Rosetta's companion lander made the discovery after sampling and analyzing the comet's atmosphere.
Astronomers have found signs of water vapor on a planet located around 120 light years from Earth.
Beachgoers in Australia have been puzzling over the appearance of peculiar green ball-like objects.
The protective layer in our atmosphere responsible for blocking ultra-violet rays is now on the mend.
The only known moon with a thick atmosphere, Titan has been a prime target of interest for scientists.
Astronomers believe that the famous storm in Jupiter's atmosphere is reducing in size faster than ever.
Researchers have been able to piece together clues about the environment by looking at old paintings.
The Hubble Space Telescope has picked up signs of water in the atmospheres of several distant worlds.
Sasha Shaker used his iPad to record footage of a strange glowing sphere as it danced across the sky.
Astronomers have identified a nearby extrasolar planet with a particularly unusual atmosphere.
NASA's Mars rover has been unable to find any significant amount of methane in Mars' atmosphere.
Scientists are more convinced than ever that they've found evidence of alien life in the stratosphere.
NASA has successfuly launched its LADEE probe which aims to investigate the moon's atmosphere.
Japanese scientists have identified an extrasolar planet that could be a prime candidate for life.
Footage of a strange glowing sphere-shaped object moving across the sky has appeared on YouTube.
Mars could have sustained a habitable oxygen atmosphere more than a billion years before the Earth.
Archaeologists have come across a number of strange spheres below an ancient pyramid in Teotihuacan.
Astronomers have conducted the most detailed examination yet of a Jupiter-sized planet's atmosphere.
Researchers have uncovered bacteria fossils so old that they predate oxygen in the Earth's atmosphere.
Despite irrefutable evidence that the Earth is a sphere there are still some people who claim otherwise.