Scientists sequence DNA from tardigrades, often called 'water bears,' to find that one-sixth of the animals' genetic material comes from other species. And about 90 percent of that foreign DNA came from bacteria.
Researchers find that army ants appear to stop extending the length of their living bridges when the costs outweigh the benefits.
Jeff Bezos's spaceflight company has successfully landed their reusable rocket after a test flight past the boundary of space Monday.
When streams of dark matter interact with planets like Earth, dense hairlike filaments form, according to new research.
Phobos, the larger of Mars' two moons, is likely to break apart. The debris from the moon's demise could form a ring around the Red Planet, say researchers.