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...
A vast, flat, "featureless" plain on Mars surprised researchers by revealing a much more tumultuous geologic past than expected, according to a study led...
Scientists have discovered a simple and reliable test for signs of past or present life on other planets—"the holy grail of astrobiology."
In the journal Proceedings...
A spectacular new image released today by the European Southern Observatory gives us clues about how planets as massive as Jupiter could form. Using...
