The Cambrian fossil record indicates that most animal phyla had diversified and inhabited the Earth's oceans approximately 518 million years ago. But even though chordates—the group that includes vertebrates like humans—were part of this early animal...
A vein-filled rock is catching the eye of the science team of NASA's Perseverance rover. Nicknamed "Cheyava Falls" by the team, the arrowhead-shaped rock contains fascinating traits that may bear on the question of whether Mars...
This year's Chesapeake Bay "dead zone" was the 10th-smallest observed since 1985, according to findings released Nov. 16 by the Chesapeake Bay Program and...
A "potentially hazardous" asteroid measuring more than a mile long will zoom past Earth this week, the largest asteroid expected to get relatively close...
