While life on Mars (and Venus) has long been an obsession for those wondering if we're alone, there are other places in our ...

The findings surprised researchers, who used the comet's composition to better understand the environment in which it formed.

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...