significant because total lunar eclipses are relatively infrequent. While partial eclipses occur more often, a full eclipse visible across large portions of the globe remains a memorable experience for both scientists and casual observers.

Scientists Explain the Phenomenon

According to researchers at NASA, the reddish color seen during totality occurs because Earth’s atmosphere scatters shorter wavelengths of sunlight — such as blue — while allowing longer red wavelengths to pass through. This filtered light is then bent, or refracted, into Earth’s shadow and projected onto the Moon.

Planetary scientists say lunar eclipses provide a powerful visual demonstration of the geometry of the Earth–Moon–Sun system. The curved shadow moving across the Moon also historically served as one of the earliest pieces of evidence that Earth is spherical.

Researchers also point out that lunar eclipses offer opportunities to study Earth’s atmosphere. Variations in dust, volcanic particles, and atmospheric conditions can influence how dark or red the Moon appears during totality.

img 2221
Taken in North Phoenix around 5 AM MST March 3, 2026

Amateur Astronomers Share Their Views

While professional observatories monitored the eclipse with precision instruments, amateur astronomers and astrophotographers helped document the event from countless locations worldwide. Social media platforms and astronomy forums quickly filled with images showing the Moon’s color shifting from pale gray to orange and deep red.

Many skywatchers in the southwestern United States described the experience as particularly dramatic because the eclipse occurred just before moonset. Observers reported seeing the Moon glowing red above desert landscapes and city skylines before gradually fading into the brightening morning sky.

Astrophotographers also emphasized that lunar eclipses are among the easiest astronomical events to capture. Unlike solar eclipses, they can be photographed safely without special filters, making them accessible to beginners using smartphones as well as professionals using telescopes and high-end cameras.

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A Rare Pre-Dawn Sight

In parts of the western United States, some observers were able to witness a rare atmospheric phenomenon known as a selenelion, when both the eclipsed Moon and the rising Sun appear in the sky at the same time due to atmospheric refraction. The effect added an unusual visual element to an already impressive celestial event.

The combination of a deep red Moon and the approaching dawn created striking photographic opportunities and memorable moments for early-morning skywatchers.

When Is the Next Total Lunar Eclipse?

Although partial eclipses occur periodically, the next widely visible total lunar eclipse will not occur until late 2028. That makes the March 2026 eclipse one of the most notable skywatching events of the decade.

For many observers, the event served as a reminder that some of the most spectacular astronomical experiences require nothing more than stepping outside, looking up, and taking a moment to appreciate the universe above.

References and Further Reading

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  • Rod Washington

    Rod: A creative force, blending words, images, and flavors. Blogger, writer, filmmaker, and photographer. Cooking enthusiast with a sci-fi vision. Passionate about his upcoming series and dedicated to TNC Network. Partnered with Rebecca Washington for a shared journey of love and art.

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Breaking News

🌕 Blood Moon Over Arizona: Total Lunar Eclipse Visible in Phoenix on March 3, 2026

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Last Updated on March 2, 2026 by Daily News Staff

Early risers in Arizona are in for a celestial show.

A total lunar eclipse will be visible in Phoenix on March 3, 2026. Here are exact viewing times, what to expect, and how to watch the Blood Moon in Arizona.

On Tuesday, March 3, 2026, a total lunar eclipse will be visible across much of North America — including Phoenixand the Valley. During this event, the Moon will pass completely into Earth’s shadow, turning a deep copper-red color often called a “Blood Moon.”

Here’s what you need to know.


Geometry of a Lunar Eclipse.svg
A schematic diagram of the shadow cast by Earth. Within the umbra, the central region, the planet totally shields direct sunlight. In contrast, within the penumbra, the outer portion, the sunlight is only partially blocked. SunMoon, and Earth sizes and distances between them not to scale.

🌍 What Is a Total Lunar Eclipse?

A total lunar eclipse happens when the Sun, Earth, and Moon align perfectly, with Earth positioned directly between the Sun and the Moon. As the Moon moves into Earth’s darkest shadow (the umbra), it doesn’t disappear — instead, it glows red.

That reddish color comes from sunlight filtering through Earth’s atmosphere — essentially, we’re seeing all the world’s sunrises and sunsets projected onto the Moon at once.


🕒 Phoenix Viewing Times (MST)

Arizona does not observe Daylight Saving Time in March, so these times are in Mountain Standard Time (MST).

  • 1:44 a.m. – Penumbral eclipse begins (subtle dimming begins)
  • 2:50 a.m. – Partial eclipse begins (Earth’s shadow becomes clearly visible)
  • 4:04 a.m. – Totality begins 🌕
  • 4:34 a.m. – Greatest eclipse
  • 5:03 a.m. – Totality ends
  • 6:18 a.m. – Partial eclipse ends
  • 7:20 a.m. – Penumbral eclipse ends
Lunar eclipse contact diagram.svg
Vectorised by User:Sushant savla from the work by Tomruen – File:Lunar eclipse contact diagram.png

The most dramatic portion — totality — lasts nearly one hour.


🌅 Where to Look in Phoenix

The eclipse happens in the pre-dawn hours, so the Moon will be low in the western sky as it sets.

For the best view:

  • Find a location with a clear western horizon
  • Avoid city light glare if possible
  • Consider desert viewpoints, parks, or elevated areas around the Valley

Because the Moon will be setting as the Sun begins to rise, the backdrop of early morning twilight could make for stunning photography.

AdobeStock 284042140

🔭 Do You Need Special Equipment?

No.

Unlike a solar eclipse, lunar eclipses are completely safe to view with the naked eye. However:

  • Binoculars enhance color detail
  • A small telescope reveals subtle shadow gradients
  • A tripod and DSLR or smartphone with night mode can capture impressive images

🌎 Why This Eclipse Matters

This will be one of the most accessible celestial events of 2026 for Arizona residents. Total lunar eclipses don’t happen every year in the same location, and the timing — just before sunrise — adds dramatic visual contrast.

If skies are clear, Phoenix could have a spectacular view.


📌 Quick Viewing Reminder for Phoenix

Set your alarm for around 3:45 a.m.

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Step outside by 4:00 a.m.

Look west

Watch the Moon turn red

No tickets. No crowds. Just the sky putting on a show.


For more science, space, and Arizona skywatching coverage, visit STM Daily News.


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