Monarch butterflies are in trouble due in part to a decline of milkweed plants, on which their young feed.
A military spokesman said a group of Russian soldiers had crossed the border in armoured infantry carriers and a truck and entered the town of Amvrosiyivka
New research suggests that pollution in cities produces environments that mimic earth's future climate.
With expected gains in the midterms, another government shutdown is the last thing rank and file Republicans want
The app has increased in value over 400 percent in the past year
Einstein’s theory of relativity only makes sense if our world is a hologram, scientists say.