UPDATED | NOVEMBER 3, 2022

A Quick Guide to Understanding Orbital Debris Reentry Predictions

Wondering if you’re in a debris path? Here’s what all those blue and yellow lines mean.

A Space Debris Expert Weighs in on the Massive Chinese Rocket Body Falling Uncontrollably to Earth

The International Space Station Just Jettisoned the Largest Piece of Space Junk Ever. We Asked a Space Debris Expert…

How We’ll Access the Water on Mars

A scientist explains why finding ice on the Red Planet is only part…

A New Thruster Propelling Small Satellites Forward

Tackling the challenge of small satellite…

Emerging, In-Space Propulsion Technologies

Commercial Technologies and New Programs

How to Build a Lunar Habitat

The Moon is a hostile environment — extreme temperatures, low gravity…

Your Chinese Rocket Reentry Questions Answered

The responses to our updates about Long March 5B have…

Earth Day: Eight Ways Scientists Use Space to Protect Our Planet

From small satellites to the…