With no fuel or engines, tiny explorers will surf sun-warmed air alone to explore high in the skies of Earth and Mars ...

A repurposed Mars rover tool could unlock the simplest test yet for detecting alien life, offering a faster, cheaper path to discovery.

Scientists have devised tiny featherweight disks that could float on sunlight in Earth’s mesosphere or the thin air of Mars, theoretically even while carrying payloads. Extending about 50 to 85 ...

A former campus of healing in south St. Louis City has decayed into an outlaw’s hideaway. Homeowners next to the former St.

Fox High School Student Kaylie Brunner talks first day back to school. Nearly 12,000 students are starting or returning to ...