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LEGO 42254 Solar System Planets in Orbit has now appeared on the official LEGO coming-soon page, giving this upcoming Technic release an official LEGO.com listing in the US. The product page currently confirms a price of $99.99, an age recommendation of 10+, and a total of 572 pieces. LEGO also lists the set as Coming soon on January 1, 2027, which points to a release date of January 1, 2027 unless the company changes the schedule later. This matters because the set is no longer floating around as a vague rumor or retail listing: it is now visible on LEGO’s own storefront with official wording and official images. For anyone tracking upcoming 2027 releases, that makes Solar System Planets in Orbit a confirmed new set worth watching.
LEGO has added Solar System Planets in Orbit to the official LEGO coming-soon page, and the full listing is already live on the official LEGO product page. That gives us a reliable official source for the basics instead of having to lean on leaks or third-party placeholders.
Bring the solar system into your home as 8 planets orbit the Sun, turning STEM learning into a hands-on journey through the wonders of space with this learning toy for budding astronomers ages 10 and up.
LEGO 42254: key facts from the official listing
- Set name: Solar System Planets in Orbit
- Set number: 42254
- Theme: Technic
- Age rating: 10+
- Piece count: 572
- US price: $99.99
- Availability: Coming soon on January 1, 2027
Those details already make it clear where the set sits in the range. A mid-priced Technic release with a hands-on educational angle is a little different from the usual car-heavy part of the line, which gives this reveal some extra interest.
What LEGO 42254 is offering
The official description positions the set as a working solar system model, with all 8 planets moving around the Sun through a hand-cranked mechanism. That immediately gives it a stronger educational identity than a standard static display, while still keeping it grounded in Technic-style functions.
At 572 pieces, LEGO 42254 Solar System Planets in Orbit looks substantial without drifting into flagship territory. The 10+ recommendation and the $99.99 price point also suggest LEGO sees this as an accessible STEM-focused build for younger space fans and gift buyers, not just adult collectors.
Release date and availability
On the US store, LEGO currently marks the set as Coming soon on January 1, 2027. Based on that wording, the present launch target is January 1, 2027. As always, LEGO can still adjust release timing later, but this is the official date attached to the listing right now.
For now, the main takeaway is simple: LEGO 42254 Solar System Planets in Orbit has crossed into confirmed territory on LEGO.com, complete with official visuals, pricing, piece count and release timing. That is more than enough for this one to join the tracked list of upcoming new sets.
Bottom line: LEGO 42254 Solar System Planets in Orbit is now officially listed on LEGO.com, and the early details point to an unusual Technic release that mixes mechanical play with a space and science theme. If you track new LEGO set reveals, this is now one to keep on the radar.
