MolecularWebXR is our new website for education, science communication and scientific peer discussion in chemistry and biology built on WebXR. It democratizes multi-user, inclusive virtual reality (VR) experiences that are deeply immersive for users wearing high-end headsets, yet allow participation by users with consumer devices such as smartphones, possibly inserted into cardboard goggles for immersivity, or even computers or tablets. With no installs as it is all web-served, MolecularWebXR enables multiple users to simultaneously explore, communicate and discuss chemistry and biology concepts in immersive 3D environments, manipulating objects with their bare hands, either present in the same real space or scattered throughout the globe thanks to built-in audio features. A series of preset rooms cover educational material on chemistry and structural biology, and an empty room can be populated with material prepared ad hoc using moleculARweb's VMD-based PDB2AR tool. We verified ease of use and versatility by users aged 12-80 in entirely virtual sessions or mixed real-virtual sessions at science outreach events, student instruction, scientific collaborations, and conference lectures. MolecularWebXR is available for free use without registration at https://molecularwebxr.org, and a blog post version of this preprint with embedded videos is available at https://go.epfl.ch/molecularwebxr-blog-post.

翻译：MolecularWebXR是我们基于WebXR构建的新网站，用于化学与生物学领域的教育、科学传播及学术同行讨论。它普及了多用户、包容性虚拟现实（VR）体验——高端头显用户可获得深度沉浸感，同时允许使用智能手机等消费级设备的用户参与（可将手机插入纸板眼镜提升沉浸度），甚至支持计算机或平板电脑访问。由于所有内容均通过网络服务器提供且无需安装，MolecularWebXR使多名用户能够通过裸手操作对象，在沉浸式3D环境中同时探索、交流并讨论化学与生物学概念——无论他们是处于同一真实空间，还是借助内置音频功能分散在全球各地。一系列预设场景涵盖化学与结构生物学教育材料，而空场景可通过使用moleculARweb基于VMD的PDB2AR工具特别制备的材料进行填充。我们通过面向12-80岁用户的纯虚拟及虚实混合科学传播活动、学生指导、科研合作及会议讲座验证了其易用性与多功能性。MolecularWebXR可通过https://molecularwebxr.org免费使用（无需注册），附带嵌入式视频的预印本博客版可访问：https://go.epfl.ch/molecularwebxr-blog-post。