The authoritative guide to ensuring science and technology make life on Earth better, not worse.

space

Video: What if we bring back life from Mars?

By Erik English | Biosecurity

Black swans from Mars? The real risks of sending alien samples home

By Valerie Brown | Biosecurity, Disruptive Technologies, Investigative Reporting, Special Topics

The International Space Station

The prospects for United States–China space cooperation are limited

By Aaron Bateman | Disruptive Technologies

How civil society can help monitor and verify nuclear arms control

By Sara Al-Sayed | Disruptive Technologies, Nuclear Weapons

Artist’s conception of Galileo satellite in orbit in 2021. Image courtesy of European Space Agency

In Congress, no one can hear you scream (about space)

By Jared Rosen | Disruptive Technologies, Technology and Security

Watch now—Women in Space: Propelling International Women’s Day into a New Dimension

By Halley Posner | Special Topics

satellite mapping an asteroid

Cis-lunar space and the security dilemma

By Michael Byers, Aaron Boley | Disruptive Technologies

color-enhance image from space

The complicating role of the private sector in space

By Victoria Samson | Disruptive Technologies

view of Earth from space on shortest day of year

Why the final frontier should not become the final battleground

By John Mecklin | Disruptive Technologies

Illustration of a conceptual spacecraft enabled by nuclear thermal propulsion. Credit: NASA

Is using nuclear materials for space travel dangerous, genius, or a little of both?

By Susan D’Agostino | Analysis, Nuclear Energy, Nuclear Risk, Opinion

Houston, are we going to have a problem with space nuclear power?

By Beau Rideout | Nuclear Energy, Nuclear Risk, Opinion, Voices of Tomorrow

NASA kilopower moon render

Do we need highly enriched uranium in space (again)?

By Christopher Fichtlscherer | Nuclear Risk, Opinion