Space junk returning to the Earth is introducing metal pollution to the pristine upper atmosphere as it burns up on re-entry, a new study has found. Published today in the journal Communications Earth ...

A peer-reviewed study modeling Mars transit times for chemical propulsion rockets found that even optimized Starship-class trajectories would still require roughly three months to reach the Red Planet ...

Here’s what you’ll learn when you read this story: While chemical rockets penned the opening pages of the story of human spaceflight, countries around the world are eager to start a new chapter: ...

Most space missions rely on chemical rockets for propulsion. Rockets must carry fuel, which increases spacecraft mass and limits their speed and travel distance. For decades, researchers have explored ...

As SpaceX develops its Starship rocket, engineers made a surprising decision about its fuel. Instead of traditional kerosene or hydrogen, the spacecraft will run on liquid methane. The reason is tied ...

Scientists detect a lithium plume 100km above Earth and trace it to a returning SpaceX Falcon 9 rocket stage, raising new questions about atmospheric pollution.

Robyn Schofield receives funding from the Australian Research Council, Medical Research Future Fund, the Reef Restoration and Adaptation Program and Murujuga Rock Art Monitoring Program. She is an ...