Shopping? Check out our latest product comparisons

Atmosphere

The heat shield, attached to the underside of the Orion spacecraft (Photo: NASA)

NASA scientists have installed the largest heat shield ever created for the intention of atmospheric re-entry, onto the crew module of its next generation spacecraft, Orion. The shield, made of the same base material as that which protected Apollo-era astronauts from re-entry conditions over four decades ago, is set to be tested to the extreme later this year as Orion's maiden flight blasts off.  Read More

Artist's Impression of Cassini passing near Titan (Image: NASA/JPL-Caltech)

Data collected from observations recorded by NASA's Cassini mission has been used to propose ways to better understand the atmospheres of exoplanets. By studying the light of sunsets on Saturn’s satellite, Titan, scientists have shown how spectra are subtly altered when passing through a hazy atmosphere, thereby giving a greater insight into interpreting the spectral readings of the atmosphere of these distant worlds.  Read More

MIT professor of geophysics Daniel Rothman stands next to part of the Xiakou formation in ...

A team of researchers from MIT may have found new evidence to shed light on the cause of the most devastating mass extinction in the history of our planet. The event, estimated to have taken place around 252 million years ago, was responsible for the extinction of roughly 90 percent of all life on Earth.  Read More

The dwarf planet Ceres emitting plumes of water vapor from its surface (Photo: ESA)

In mid-2015, the asteroid probe Dawn is scheduled to establish orbit around Ceres, the only dwarf planet in the inner Solar System, as well as the largest asteroid, to begin roughly six months of close-up observation. The level of interest in this mission has significantly increased with the detection by the ESA's Herschel space observatory of plumes of water vapor being exuded from Ceres' surface from a pair of local sources.  Read More

Artist's concept of the MAVEN spacecraft (Image: NASA/Goddard)

On Monday, NASA confirmed the launch date of the Mars Atmosphere and Volatile EvolutioN mission (MAVEN). According to the space agency, MAVEN will launch atop a United Launch Alliance Atlas V 401 rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station, Florida at 1:28 PM EST on November 18 on the first leg of its mission to study the upper atmosphere of the Red Planet.  Read More

Artist's conception of the blue exoplanet HD 189733b, orbiting a star 63 light years dista...

Uncovering any sort of detailed information about an exoplanet presents astronomers with an exceedingly difficult challenge. Despite the hurdles, however, some exoplanets are particularly well situated for such study. Astronomers have previously determined considerable information about the atmosphere and climate of HD 189733b. Now, thanks to Hubble observations made while it passed behind its primary star last December, we also know that this hot Jupiter-like planet is a deep cobalt blue in color, marking the first time that the color of an exoplanet has been measured.  Read More

An aurora appearing in the night sky at the Kjell Henriksen Observatory in Svalbard, Norwa...

Even those of us not lucky enough to have witnessed them in person will likely have marveled at photos of the stunning auroras caused by high energy particles from the Sun colliding with atoms in the Earth’s atmosphere. A team of space-weather researchers has now developed a new camera called NORUSCA II that has produced the first-ever hyperspectral images of the aurora borealis (or northern lights) and may have uncovered a previously unknown atmospheric phenomenon.  Read More

Solar geoengineering could lead to whiter skies, similar to the hazy and white effect ofte...

We’ve already heard reports that placing small, reflective particles into the upper atmosphere could actually improve crop yields, but would also significantly reduce the amount of electricity generated by solar power plants and do little to arrest the acidification of the world’s oceans. Now another potential side effect has been theorized by Californian researchers, who say that solar geoengineering could lead to whiter skies.  Read More

The rockets carry an onboard chemical which, when released, form clouds revealing wind pat...

NASA launched five rockets in five minutes early on Tuesday morning, as part of its ongoing ATREX mission to study the winds of the upper level jet stream. The rockets carry an onboard chemical which, when released, form clouds revealing wind patterns at outer reaches of Earth's atmosphere. And as you can see from the resulting photography, some striking cloud formations occurred.  Read More

Limiting global temperature rise to 2 degrees now looks impossible

Last year at the UN climate change talks in Cancun, it was agreed that cutting emissions sufficiently to limit the world’s temperature increase to 2°C would require a far‑reaching transformation of the global energy system. To limit the world’s temperature increase to 2°C, it was agreed that the long-term concentration of greenhouse gases in the atmosphere would need to be limited to around 450 parts per million of carbon-dioxide (CO2). Sadly, the International Energy Agency has just released figures indicating that energy-related CO2 emissions in 2010 were the highest ever, reaching 30.6 Gigatonnes (Gt). This means that to achieve the 2020 target, where emissions must not be greater than 32 Gt, emissions will need to rise less over the next ten years in total than they did between 2009 and 2010.  Read More

Looking for something? Search our 27,826 articles