Bádminton los sábados

Ce samedi 18.04.2025 - Brussels Event **Single Party 80s 90s 2000s \| Coeur A Coeur x Yéti Summer Bar \(Grande soirée pour célibataires XXL\)** NO MATTER THE WEATER :) 100% covered (le chalet xxl) ☆+BON CADEAU BODY TRAINING > UNE SCEANCE D'ESSAI OFFERTE AUX 100 PREMIERS PARTICIPANTS 🤍 + LES FAMEUX SLOWS 📅 Date: Samedi 18 AVRIL 2026 ⏰ Heure: À partir de 21h 📍 Lieu: Yéti Summer Bar, 11 Drève Olympique, Anderlecht, Belgium Music by the LEGEND JONATHAN LOYS *** 🎉 SAMEDI 18.04 - La plus GRANDE SOIRÉE pour célibataires au Yéti Winter Bar et son superbe Chalet! Facebook >> [https://fb.me/e/4eUmArGLK](https://fb.me/e/4eUmArGLK) Vente flash pour la soirée : [https://www.partyfinder.com/en/event/15748](https://www.partyfinder.com/en/event/15748) *** New New New \> Nous proposons une activité Speed\-Dating en AVANT\-SOIREE \( pour particper au Speed\-Dating insciption obligatoire via notre billeterie et rendez\-vous à 19:00\! Inscription pour le speed dating : https://www.partyfinder.com/en/event/15747 *** Un rendez-vous incontournable. Rejoignez-nous pour une soirée haute en couleurs dans le cadre magnifique du Yéti Summer Bar. *** 🌺 Coeur à Coeur - La plus Grande soirée pour célibataires Viens participer à la plus grande soirée de rencontre organisée en Belgique au Yéti Summerr Bar. *** Ce qui t’attend : • La plus grosse fête pour célibataires de Belgique • 6 heures de DJ Set avec LES PLUS GRANDS TUBES DISCO + Golden 80’s, 90’s et 00’s • Des espaces dédiés pour les échanges et les discussions (Winter Terrasse) • Parking gratuit (200 places) • Tenue correcte exigée *** 📲 Rejoignez-nous sur : • Site internet + inscription Newsletter : coeuracoeur.be • Instagram : @coeuracoeur.be *** Infos supplémentaires : • Date et heure : le samedi 18 avril à partir de 21h • Durée : 6 heures • Lieu : Yéti Summer Bar. 11 Drève Olympique, Anderlecht, Belgium • Accessibilité : accessible aux personnes à mobilité réduite *** Les amis de vos amis sont nos amis, merci d'inviter vos amis à l'event et de rejoindre notre liste de diffusion mail pour être systématiquement mis au courant de nos prochaines soirées sur www.coeuracoeur.be *** Que la fête continue et plus si affinité 💃🕺 *** Nous Vous Invitons à marquer votre présence via Facebook et à inviter Vos nombreux Amis ! 🌐 RSVP on Facebook : https://fb.me/e/4eUmArGLK *** 🎶 Le thermomètre va grimper... En effet, la soirée s’annonce ultra fun avec Coeur à Coeur ! Au programme, un DJ set de 6 heures dans une boîte de nuit où les nombreux participants sont attendus pour venir se déhancher toute la nuit. Tu l’as bien compris, si tu es célibataire et que tu n’as pas froid aux yeux, c’est à la Coeur à Coeur que tu dois te rendre. Rendez-vous à Anderlecht ! *** Yéti Summer Bar, 11 Drève Olympique, Anderlecht, Belgium

THIS SATURDAY\, 18 APRIL 2026 \| BXL MAIN EVENT \| 10:00 PM – 4:00 AM INTERNATIONAL PARTY – Madame Moustache \| 80’s 90’s 2000’s – Powered by Just A Night Facebook: [https://fb.me/e/6CEtdpmQO](https://fb.me/e/6CEtdpmQO) Skip the Line & Guarantee Pass: [https://www.partyfinder.com/en/event/15708](https://www.partyfinder.com/en/event/15708) Or tickets at the door *** INTERNATIONAL PARTY BACK TO THE 80s 90s 2000s MADAME MOUSTACHE – Powered by Just A Night SPECIAL GUEST DJ: TBA XXL BRUSSELS PARTY \| INTERNATIONAL VIBES \| COSMOPOLITAN ENERGY *** Just A Night is landing at Madame Moustache for an exceptional edition! A must-attend roaming concept in Brussels, Just A Night has been bringing together nightlife lovers for over 10 years: Artists, DJs, models, party people, globe-trotters, expats, and cool crowds from all backgrounds! This time, get ready to dance to the best old-school hits from the 80s to the 2000s — remixed like never before. Retro vibes & atmosphere. A musical journey to experience with friends, right in the heart of the city’s nightlife. AT MADAME MOUSTACHE, WE’RE TURNING UP THE HEAT 😉 *** INFO & BOOKINGS info@justanight.net +32 478 58 60 39 (bookings & birthdays) Facebook: [https://fb.me/e/6CEtdpmQO](https://fb.me/e/6CEtdpmQO) Madame Moustache 5-7 Quai au Bois à Brûler, 1000 Brussels

WHERE: Carpe Diem WHAT WE PLAY. We play social interaction games : Dixit, Codenames, Werewolf, Secret Hitler, Exploding Kittens, Bang...They are fun to play with and easy to learn. We gather on Mondays for strategic games, but you are free to play strategic games on Thursdays and Saturdays as well. SCHEDULE. We will gather at 7 PM and have the introduction round at 7:15 PM. If you want to come later, don't hesitate. See the host, who will try to arrange it so you can find a table. You may have to wait for a game to finish to join the next game. WHAT TO BRING. As usual, a good vibe ! we will play the games that people bring. Don't hesitate to mention them in the comments. When the location is in the park, you can also bring snacks and drinks and something to put under your royal buttocks because the lawn is sometimes a bit wet. DRINK AT THE BAR. You are encouraged to order at least one drink during the event and pay for it yourself at the bar. The meetup is Free, but the venues like Us more when they have some business😇 EVENT REGISTRATION. Please register for adequate venue planning and security measures. Don't forget to add it to your calendar, So you don't miss an event you registered for. WHEN THERE IS A WAITING LIST. Please, out of respect for people on the waiting list, don't cancel later than 7 PM the day before so they can plan their evening correctly. If you are on the waiting list, please cancel your attendance if you can no longer come for the same reason. SUGGESTIONS. Don't hesitate to write with comments or suggestions! Take care and see you soon!

**International House Leuven** organizes a coffee morning for those of you who like to chat and meet some friendly (new) faces. It's also a good place to ask questions, get answers and find out about what’s happening in Leuven. Our coffee morning is what you make it. So pop in and out whenever you like, see who is there, and say hi! Other than meeting on Friday mornings every two weeks at the IHL house, for this edition we will meet on a **Saturday every two weeks**, so that those who work during the week have a chance to come! Who's "we"? Well it varies a bit, but this time it will be volunteers from the IH, Zeba and/or Georgi! ​ The practicalities: \- the coffee morning goes for 2 hours\, for the exact time check the event details\. Feel free to pop in and out at any point\, no need to stay the entire time if that doesn't suit your own timing\. \- The location is stated in the event details\. Any changes will be communicated via MeetUp and the WhatsApp group on the day of\.\.\.\. \- ask the event volunteer at the event to be added to the Whatsapp group for future updates \- We will **limit the group size** because the cafe has limited seating, so please register so we know how many people are coming (and please respect your reservation, AKA cancel if you can no longer come :) ) Be aware that we cannot make a group reservation, so we may have to split up between a few tables. Hope to see you at this special coffee morning weekend edition!

What's up Friends! 👋 
Ready for some bouldering fun? Boulder-what? 🤔 It’s climbing (FR: escalade, le bloc) up to 4.5m high without ropes—and in my case, without much hope! 😂✨ It’s a super fun indoor activity, but be warned: it does require a certain level of physical fitness and/or skill. Most importantly, though, it requires awesome company—which we’ve got! 😎
 The Idea: 📍 Meeting Point: For those arriving at 17:00, we’ll meet at the cafeteria (next to the billiards table). Feel free to start earlier or later—just drop me a message or write in the group chat so we can meet up. 💪 Stay & climb as long as you want - venue closes at midnight! 🥤 Recharge: If you’ve had enough climbing for the day (we usually do this after 2 hours of climbing), we may head back to the cafeteria (or to the rooftop if it's sunny🌤️) for snacks, drinks & games. Cafeteria closes at 22:00. Where: 📍Arkose: (Brussels Canal) Rue Willy de Bruyn Straat 52, 1000 Bruxelles, Belgique 🔗 https://arkose.com/

Fees: 🤑Entry fee without shoes: - 18 eur (first-timers 10€ with online promo activated) - reduced rates: students, minors, job seekers, firefighters, military (proof required) 👟 Shoe Rental: 5€ (if you don’t have your own) 🎫 10-session pass: 150€
 Good to Know: ✍️ First-timers need to create an account (takes 5min) - do it in advance and pay online to pay less and avoid wasting time onsite 💦 Hydration is key! Bring a water bottle. 🔐 Lockers available, but bring your own padlock. 🚿 Changing rooms & showers on-site. 👕 Wear comfy sports clothes—it gets intense! 🧴 Only liquid magnesium is allowed (for grip) - in reality most people use powder🤫 👟 Thinking of going regularly? Bouldering shoes are a great investment! (Decathlon: ~45-65€ per pair.)

⚠️ Safety First! Bouldering is fun, but safety comes first! Stay alert, know your limits, and don’t take unnecessary risks. Enjoy responsibly! 💪 
📢 Further details may be shared via the group chat or via DM 💬. Make sure to check your messages 👀 at least on the day before the event to avoid missing critical 🙄 announcements. 🐈‍⬛ The Friends Code:
👉Respect and positive vibes, if not 💥🥊
👉Can’t make it? Cancel or drop a message in the chat - helps running things smoothly! 👉 Don't show up if you are on the waiting list or show up at your own risk. 
See you at the walls folks😉

Fight for influence across the solar system as rival factions struggle for power. Move fleets, trigger events, and forge shifting alliances. A card-driven strategy game full of political tension. [How to Play](https://youtu.be/olW3IH0HZog?si=PR8NzC-j3oQD4m9n) [BGG](https://boardgamegeek.com/boardgame/220792/the-expanse-board-https://tesera.ru/images/items/2362130/TheExpanse-Rules.pdf) Everyone is welcome! No previous experience or game knowledge needed — I’ll explain all the rules before we start. **IMPORTANT:** This game will be held at my place in Ixelles near the Roffiaen tram station. I will message the participants the exact address on the day.

First time comers Please make sure to read the rules and contact the organizer before! Otherwise you will be moved to waiting list. Apologies for inconvenience but we have to do it to avoid no-shows. New and Interested in being part of our group? Join here, https://chat.whatsapp.com/KqdVhyuBhFz1d56lv4WVVi Please Direct Message the Organizer with your level. Approval is required before your first RSVP. Games format. 95% are double games (unless someone needs a break), typically 4 people play together 2 sets and then mix with players from other fields. We play with plastic shuttles - Yonex Mavis 2000 (which are provided). Registration If it's your first time, please send a private message to the host to confirm. No-shows are taken quite seriously because they unbalance the games a lot. Also once you register please keep an eye on you private messages, in case we need to contact you. Players level Having players with much less experience often unbalances the game making it much less interesting for more experienced players. We still try to be welcoming. As a rule of thumb, if you know what a "clear" is, you are welcome to join. Otherwise, feel free to get in touch with me (John) and we can see if we can arrange so you and existing players can have good experience playing. Price and payments The price of participation is EUR 9. Payment is on-site in cash, or via online. Info provided during or shortly after the event in the WhatsApp group. Cancelations and no-shows Switches and cancellations are free of charge if done more than 50 hours before the start of the matches If you cancel within the 50-hour window before the event starts, you will be placed on the wait-list for the next week's event, whether or not a replacement is found. If no replacement is secured, you'll still need to cover your share of the costs. Contact Questions or first-time approval requests? DM the Organizer with your playing level and availability.

Join us for some friendly Badminton games- all levels welcome! IMPORTANT- in order to secure your place you’ll need to both book a spot on Meetup AND pay €8 by Friday morning. This is to make sure we can cancel courts if demand isn’t there, and make sure we’re being fair to people on the waitlist. Refunds will only be possible after Friday AM if another player is definitely able to take your spot Always worth joining our W’app group as well for faster, often better, updates! https://chat.whatsapp.com/IL7Gbs6TmIm0GXyidQxCFS?mode=gi_t

Hello! This is a meet-up to play tennis from 2 pm to 4 pm on Sunday. Meeting is on the courts. The courts are booked under the name Jean-Marc. This event is for intermediate and advanced players and not organised for novice players or beginners. Please make sure to bring the exact sum of 10 € in cash. The event is non-commercial. This sum covers the cost of the courts reserved. The organizer is not there to make money out of you. Ladies are encouraged to join. If anyone wants to drop out, they should do it on Saturday morning, not on Sunday the day of the meetup, another wise it would be too late to find a replacement in time or to cancel a court in time with reimbursement. If you don't do this, you will be asked by the organizer to reimburse your participation fee. If this happens too late then those who have cancelled after Saturday morning will have to cover the extra cost for reserving the courts. In the past meetups, it happened too many times that we were an oneven number and because of that all those present had less fun to play. If you don't show up without giving a written excuse in time, the first future participation will be cancelled and you will be asked to reimburse the participation fee. If it happens too many times you will not be able to participate anymore. In case if we are an uneven number of players, then the last player (except the host of course who has to collect the money) can leave or persuade other players to play with him or her. Of course if the last player leaves, then he or she doesn't have to pay the participation fee. If this player leaves, he or she will be added on a future event by the host or organizer in the participation list if the player is far away in the waiting list. This is the advantage of leaving on a voluntary basis;-). We operate on the principle of Fair Play as we do not have umpires or referees. Any disputes or disagreements over line calls or scores should be resolved immediately on the court and, when agreement is not possible, the point or game should be replayed. To be able to replay the game, 3 players need to agree on that without manipulation of the one who disputes an entire game, anotherwise injustice could occur where in the end possibly the biggest cheater could win... This situation applies also, if the host or the organizer is involved. When one of the players still doesn't accept this compromise, then it should be reported (meetup message by preference) to the organizer or host of the meetup event. One of the consequences could be that the first upcoming event could be cancelled by the organizer for the player who doesn't comply with the compromise to play the point or the game again. If the same player does that again for a second time, then the person will see 4 of his next tennis meetups cancelled. If this happens a third time with the same player, then the player in question will be banned from all future tennis meetups with an exclusion as a final result. Whenever there is a big problem, it should be reported as well to the organizer of the group so he can, if necessary, take actions to improve the situation for all the players. Please also note that if you are the first on the waiting list, you will automatically be moved up to the attendance list if someone pulls out. So if you are on the waiting list and see that you cannot attend, please also change your status to not going. If you would like to organize a meet up either this week or next week please get in touch with me, my name is Jean-Marc. It will depend on your initiatives to create more tennis meetups per week.

Hey you! Are you thinking about starting your salsa dancing journey? Join one of our 2 free salsa initiations for complete beginners! Oscar & Joke will teach you some basic steps to start immediately! Join us for this short social moment and start your salsa dancing journey with us and the Brussels salsa community! Due to limited space, we ask you to register for the free initiations [HERE](https://docs.google.com/forms/d/e/1FAIpQLSfbi-2ff71bvKG1asqvEI3SBgqJ5SHCUsEARyTKWVrmFBve_Q/viewform?usp=sharing&ouid=110460937534040605463) **Tuesday 14th of April 2026 from 19:00 > 20:15** @ at GC De Maalbeek, rue Général Leman 118, Etterbeek **Sunday 19th of April 2026 from 13:45 > 15:00** @ at Maison de la Solidarité - Salle Zap, Rue du viaduc 133a, 1050 Ixelles The week after we start a new season of salsa classes for which you are very welcome to join (see upcoming events here on Meetup). More info about us you can find on our website studionysalsa.be PM us if you have any questions! Note: it's 2 times the same initiation for beginners in order to give everyone a chance to join according to their availability. Looking forward to meeting you! Oscar & Joke

*🎟️ Ticket required to participate (QR code check-in)* Once a year… and only for a short moment… **Hallerbos turns into a surreal purple-blue carpet of wild flowers.** This is **one of the most beautiful natural sights in Belgium** — and we’re going to experience it together. 👉 Expect: nature, good vibes, great people, and a relaxed social atmosphere ⚠️ **This event happens only a few weeks per year and spots always fill fast** ## 🥾 The Plan - **12:30** – Optional brunch at *Time Off (Midi Station)* - **14:14** – Train from Brussels Midi - **14:24** – Arrival Halle + shuttle to Hallerbos - **Walk:** 7–9 km (easy & social pace) - **Duration:** ~2.5–3 hours (with photo & chill stops 📸) - Optional drink after 🍻 👉 You can also join directly at Hallerbos (details in WhatsApp group) ## 🌍 Who Joins? Our events bring together: - Expats 🌍 - Locals 🇧🇪 - Solo joiners (most people come alone!) 👉 **You don’t need to know anyone — you’ll meet people naturally** ## 💸 Participation **Not a member yet?** €10 Or join Sunday Vacations and save: - Explorer (starting at €5/year) → event price: €5 - Voyager (starting at €50/year) → Free - Ambassador (starting at €150/year) → Free 👉 Join here: [https://www.sundayvacations.com/membership](https://www.sundayvacations.com/membership) ## ⚠️ Important - Stay on paths (bluebells are fragile 🌸) - Shoes may get muddy - Dress for Belgian weather 😄 ## 📲 WhatsApp Group Created before the event for: - live updates - exact meeting points - smooth coordination ## 🔥 Why You Should Join Because this is not just a walk. It’s one of those **“wow, I’m glad I came” moments** you remember… and the kind of people you meet make it even better. 👉 **Spots are limited — RSVP early to secure your place** **Sunday Vacations** Living the moment ✨

**✅ Bachata Mondays with Todd Smith!** **👉 Beginner Bachata Class** **$15 In Advance / $20 At the Door** . 7:00 pm – 7:15 pm … Registration 7:15 pm – 8:15 pm … Beginner Class . **👉 Intermediate Bachata Class** **= $15 In Advance / $20 At the Door** . 8:15 pm – 8:30 pm Registration 8:30 pm – 9:30 pm Intermediate Class . **👉 If You Take Both Bachata Classes** **= $25 In Advance / $35 At the Door** . **👉 Buy Advance Tickets Now at:** . https://columbussalsadancing.com/bachata-mondays-dance-class-tickets/

💥 𝐋𝐢𝐧𝐜𝐨𝐥𝐧 𝐒𝐭𝐫𝐞𝐞𝐭 𝐒𝐚𝐥𝐬𝐚 💥 𝐅𝐞𝐚𝐭𝐮𝐫𝐢𝐧𝐠: 💥 𝐋𝐢𝐯𝐞 𝐒𝐚𝐥𝐬𝐚 𝐁𝐚𝐧𝐝: 𝐀𝐥 𝐒𝐨𝐧 𝐃𝐞𝐥 𝐈𝐲𝐚! . 💥 𝐒𝐚𝐭𝐮𝐫𝐝𝐚𝐲, 𝐀𝐩𝐫𝐢𝐥 𝟏𝟖 💥 𝟖 𝐩𝐦 – 𝟏 𝐚𝐦 . 🟣 Salsa, Bachata, and Merengue 🟣 Dancing All Night Long! . 👉 𝐁𝐮𝐲 𝐄𝐚𝐫𝐥𝐲 𝐁𝐢𝐫𝐝 𝐓𝐢𝐜𝐤𝐞𝐭𝐬 𝐍𝐎𝐖 𝐚𝐭: [https://columbussalsadancing.com/live-salsa-band-tickets-early/](https://columbussalsadancing.com/live-salsa-band-tickets-early/) . Lincoln Street Salsa 1717 Brice Rd Reynoldsburg, Ohio 43068 . 🟣 𝐑𝐞𝐠𝐢𝐬𝐭𝐫𝐚𝐭𝐢𝐨𝐧 8:00 pm – 8:30 pm . 🟣 𝐁𝐞𝐠𝐢𝐧𝐧𝐞𝐫 𝐃𝐚𝐧𝐜𝐞 𝐋𝐞𝐬𝐬𝐨𝐧! 8:30 pm – 9:30 pm . 🟣 𝐎𝐩𝐞𝐧 𝐃𝐚𝐧𝐜𝐞 𝐏𝐚𝐫𝐭𝐲 𝐖𝐢𝐭𝐡 𝐋𝐢𝐯𝐞 𝐒𝐚𝐥𝐬𝐚 𝐁𝐚𝐧𝐝! 9:30 pm – 1:00 am . ✅ Cover Includes Dance Lesson and/or Party! . 👉 𝐁𝐮𝐲 𝐄𝐚𝐫𝐥𝐲 𝐁𝐢𝐫𝐝 𝐓𝐢𝐜𝐤𝐞𝐭𝐬 𝐍𝐎𝐖 𝐚𝐭: [https://columbussalsadancing.com/live-salsa-band-tickets-early/](https://columbussalsadancing.com/live-salsa-band-tickets-early/) . 👉 $𝟐𝟓 𝐄𝐚𝐫𝐥𝐲 𝐁𝐢𝐫𝐝 𝐓𝐢𝐜𝐤𝐞𝐭𝐬 (𝐄𝐧𝐝𝐬 𝟒/𝟒 @ 𝟓 𝐩𝐦!) . 👉 $𝟑𝟎 𝐀𝐭 𝐭𝐡𝐞 𝐃𝐨𝐨𝐫 . ✅ 𝐍𝐨 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 𝐍𝐞𝐜𝐞𝐬𝐬𝐚𝐫𝐲! ✅ 𝐍𝐨 𝐏𝐚𝐫𝐭𝐧𝐞𝐫 𝐑𝐞𝐪𝐮𝐢𝐫𝐞𝐝! ✅ Always Other People to Dance With! ✅ Singles, Couples, Beginners, and Pros Welcome! . ✅ BYOB ✅ 18+ . ✅ 𝐐𝐮𝐞𝐬𝐭𝐢𝐨𝐧𝐬? 𝐕𝐢𝐬𝐢𝐭: LincolnStreetSalsa.com 𝐎𝐫 𝐓𝐞𝐱𝐭 𝐓𝐨𝐝𝐝: 𝟔𝟏𝟒-𝟕𝟕𝟒-𝟖𝟏𝟒𝟔 . 👉 𝐁𝐮𝐲 𝐄𝐚𝐫𝐥𝐲 𝐁𝐢𝐫𝐝 𝐓𝐢𝐜𝐤𝐞𝐭𝐬 𝐍𝐎𝐖 𝐚𝐭: [https://columbussalsadancing.com/live-salsa-band-tickets-early/](https://columbussalsadancing.com/live-salsa-band-tickets-early/) .

**Our May novel is: *The Quiet Librarian* by Allen Eskens** **This month’s book is set in the 20th century and mixes historical fiction with suspense and thriller elements. It also centers on women’s stories and relationships. The novel is 368 pages in print or 8 hours and 12 minutes on audiobook.** Hana Babic is a quiet, middle-aged librarian in Minnesota who wants nothing more than to be left alone. But when a detective arrives with the news that her best friend has been murdered, Hana knows that something evil has come for her, a dark remnant of the past she and her friend had shared. Thirty years before, Hana was someone else: Nura Divjak, a teenager growing up in the mountains of war-torn Bosnia—until Serbian soldiers arrived to slaughter her entire family before her eyes. The events of that day thrust Nura into the war, leading her to join a band of militia fighters, where she became not only a fierce warrior but a legend—the deadly Night Mora. But a shattering final act forced Nura to flee to the United States with a bounty on her head\*\*.\*\*

**✅ Bachata Mondays with Todd Smith!** **👉 Beginner Bachata Class** **$15 In Advance / $20 At the Door** 7:00 pm – 7:15 pm … Registration 7:15 pm – 8:15 pm … Beginner Class **👉 Intermediate Bachata Class** **= $15 In Advance / $20 At the Door** 8:15 pm – 8:30 pm Registration 8:30 pm – 9:30 pm Intermediate Class **👉 If You Take Both Bachata Classes** **= $25 In Advance / $35 At the Door** **👉 Buy Advance Tickets Now at:** https://columbussalsadancing.com/bachata-mondays-dance-class-tickets/

Salsamante Dance Academy will be at Swerve Every Tuesday Night to share the Rhythm & Energy of Bachata & Salsa. These are Beginner Level lessons to get you comfortable and understand the two dances. Spread the Good News to all. Swerve Dance & Fitness Complex 640 Lakeview Plaza Blvd A, Worthington, OH 43085 Bachata 7pm-8pm Salsa 8pm-9pm $15 - One Lesson $20 - Both Lessons