The earth's atmosphere seems to be better at ridding itself of pollutants than had previously been realized.
Astrophysicists have made the first measurements of the atmosphere of a 'super-Earth' planet known as GJ 1214b.
ESA scientists reckon they've explained a mysterious high-altitude layer of sulphur dioxide discovered by Venus Express - and it provides a stark warning for geoengineers suggesting seeding Earth's atmosphere with sulphur droplets to combat climate change.
The Cassini-Huygens mission has identified an oxygen-carbon dioxide atmosphere around Saturn's second-biggest moon, Rhea - the first time a spacecraft has captured an oxygen atmosphere from a world other than Earth.
NASA has given the green light to the development and 2013 launch of the Mars Atmosphere and Volatile Evolution (Maven) mission, which aims to investigate how Mars lost so much of its atmosphere.
In a project reminiscent of Prometheus' theft of fire from the gods, NASA's planning to dive into the sun and capture some of its atmosphere.
Astronomers using NASA's Hubble Space Telescope have confirmed the existence of what they're calling a 'cometary planet' - one that's so close to its star that its heated atmosphere is escaping into space.
The Venus Express spacecraft has completed an 'aerodrag' exercise, using its solar wings to catch and measure faint wisps of atmosphere just 180km above the planet.