The UK Supreme Court upheld immigration rules Wednesday that require British citizens to have a certain level of income to bring their foreign spouses to Britain.

Astronomers have found at least seven Earth-like planets orbiting the same star 40 light-years away, according to a study published Wednesday in the journal Nature. The findings were also announced at a news conference at NASA Headquarters in Washington.

For those of you still upset over Pluto's demotion, there may be a new ninth planet. Or at least NASA scientists believe it exists -- and they want you to help find it.

Robert Hurt and Tim Pyle have provided the world with stunningly photo-realistic glimpses at what gravitational waves, Earth-like exoplanets, rain storms of molten iron and even the Milky Way from above might look like if we could ever see them for ourselves. They also have the joy of illustrating w...

China responded Wednesday to claims it's been building in the contested waters of the South China Sea, reiterating it has "indisputable sovereign rights over islands" in the sea and their surrounding waters.