The case for a hidden gas giant in the outer solar system continues to go from strength to strength.
A BBC film crew has captured footage of a gigantic green anaconda in the Amazon rainforest in Ecuador.
The discovery of what look like clouds on Pluto has reignited the debate over its dwarf planet status.
Russian scientists have been determining how to use nuclear weapons to protect the Earth from asteroids.
Astronomers in France have managed to narrow down the area in which the new planet could be located.
For the first time scientists have been able to analyze the atmosphere of a 'super-Earth' exoplanet.
Stephen Hawking has suggested that a single black hole could power the whole world's electricity supply.
Scientists have determined that the Earth and moon are made up of material from two separate worlds.
Astronomers have identified what is believed to be the largest solar system ever discovered.
Even if we do find a habitable planet, could its indigenous life forms have already died out long ago ?
Astronomers in the US believe that there could be a large undiscovered planet in our own solar system.
A new body has been set up to help co-ordinate efforts to protect the Earth from apocalyptic asteroids.
British astronaut Tim Peake dialed up an unsuspecting pensioner and said, 'hello, is this planet Earth ?'
Our planet may be at higher risk from a large comet impact than from a conventional rocky asteroid.
A potentially habitable terrestrial planet has been discovered in the relatively nearby Wolf 1061 system.
Researchers have identified what could be two new large planets in the outer reaches of our solar system.
Scientists have finally determined what the dwarf planet's mysterious bright spots actually are.
Phobos, one of the two small moons of Mars, could eventually break apart and encircle the planet.
Astronomers have been able to map the weather conditions of an extrasolar planet for the first time.
A newly identified extrasolar planet is so close by that it should be possible to observe its atmosphere.