The choanoflagellate Choanoeca flexa forms motile and contractile cell monolayers purely clonally, purely aggregatively or through a combination of both processes depending on environmental conditions.
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As part of the new plan, the redesigned Artemis 3 mission will give NASA the chance to test at least one lander in the relative safety of low Earth orbit. NASA will attempt to return humans to the Moon during Artemis 4 sometime in 2028, with the potential for another mission as early as later that same year. Per CBS News, the decision comes after NASA's Aerospace Safety Advisory Plan said the agency's existing mission plan was too risky.