Astronomical Events Calendar — June 2026
A Universe in Motion
May 30 — Meteor Explosion in 2026
Meteors, mostly in the form of dust constantly rains down on Earth. But residents on the coast of New England where shocked to hear a loud boom about 2:11 p.m. Eastern Time which has been determined to be a meteorite. The size, type, and composition has yet to be determined.
June 1 — Waning Gibbous Moon
The Moon has been humanity’s companion since before we began recording history. Every crater, mountain range, and shadow tells a story written over billions of years. When you look through a telescope at the Moon, you are not just seeing something far away, you are exploring another world with your own eyes. To learn more about the moon, get some decent moon maps, and draw what you see, like Galileo did in November and December 1609. You'll be amazed at the fine detail of mountains and craters that you will detect by making a drawing, rather than just scanning with your eyes alone.
June 2 — 60th Anniversary of Surveyor 1 Landing on the Moon
Before astronauts could leave footprints on the lunar surface, we first had to learn how to gently touch another world. Surveyor 1 was a reminder that exploration happens one careful step at a time. The landing site was in the Ocean of Storms.
The site was chosen because it looked smooth enough to allow humans to land on the moon from our telescopic views from Earth. Upon the successful landing we learned that the surface was strong enough to support a lander without sinking in or tipping over. It also gave us more confidence that astronauts could safely walk on the moon. Surveyor 1 landed at 2.5° south latitude, 43.3° west longitude (lunar coordinates), near the Moon's equator which made it safer for landing and return (although Surveyor 1 is still on the surface today). The location also conserved fuel, and provided the easiest path from Earth, all in preparation for the Apollo missions.
The straight line from Galileo to today's Moon missions is that Galileo revealed the Moon was a world with mountains and valleys and 360 years later, Surveyor 1 proved that world could be reached. Eventually Apollo proved humanity could become part of that landscape.
June 8 — Last Quarter Moon
As the Moon moves out of the evening sky, the deeper universe begins to reveal itself. This changing rhythm reminds us that the night sky rewards patience. There is always something new waiting, sometimes we simply need the darkness to discover it.
June 8th is also the birthday of the author of this calendar!!
June 8–9 — Venus and Jupiter Conjunction
When two brilliant planets appear close together in the sky, we are seeing the beautiful geometry of our solar system. These moments remind us that we are not just looking into space — we are watching worlds in motion from our own moving planet.
June 9–13 — The Moon Visits the Morning Sky
There is something special about stepping outside before sunrise and seeing the Moon waiting in the morning sky. While much of the world is still waking up, the universe is already in motion, offering a new perspective to anyone willing to look.
June 10 — Moon Near Saturn
Saturn has changed countless lives at the eyepiece of a telescope. Many people never forget the first time they see its rings and realize they are looking at a real place, not a picture in a book. In that moment, the universe becomes personal. Trust me, nobody sees Saturn with its beautiful rings for the first time and walks away unchanged.
June 11–18 — Prime Deep-Sky Observing Window
Under a dark sky, the Milky Way reminds us that we are inside something far larger than ourselves. Every galaxy, nebula and star cluster carries a story of creation, transformation, and time. The universe is not only around us — we are part of its continuing story. Indeed it was my desire to look at the most distant galaxies that took me on a lifelong journey to explore the cosmos.
June 15 — New Moon
The absence of moonlight gives us one of astronomy’s greatest gifts — darkness. In that darkness we discover countless stars, galaxies, and wonders that were always there waiting for us. Sometimes seeing farther requires removing what is brightest in front of us. To get the maximum effect, set up your telescope far enough away from city lights so that the Milky Way is obvious to you, preferably at higher elevation.
June 15 — Mercury at Greatest Eastern Elongation
Mercury challenges observers because it never wanders far from the Sun, and you might be surprised by how many astronomers have never seen it with their own eyes. Finding it requires timing, patience, and understanding. Astronomy teaches us that discovery often comes not from convenience, but from learning where and when to look.
June 16 — First Woman in Space Anniversary
Valentina Tereshkova’s journey showed that space exploration is a human story, not limited by borders or expectations. Each person who reaches beyond what others thought possible expands the horizon for everyone who follows.
This Russian Cosmonaut came from Maslennikovo, a small rural village. She became a textile worker and amateur parachutist, which caught the attention of the Soviet Space Program. Her story is powerful because it shows that explorers do not always begin in famous laboratories or wealthy circumstances. Sometimes they begin in small villages, looking up at the same sky as everyone else.
June 16–18 — Crescent Moon Joins Mercury, Venus, and Jupiter
A young Moon surrounded by planets gives us a beautiful view of our solar system family. Standing beneath that sky, we can remember that Earth is also one of those worlds — traveling together with the others around our star. This is probably the most spectacular celestial event of the month. Get out the binoculars, turn on some soothing music, relax in an outdoor chair, and sip your favorite beverage. This dance of the planets will calm you, as you watch each world sink into the horizon.
June 18 — Sally Ride Becomes the First American Woman in Space
Sally Ride inspired generations because she represented possibility. The greatest achievement of exploration is not only reaching new places, but inspiring others to believe that they can take the next journey. I had the pleasure to briefly meet Sally Ride and get her autograph on my star chart during one of her Sally Ride Science events.
June 21 — June Solstice
The solstice connects us with something ancient. Long before modern science, people watched the Sun’s motion and discovered patterns that helped them understand their world. Today, we continue that same human tradition of looking up and learning.
While there are some amazing archeoastronomy sites around the world where ancient constructions were set up to align with the sun during the June Solstice, like Stonehenge, Chaco Canyon New Mexico is on my bucket list, where the ancient Pueblo people created an astronomical landscape where architecture and sunlight reveal a deep understanding of celestial cycles.
June 21 — First Quarter Moon
The first quarter Moon is one of the best reminders that worlds are shaped by light and shadow. Along the lunar terminator, mountains rise, craters appear, and another world reveals its landscape one night at a time.
June 24 — Fred Hoyle Birthday
The story of stars is also the story of us. The elements that make our planet — and even ourselves — were created through chemical cosmic processes called stellar nucleosynthesis that began long before Earth existed. Astronomy reveals that we are connected to the universe in the most fundamental way.
One of the least-known and most fascinating aspects of Fred Hoyle is that he may have done as much to inspire the public imagination about astronomy as he did to advance astrophysics.
In 1950, he delivered a series of BBC radio lectures called “The Nature of the Universe.” They became enormously popular and introduced complex cosmology to ordinary listeners. Before television science personalities became common, millions of people were hearing Hoyle explain the life cycles of stars and the scale of the cosmos through their radios.
June 26 — Charles Messier Birthday
Charles Messier created a catalog while searching for comets (as objects to avoid), but generations later it became a pathway for millions of people discovering the deep sky. Sometimes our work reaches farther into the future than we ever imagine.
Starting in the 1750's Charles Messier worked as an astronomer at the historic Hôtel de Cluny. Despite the word “Hôtel,” it was never a lodging hotel. Today you can visit the mansion, it is called the Musée de Cluny – Musée national du Moyen Âge, the National Museum of the Middle Ages, and I hear that the best place to stay in the area is the Hôtel Les Dames du Panthéon, that is just about 10 minutes walking distance to the historic place where Messier made many famous observations.
June 29 — Full Strawberry Moon
A Full Moon rising over the horizon has connected people across cultures and generations. Everyone who has ever looked up has shared the same Moon. It is a reminder that astronomy belongs to all of humanity.
The Strawberry Moon reminds us that the sky has always been humanity’s calendar. Long before we measured time with machines, we measured it by watching the changing relationship between Earth, the Moon, and the Sun, marking the change of the seasons.
June 30 — Asteroid Day / Tunguska Anniversary
Asteroids remind us that our solar system is still active and changing. By studying these ancient objects, we learn not only about where we came from, but how knowledge and cooperation can help protect our future.
Asteroid Day was founded in 2014 to increase public understanding of:
- finding near-Earth asteroids,
- tracking their orbits,
- planetary defense,
- space missions that study asteroids.
It was co-founded by people including:
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Brian May (Astrophycisist and Lead guitarist of the Band Queen, co-founder of STARMUS)
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Rusty Schweickart (Astronaut and Lunar Module Pilot of Apollo 9)
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Grigorij Richters (German filmmaker, producer, and activist)
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Danica Remy (Technology executive, non-profit leader)
*The United Nations later recognized June 30 as International Asteroid Day.
Closing Reflection — A Universe in Motion
The universe is not something separate from us. We are living on a planet moving around a star, inside a galaxy filled with hundreds of billions of other stars.
Every night, the sky offers us perspective. Every observation connects us with generations who looked up before us. And every person who looks through a telescope begins their own journey of discovery.
