The International Space Station (ISS) is a multi-nation construction project that is the largest single structure humans ever ...

In the first months of 2026, several chunks of spent rocket hardware tumbled back into the atmosphere weeks earlier than ...

In the event of a conflict, the first thing our adversaries will do is deny communication between spacecraft and the ...

Editor's note: This is the first of three feature articles Ars is publishing to explore the financial, technical, and competitive dimensions of orbital data centers. Although the idea of putting data ...

Blue Origin and Sierra Space today announced plans for Orbital Reef, a commercially developed, owned, and operated space station to be built in low Earth orbit. The station will open the next chapter ...

Cowboy Space is developing a vertically integrated orbital AI infrastructure platform combining rockets, solar power, and ...

The Space Force's Space Systems Command (SSC) and the service's SpaceWERX innovation arm are to launch an In-Domain Orbital ...

The Louisville space company’s valuation has jumped to an impressive $5.3 billion after securing $290 million in its second Series B funding round. Reading time 2 minutes Sierra Space secured some ...

Ben Nowack is the cofounder and CEO of Reflect Orbital, and says there are plenty of applications for redirected sunlight, especially for use at night.

Elon Musk’s vision of orbital data centers sounds quite out there, but perhaps it’s not as outlandish as it sounds, especially as the corporate space race looks to heat up. Undoubtedly, time will tell ...

The Orbital Reef team, led by partners Sierra Space and Blue Origin, has successfully completed its System Definition Review (SDR) with NASA. The SDR is an important program milestone to establish the ...