Space exploration and travel

When he became the first American to orbit the Earth, John Glenn gave the United States a boost in the space race, making him one of the most famous Americans alive.
Peter Gwynne, Contributor
In this episode of Inside Science Conversations Lindy Elkins-Tanton discusses NASA's Psyche mission and what got her into science.
Chris Gorski, Editor
The results could warrant further research into how enzymes function in space.
Will Sullivan, Staff Writer
Scientists found that squirrels extract nitrogen from their urea to make proteins.
Charles Q. Choi, Contributor
New research looks at how dust storms and a thin atmosphere may play into alternative energy sources on the Red Planet.
Joshua Learn, Contributor
Iodine-based ion propulsion could power small satellites and help solve our space junk problem.
Jessica Orwig, Contributor
Scientists prepare to probe other planets by combining different ways to detect signs of life.
Zack Savitsky, Contributor
Five space travelers had elevated levels of proteins in the blood often seen in people with head trauma and neurodegenerative diseases.
Will Sullivan, Staff Writer
New research suggests gamma rays stunt plant growth.
Karen Kwon, Contributor
Cave microbes on Earth may help guide scientists toward life on Mars.
Nala Rogers, Staff Writer
Sunscreen and calcium supplements aren't enough to protect Mars-bound space travelers from radiation and a lack of gravity in outer space.
Yuen Yiu, Staff Writer
This month in pictures
Abigail Malate, Staff Illustrator