Space

Tumbleweed Raises €6.9M to Build its Own Reentry Vehicle

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 03/11/2026, 13:50:25 UTC.

Briefings

Vienna-based startup Tumbleweed closed a €6.9M seed round to fund the development of Oasis Beta, an in-orbit research vehicle designed for reentry. The company previously launched Oasis Alpha on a SpaceX rideshare in July 2026, demonstrating microgravity capabilities for four customers. CEO Julian Rothenbuchner stated the investment aims to optimize the path to space and back for future customers, with missions scheduled to begin in 2028. The round also funds at least three missions in 2027, including a late-integration payload demonstration. The company is evaluating partnerships with other reentry providers to own more of the value chain.

Key points

• Tumbleweed closed a €6.9M seed round to fund the development of Oasis Beta, an in-orbit research vehicle capable of reentering Earth's atmosphere.
• The company previously launched Oasis Alpha on a SpaceX rideshare in July 2026, demonstrating microgravity capabilities for four customers.

Context

Vienna-based startup Tumbleweed is attempting to build an anti-gravity machine that looks like a reentry vehicle. The company sent its first sat, Oasis Alpha, to orbit on SpaceX's Transporter-17 rideshare in July 2026, demonstrating microgravity research payloads for four customers. Since then, Tumbleweed has seen an influx of demand from customers looking to access microgravity without building their own satellite, with missions set to begin in 2028.

Limitations

Evidence is limited to the company's announcement of the seed round and its previous in-orbit mission. Specific details about the reentry vehicle's propulsion technology, exact mission trajectories, or long-term operational plans remain unconfirmed. The source does not provide data on the vehicle's performance history, failure rates, or regulatory approvals beyond the initial mission.

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