Astronomers found an enormous object orbiting at the edge of our solar system

DEEDEE Concept image

It’s no Planet Nine, but the planetary body astronomers have found at the far edge of our solar system is a notable discovery nonetheless. They’ve named it DeeDee, for Distant Dwarf, and although it was first noticed in late 2016, little information about its physical structure was known back then.

Food for microbes found in the plumes of Enceladus

Enceladus scale

In 2005, NASA’s Cassini spacecraft spied jets of water ice and vapor erupting into space from fissures on Enceladus, evidence of a salty ocean beneath the saturnian moon’s placid icy surface. Now, the discovery of hydrogen in the water plumes suggests that although the moon is just 505 kilometers in diameter, it may harbor under its surface the chemicals and processes capable of supporting microbial life.

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