Scientists say Nasa's Kepler space telescope has found distant planets that may be the most Earth-like it has yet discovered.

The Brazilian government is accused of ignoring a legal deadline to remove settlers from the territory of a highly endangered tribe.

Some 60% to 80% of fossil fuel reserves owned by listed firms could be classed as unburnable if politicians stick to CO2 emission limits, a report warns.

Dinosaur fossils unearthed in Madagascar are of a new species that roamed the Earth around 90 million years ago, say US researchers.

Mice, geckos and gerbils are just some of the many species going into orbit above the Earth on a 30-day Russian scientific mission.

Europe's Herschel space telescope has imaged one of the most popular subjects in the sky - the Horsehead Nebula - and its environs.