Space exploration and travel
Food scientists are developing food for astronauts that stays nutritious and fresh for at least three years.
As summer winds down, savor images from some of the hottest, most magnetic, and awe-inspiring places in the universe.
A new study suggests also looking for "bioessential" elements when searching for alien life.
Just as sailors can look to constellations for their bearings, interplanetary travelers could use pulsars to navigate the universe.
Enjoy a rainbow of pictures this month, featuring Hubble's 28th anniversary image and the richest image of the Milky Way Galaxy yet.
On an April weekend, engineers, designers and astronauts-in-training met to test suits for commercial, suborbital spaceflight.
We explore how powerful your laser needs to be to get noticed on Mars and beyond.
We start the year with a selection of images that look toward distant stars.
Strange alien sights from our solar system and beyond.