Astronomy

Spring Equinox: What does it signify, and why does it fall on March 20, 2026?

The spring equinox arrives this year on Friday, March 20, 2026. But what exactly is the spring equinox, and why does it occur precisely at 3:45 p.m. this year? Here's what you need to know.

Supermoon on January 3rd: the first of 2026 promises to be spectacular — here's when and where to see it

On Saturday, January 3, 2026, skywatchers will have the chance to witness the year's first supermoon, known as the Wolf Moon. This celestial display promises to be particularly spectacular, as it will be visible alongside Jupiter and a meteor shower — a rare trio that won’t be seen again until November.

Exceptional solar eclipse visible in France: the must-see date of 2026

An exceptional solar eclipse will take place in France on August 12, 2026, with 99.5% occultation in Biarritz. This rare astronomical phenomenon will offer a near-total spectacle in south-west France, 27 years after the last total eclipse visible in Europe.

Why is this Thursday's supermoon so exceptional, how can you see it in Paris, and at what time?

An exceptional supermoon will light up the skies over Paris and the Île-de-France region on Thursday, December 4, 2025. Larger and brighter than usual, it will be visible from sunset and will not return until 2042.

Geminids: the best days to observe this beautiful meteor shower in December

A beautiful shower of shooting stars will be visible before Christmas in the French sky during the nights of December 4 to 20, 2025, but with a peak around the 13th. Get ready to admire the beauty of this starry sky, the last of the year!

Super Cold Moon: the last big full moon of the year and the highest before 2042 tonight!

In 2025, three Super Moons marked the end of the year. On the evening of Thursday, December 4, 2025, the last one before November 2026 will be visible in the sky, nicknamed the "cold moon," particularly associated with the winter season, with a special feature this year!

Leonids: a meteor shower to watch in the sky this Monday. Discover what makes it special.

Shooting stars are back in our sky with the Leonids! The peak is expected on the night of Monday, November 17, 2025, starting at midnight, with colorful and bright meteors.

Beaver Supermoon: why is this full moon so special and when can you see it?

Nicknamed the Beaver Supermoon, the beautiful full moon on November 5, 2025, promises to be even more beautiful than the others. Find out why and how to observe it at the right time!

Don't miss the Perseids, the most beautiful shooting star shower of the year!

Throughout August, and especially around August 12, 2026, the famous Perseid shower of shooting stars will be visible in the French sky, as it is every year. Let's look up and admire the show!

Êta Aquarides: a shower of shooting stars visible in the sky in May

From April 19 to May 28, 2026, a shower of shooting stars will be visible in the French sky. These are the Êta Aquarides, meteors that pass through our atmosphere every year. Look up to the sky and admire the show!

Lyrides: a shower of shooting stars visible in the sky in April

From April 16 to 26, 2026, a shower of shooting stars will be visible in the French sky. These are the Lyrides, meteors that pass through our atmosphere every year. Look up to the sky and admire the show!

The luminous comet Lemmon visible in the sky to the naked eye, when and how to observe it?

Comet Lemmon will be visible to the naked eye in October! Find out how and when to observe C/2025 A6, the new comet discovered last January and full of surprises.

Harvest Full Moon: the first Super Moon of the year, what time will you see it tonight?

On the night of October 7 to 8, 2025, a Harvest Super Moon will light up the sky, the first of the year, delayed because it often occurs in September. Why is it so nicknamed, and what's the best time to observe it?

Autumn equinox: why does it begin on September 22, 2025, and what does it mean?

This Monday, September 22, 2025 marks the start of the autumnal equinox! But what is the autumnal equinox, and why does it start this year at precisely 8:19pm? We answer.

Black moon this August 23: what is it and how can you enjoy it?

On August 23, 2025, a rare new black moon will plunge the skies over the Île-de-France region into total darkness. This astronomical phenomenon, which only occurs once every 33 months, creates the perfect conditions for observing the stars, planets and Milky Way from Paris and the surrounding region. An exceptional night not to be missed by all starry-sky lovers.

Sorbonne Observatory: admire the stars through a vintage telescope

Fancy a 360° view of Paris... and a tête-à-tête with the stars? The Sorbonne Observatory, perched 40 metres above the Latin Quarter, takes you on a celestial escapade of heritage, science and panorama. Beneath its historic dome, a vintage telescope awaits you to peer into the celestial vault as if it were 1935!

Astronomy: a total lunar eclipse in September - when to watch the Blood Moon?

Three eclipses await us this year, including two total lunar eclipses on March 14 and September 7, 2025! A spectacle that many budding astronomers will be able to observe, as the star takes on a beautiful reddish hue.

Nuits des Etoiles 2025 in Trilport (77): two evenings of sky-watching

In Trilport, Seine-et-Marne, the mysteries of the sky will be revealed to the curious from August 1 to 3, 2025, for the Nuits des Etoiles. Observation and discovery are the order of the day!

Nuits des Etoiles 2025 in Saint-Michel-sur-Orge (91)

On the occasion of Nuits des Étoiles 2025, the Au bout des Étoiles association invites you to observe the sky in Saint-Michel-sur-Orge, on the night of August 1. It's also a great opportunity to meet members of the association and become an astronomer for the evening!

Nuits des Etoiles 2025 at Brétigny-sur-Orge (91)

Head for Parc Bois-Badeau in Brétigny-sur-Orge, on the night of August 2, 2025, for a fabulous night of open-air sky observation, on the occasion of Nuits des Etoiles 2025.