A journey of 1.8 billion miles is about to begin.
All about NASA's #EuropaClipper mission to explore Jupiter's intriguing moon Europa: https://t.co/KX1yfEbiNu
Launch is slated for Monday, Oct. 14. Here's how to watch: https://t.co/x4XNEuvd7U
Why I’m excited about @EuropaClipper
Europa, one of Jupiter’s largest moons, is considered a top candidate for extraterrestrial life in the solar system for several reasons:
1. Subsurface Ocean 🌊
•Liquid water: Beneath its thick icy crust, Europa is believed to harbor a global ocean of liquid water, possibly 100 km deep.
•Tidal heating: Gravitational interactions with Jupiter and neighboring moons (Io, Ganymede) generate internal friction, preventing the ocean from freezing solid.
2. Chemical Ingredients for Life 🧪
•Essential elements: Observations suggest the presence of carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur—elements necessary for life as we know it.
•Oxidants on the surface: Europa’s icy surface contains oxidized compounds, which may interact with materials from the subsurface if mixed through tectonic activity.
3. Potential Energy Sources ⚡
•Tidal heating and hydrothermal vents: Like Earth’s deep-sea hydrothermal vents, energy from Europa’s tidal forces could drive chemical reactions supporting microbial life.
•Surface radiation chemistry: Jupiter’s radiation could create reactive molecules, which may sink into the ocean and provide chemical energy.
4. Thin Ice Shell 🧊
•Cryovolcanism and surface cracks: Europa’s ice shell shows signs of cracking and possible geyser-like plumes, suggesting materials exchange between the ocean and surface. This enhances the chances of detecting life-related molecules.
5. Similarities to Earth’s Extremophile Habitats 🦠
•Analogous environments: Life on Earth thrives in extreme environments, including deep-sea vents, polar ice caps, and subterranean lakes—conditions possibly mirrored in Europa’s ocean.
Future missions, ESA’s JUICE, aim to explore this possibility by studying the moon’s ice shell, ocean, and surface composition.
Possibly before then, European life could send an probe to Earth 🌎 😂
At Ashikaga Flower Park, Japan, you can see 350 blooming wisteria flowers, flowing downward from above, creating a world of enchantment.
This is a beautiful white wisteria.
[📸 Jormungand]