The invasive zebra mussel loosens its grip on the Hudson River.
Become a citizen scientist and help measure light pollution in your area.
Biologists discover that pandas need old-growth forests to survive.
A NASA X-ray telescope reveals an unusual ring of eight black holes.
Why are climbing vines overgrowing tropical forests in the Americas?
New finds enter the debate over where humans first settled in the Americas.
Watch mind and machine merge.
Decoding the genomes of other species is critical to understanding our own.
A single-celled organism is found to sow and harvest crops of bacteria to sustain its colonies.
Conservation helps, but more must be done to reverse the decline of vertebrate species.