Since Twitter renamed itself to X, the scientific community has begun searching for new spaces to share research, exchange ideas, and interact with colleagues. In this movement, one social network has emerged as the favorite: Bluesky.

In addition to being a nostalgic alternative to the old Twitter, Bluesky is consolidating itself as a fertile environment for academic debates and networking among researchers, offering higher engagement levels than Elon Musk's platform. Recent studies show that scientific articles receive more interactions, more original comments, and deeper discussions within Bluesky.

In this article, we will explore what Bluesky is, why it attracted the scientific community, what its advantages are over X, and how it is shaping a new landscape of academic communication on social networks.

What is Bluesky and why did it grow so fast

Launched in 2023, Bluesky is a microblogging social network that emerged with the goal of offering an experience similar to the old Twitter, but with more control over content and less algorithmic noise.

In its initial phase, it worked by invitation, quickly attracting millions of users. Today, it already has more than 38 million registrations, 25.5 million app downloads, and about 4.1 million daily active users (June 2025).

Political events and controversial changes on Twitter/X, especially after the acquisition by Elon Musk, accelerated the migration to Bluesky. Among those who benefited most from this transition are precisely scientists and researchers.

Why scientists abandoned X

For years, Twitter was dubbed "Science Twitter," an environment where academics, researchers, and science communicators found visibility for articles, study results, and high-level debates. The short format of the posts, combined with the speed of the network, helped in the exchange of information and the formation of global scientific communities.

With the transition to X and management changes, this space began to present obstacles for those seeking qualified content:

• Growth of trolls and bots, hindering serious discussions.

• Reduction in the organic reach of scientific posts, even when relevant.

• A non-transparent algorithm that prioritizes controversies, political debates, and entertainment over science.

The impact was direct: many researchers reported a drop in engagement, a loss of reach for articles, and less capacity for academic networking. In this scenario, Bluesky emerged as a more open and less conflictual alternative, offering scientists an environment where social media technology once again serves as a means of collaboration and knowledge sharing.

This dynamic is reminiscent in some aspects of what has already happened on Quora, a platform that became a global reference by bringing together intellectuals, researchers, and journalists around in-depth questions and answers. Bluesky, by adopting a similar logic of encouraging qualified content, shows signs of being able to become the new space of reference for online scientific and intellectual communication.

A new space for science and networking

Unlike X, Bluesky is being perceived by researchers as a cleaner, more focused, and technically structured network to favor academic dialogue. The feed, according to reports, is dominated by scientists, laboratories, universities, and specialized journals, which strengthens the natural curation of content and increases the relevance of interactions.

Behind this experience is the platform's open architecture (AT Protocol), which enables more precise filters, decentralized moderation, and greater control over algorithms. This technological combination contributes to an environment where discoveries, articles, and debates gain visibility without being smothered by the controversies or noise typical of other networks.

Thus, Bluesky consolidates itself as a space where social technology is used to generate connection through common interests, real-time knowledge sharing, and the formation of global scientific collaboration networks, something increasingly essential in a digital and connected academic ecosystem.

Studies on scientific engagement on the platform

Recent research helps explain why Bluesky has become a fertile ground for scientific communication.

A study by the Technical University of Darmstadt, presented at the Internet Measurement Conference, analyzed the platform from the perspective of architecture and governance. The authors highlight that the open design of the AT Protocol, combined with personalized feeds, community moderation through labels, and accessible APIs, favors the formation of interest niches and technical conversations, while minimizing algorithmic noise. For researchers, this translates into greater predictability of reach, traceability of discussions, and ease of data collection, contrasting with the data restrictions imposed by X/Twitter.

Sociologist Mark Carrigan (University of Manchester) also documents the emergence of cohesive academic communities on Bluesky, comparable to the old "Science Twitter." In the feeds, profiles of researchers, laboratories, and journals predominate, increasing the relevance and originality of interactions. Carrigan warns, however, that even in decentralized ecosystems, academia is not immune to capture by commercial platforms, reinforcing the importance of truly open protocols, such as AT.

Together, this evidence indicates that open architecture + distributed moderation + accessible data tools create the conditions for more consistent, deep, and replicable scientific engagement, exactly what the academic community was looking for after the erosion of the old "Science Twitter."

The role of the academic community

The growth of science on Bluesky did not happen automatically; it was the result of a conscious movement by the academic community itself. Upon realizing the loss of relevance of X/Twitter, researchers decided to act collectively to occupy the new digital space, creating a sustainable and engaged network from the early stages.

In this process, opinion leaders, such as David Shiffman (marine biologist) and Tara C. Smith (epidemiologist), played a central role. They not only migrated but also brought their academic audiences with them, encouraging colleagues, institutions, and laboratories to join the platform. This initial mobilization was decisive to ensure content density, diversity of themes, and quality in interactions.

The result is that Bluesky was not limited to being an alternative to X: it quickly became an environment shaped by the scientific community itself, which found in it the ideal conditions to cultivate constructive dialogues and strengthen global collaborations.

Advantages of Bluesky for scientists

In addition to higher engagement and content originality, researchers highlight specific benefits of the platform:

• Control over the content displayed in the feed, allowing them to follow only what is relevant to their areas of interest.

• Less exposure to trolls, bots, and conspiracy theories, strengthening constructive discussions.

• Space for collaborative and in-depth debates, essential for science and teaching.

• A sense of a cohesive community, united around knowledge sharing.

For many academics, Bluesky does not yet replace Twitter in its golden phase, but it already significantly surpasses the current X in terms of the quality of scientific interactions.

Limitations and challenges of the platform

Despite the advantages, Bluesky still faces obstacles that may limit its global impact:

• A smaller user base than X, which restricts interactions outside the academic sphere.

• A drop in the number of active users since the peak of 2024, requiring strategies to maintain continuous engagement.

• A lean company structure, with only 25 full-time employees, which limits scalability and the development of new features.

In other words, although it is a fertile environment for science, Bluesky still needs to evolve to consolidate itself as a dominant network, maintaining the balance between open technology, an engaged community, and quality content.

The future of scientific communication on social networks

The Bluesky experience shows that science needs structured and reliable digital spaces to thrive. Today, social networks are strategic tools for networking, international collaborations, dissemination of knowledge, and even influencing evidence-based public policies.

With consistent engagement and an active academic community, Bluesky already stands out as a strategic platform for scientific communication, leveraging the open technology of the AT Protocol to ensure relevance, predictability, and content control.

If X represented the peak of "Science Twitter," Bluesky emerges as the "Science Bluesky," offering researchers a more focused, collaborative, and technically robust environment. The trend is for more and more academics to incorporate this platform into their professional routine, consolidating the future of science on social networks.

Therefore, in view of the above, it is concluded that the future of digital science no longer fits in X, and Bluesky shows how open networks can return prominence to research.