Study warns that climate change is rapidly shrinking mountain habitats, threatening two-thirds of butterfly species with extinction by 2070.

Using Hubble's Wide Field Camera 3 instrument, astronomers captured this recent up-close view of the SMC, full of twinkling ...

A century ago, Edwin Hubble revolutionized our understanding of the universe by proving that the Milky Way is just one of many galaxies in an ever-expanding cosmos. This breakthrough led to the ...