Neptune and Uranus are both thought to have a type of snow made of methane ice that has nucleated around a particles of ...

When I asked readers on social media for suggestions about the coolest things they’ve seen in spaceflight during the last 25 ...

With the exception of Pluto, planets in our solar system are ... A thick atmosphere made mostly of carbon dioxide covers Venus, trapping heat and raising surface temperatures.

Scientists have detected the gases carbon dioxide and hydrogen peroxide on Pluto's largest moon, 'Charon', which they said could help understand how icy bodies originated and evolved in the outer ...

The solar system past Neptune is filled with an uncounted number of small, unusual worlds, from barely visible specks of ice to sugar-coated snowmen to Pluto and its five known satellites.

For decades, evidence like massive outflow channels, ancient river valleys, deltas and lakebeds have suggested Mars had a ...

"One plus one is more than two — having two data points for TRAPPIST-1b now allows us to explore alternative scenarios for its atmosphere, whether it exists or not." ...

Among the businesses in their portfolio, four stood out as having a particularly audacious goal: They were working to strip carbon dioxide from the atmosphere, for a profit. As countries around ...

Using a chemical reaction inspired by rocket fuel ignition, Cornell researchers have engineered a nanoporous carbon with the ...