June 21st, 2024

Cassini spacecraft reveals global energy imbalance of Saturn

The Cassini spacecraft's observations reveal global energy imbalances on Saturn, with higher Bond albedo and internal heat flux values than previously thought. These imbalances impact planetary evolution and convective storm formation.

Read original articleLink Icon
Cassini spacecraft reveals global energy imbalance of Saturn

The Cassini spacecraft's long-term observations have revealed significant global energy imbalances on Saturn. Analysis of data collected by Cassini shows higher Bond albedo and internal heat flux values than previously estimated for the planet. Saturn's energy budget is not in a steady state and displays notable dynamical imbalances, with a global radiant energy deficit at the top of the atmosphere indicating planetary cooling and seasonal fluctuations. These imbalances contribute to the development of giant convective storms on Saturn. The study highlights the importance of considering seasonal variations in the radiant energy budget of giant planets like Saturn, which can impact planetary evolution, climate behaviors, and the formation of convective storms. The research underscores the significance of long-term observations in understanding the energy budgets of planets and satellites, offering insights into planetary formation and evolution theories.

Related

The Origin of Jupiter's Great Red Spot

The Origin of Jupiter's Great Red Spot

Researchers led by Agustín Sánchez-Lavega investigate Jupiter's Great Red Spot (GRS) origin. Historical data differentiates it from the "Permanent Spot." Simulations suggest GRS formed from zonal jet interactions, evolving in velocity. Published in 2024.

Hydrothermal vents on seafloors of 'ocean worlds' could support life

Hydrothermal vents on seafloors of 'ocean worlds' could support life

A study led by UC Santa Cruz researchers suggests lower-temperature hydrothermal vents on ocean worlds like Europa could support life. Computer simulations show sustained circulation for millions of years, aiding fluid systems' longevity. NASA and NSF funded the study.

Astronomers think they've figured out how and when Jupiter's Red Spot formed

Astronomers think they've figured out how and when Jupiter's Red Spot formed

A study in Geophysical Research Letters reveals Jupiter's Great Red Spot is over 190 years old, not the same as the 1600s "Permanent Spot." Historical records and simulations support evolving characteristics. Future research aims to predict stability.

Why Nothing Can Grow on Mars

Why Nothing Can Grow on Mars

Challenges of terraforming Mars include lack of water, extreme temperatures, radiation, toxic soil, and thin atmosphere. Strategies like space mirrors and engineered microbes are proposed. Despite research, water scarcity remains a major obstacle.

Wave activity on Titan strong enough to erode the coastlines of lakes and seas

Wave activity on Titan strong enough to erode the coastlines of lakes and seas

Researchers from MIT suggest wave activity on Titan, Saturn's moon, could erode coastlines of lakes and seas. Simulations based on Cassini images challenge previous beliefs, emphasizing the need for direct observations. Published in Science Advances, the study sheds light on erosion processes shaping Titan's coastlines.

Link Icon 0 comments