Sustainable Space Exploration: Act Now

The Billionaire Space Race and the Emerging Space Economy

A competition unfolded between Richard Branson and Jeff Bezos, with each company vying to be the first to launch a billionaire into space.

On June 7th, Blue Origin revealed that its founder, Jeff Bezos, would participate in the company’s inaugural crewed flight, slated for July 20th. Simultaneously, Parabolic Arc reported Virgin Galactic’s intention to send Richard Branson on a suborbital journey on July 11th. Both endeavors were motivated by a desire to surpass Elon Musk, the third billionaire pursuing space travel.

A Resurgence in Space Exploration

Over fifty years following the historic Apollo 11 moon landing, space exploration is experiencing a significant revival. However, contemporary missions represent more than just the aspirations of wealthy individuals, despite the prominent media attention given to the space initiatives of Musk, Bezos, and Branson.

Currently, a genuine space economy is taking shape. This burgeoning sector is undergoing rapid expansion, unified by substantial investments in innovative technologies and essential infrastructure.

Expansion Plans and Economic Growth

Modern space explorers are formulating ambitious plans, ranging from interstellar travel and the potential colonization of Mars to the deployment of numerous telecommunication, Earth observation, and global navigation satellites. Significant capital is being allocated to these projects.

The global space economy, encompassing satellite services, ground equipment, governmental space budgets, and global navigation satellite systems, is currently valued at approximately $345 billion. In 2019, emerging space companies secured $5.7 billion in funding, exceeding the previous record of $3.5 billion set in 2018.

Future Projections and Concerns

Morgan Stanley projects that the global space industry could generate revenues exceeding $1 trillion by the year 2040.

Essentially, a new 'gold rush' is underway in outer space. Historically, however, our approach to the sustainable development of environments during such rushes has been less than exemplary.

This raises important questions about responsible development and the long-term impact of commercial activities in space.

The Increasing Danger of Catastrophic Space Collisions

A crucial juncture has been reached regarding the assurance of secure and sustainable expansion of commercial ventures in space. Numerous activities now utilize overlapping areas of Earth’s orbit, a resource that is definitively finite. The Department of Defense’s Space Surveillance Network (SSN) currently tracks over 100 million pieces of orbital debris, each measuring approximately 1 mm or larger, as reported by NASA.

However, a significantly greater quantity of debris – too small for tracking, yet still capable of endangering both crewed and uncrewed space missions – populates the near-Earth environment.

Given that both debris and spacecraft travel at speeds exceeding 15,700 mph in low-Earth orbit, even a small object like a 5 mm nut possesses the potential to severely damage a solar panel. NASA data indicates that millimeter-sized orbital debris presents the most significant risk of mission failure for robotic spacecraft operating in low-Earth orbit.

As orbital space becomes increasingly crowded, careless or irresponsible behavior from any single entity could trigger widespread, devastating consequences.

Factors Contributing to Orbital Congestion

The development of reusable rockets, which has substantially reduced the cost of launching payloads into orbit, and the trend towards satellite miniaturization have both contributed to this growing threat of congestion. Currently, nearly 3,000 active satellites orbit Earth, and projections indicate a rapid increase in this number.

MarketWatch forecasts a 230% annual increase in satellite launches by 2025, with approximately 24,000 launches already planned. This figure excludes launches conducted by SpaceX, OneWeb, and Kuiper Systems. Notably, SpaceX’s Starlink constellation alone has requested authorization to deploy 40,000 satellites.

The cost of launching 22 tons to low-Earth orbit has decreased from $200 million to around $60 million due to advancements in reusable rocket technology.

Applications previously requiring a single, expensive, high-performance satellite – costing hundreds of millions of dollars – can now be achieved through constellations of smaller, more affordable ($1 million) satellites, collectively providing global coverage.

The Benefits of Satellite Constellations

Although the performance of an individual smaller satellite may be lower than that of a larger one, data aggregated from multiple satellites can often yield comparable results. Furthermore, the constellation architecture is inherently scalable.

The launch of newer satellite generations allows for exponential performance improvements across the entire infrastructure.

• Key takeaway: The risk of space collisions is escalating due to increased space activity and orbital debris.
• Important point: Reusable rockets and smaller satellites are driving this growth, but also increasing the potential for collisions.
• Critical consideration: Responsible space practices are essential to prevent catastrophic consequences.

Achieving Sustainable Space Development Through Innovation and Governance

The continuation of economic growth within the space sector necessitates the implementation of novel technologies and enhanced governance structures. Supporting both established and emerging clients throughout the entire lifespan of a space mission – from initial requirement analysis to eventual decommissioning – will be crucial.

Certain solutions will demand entirely new space-based infrastructures designed to optimize launch procedures, operational efficiency, and decommissioning processes. For instance, the ION Satellite Carrier developed by D-Orbit functions as a space transportation system. It’s engineered to accommodate multiple satellites, deliver them to their designated orbit, and deploy them individually into precise orbital positions.

This service acts as a complement to the offerings of launch providers, who typically focus on the most strategically important orbits. It allows satellite operators to efficiently manage the final stages of deployment, reducing time and maximizing the operational lifespan of their spacecraft.

This represents an initial stride towards establishing enduring space logistics infrastructures. These infrastructures will be capable of relocating spacecraft between orbits, prolonging the functionality of existing vehicles, conducting repairs, and retrieving defunct satellites and orbital debris.

The Need for International Collaboration

The challenges associated with sustainable expansion within the space economy are too significant to be addressed by any single entity, be it a company or a nation.

Strengthening international cooperation and establishing a clear framework of rules requires a new approach to space governance. This model should be founded on consensus among nations and the adoption of standardized practices. While the technology for capturing space debris is currently available, legal obstacles remain.

Specifically, there are legal complexities surrounding an operator, based in one country, approaching, capturing, and removing a space object originally launched by another country. The creation of global regulations to govern such operations is a vital step. It will unlock new markets and foster business opportunities.

In 2019, the Space Safety Coalition (SSC) was formed by forty-eight organizations, including D-Orbit, alongside government and industry representatives. The SSC is dedicated to actively promoting best practices for the long-term sustainability of space activities.

The SSC has created guidelines for preventing collisions during launch and in orbit, minimizing risks to people from spacecraft reentry, and reducing interference from radio frequency (RFI) events. These are among the best practices designed to ensure the enduring sustainability of space operations.

Urgency and Future Outlook

This industry-driven sustainability initiative must be embraced by all stakeholders in the space sector. The manner in which we develop and regulate the space economy will have profound and lasting consequences.

The time to act is now, as the opportunity to avoid critical errors is diminishing rapidly.

Developing the necessary infrastructure, establishing best practices, and implementing effective governance are essential. These steps will expand humanity’s capacity to operate in space and unlock unprecedented opportunities for future generations.

• Key takeaway: Sustainable space development requires both technological advancements and international cooperation.
• Important consideration: Legal frameworks must evolve to address debris removal and orbital management.