All articles tagged with #atmospheric pressure
A new study suggests that many mini-Neptunes, previously thought to be covered in magma oceans, may actually have solid surfaces due to high atmospheric pressure compressing their rocky cores, challenging previous assumptions about these common exoplanets.
Scientists have developed a new technique to synthesize diamonds in just 15 minutes at normal atmospheric pressure without needing a starter gem. This breakthrough, detailed in a study published in Nature, uses gallium and silicon in a graphite crucible with super-hot carbon-rich methane gas. While the process still requires refinement, it promises to make diamond creation more accessible and eliminate several drawbacks of traditional synthesis methods.
New research suggests that fluctuations in atmospheric pressure on Mars may be responsible for releasing subsurface methane into the planet's atmosphere, posing a challenge for detecting signs of life. Simulations indicate that methane pulses from underground occur just before sunrise in the planet's northern summer season, aligning with previous rover data. This information is crucial for NASA's Curiosity rover's sampling campaign, providing key time windows for data collection to better understand methane fluctuations and potentially uncover the source of methane on Mars.