Spit

Watch Perseverance Mars rover spit out a stuck rock after choking on sample

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NASA’s Perseverance rover managed to spit out pieces of rock that had been blocking its Mars-sampling gear since late December.  Although the un-choking procedure hadn’t been previously tested, the engineers on the Mars mission found it was rather “straightforward,” the team said in an earlier blog post. It involved pointing the drill containing a clogged … Read more

Spit take: Even young infants know we only swap saliva with the ones we love | Science

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If you love someone, you’re probably willing to share spit with them. Whether it’s splitting an ice cream cone with your child or kissing your partner, we don’t mind trading a few germs with the people we hold dear. A new study reveals even 8-month-old children get the gist. When they see puppets or cartoon … Read more