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R1D8PY Silverback western lowland gorilla sitting down to eat at Zoo Atlanta in Atlanta, Georgia. (USA)

Could aliens work out if a human or an ape built a tomb? Part 2

Further correspondence on this issue questions if the aliens would even be interested in the archaeology of the tomb

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This week鈥檚 new questions

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FY9W05 International Space Station and astronaut in outer space over the planet Earth. Elements of this image furnished by NASA.

Do cells in an astronaut鈥檚 body multiply at the same rate as on Earth?

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Builder or carpenter working on the roof - silhouette with strong back light; Shutterstock ID 84416038; purchase_order: -; job: -; client: -; other: -

What happens when a hammer hits a nail?

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Food tin cans. Groceries background with dof.; Shutterstock ID 169474457; purchase_order: -; job: -; client: -; other: -

This week鈥檚 new questions

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Astronaut ascends a lunar hill against a backdrop of brilliant cosmic clouds and starry sky. 3d render; Shutterstock ID 2441449595; purchase_order: -; job: -; client: -; other: -

If we could step to the universe鈥檚 furthest point, what would we see?

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Kecskemet, Hungary - August 28, 2021: Leonardo C-27J Spartan. Military transport plane at air base. Air force flight operation. Aviation and aircraft. Air lift. Military industry. Fly and flying.; Shutterstock ID 2126430722; purchase_order: -; job: -; client: -; other: -

Why do large military planes have wings on the top of the fuselage?

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This week鈥檚 new questions

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2JF72KW Digital hands reaching each other, artificial intelligence creativity concept

Will we ever be able to tell if an AI gains consciousness?

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Feeling free. A happy girl skipping through the city center; Shutterstock ID 1287746569; purchase_order: -; job: -; client: -; other: -

Does it take more energy to skip or run to the pizza restaurant?

Our readers tell questioner Jessica, age 5, that it is definitely more efficient to run to the restaurant - and encourage her to keep up the exercise!

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This week鈥檚 new questions

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Why do some flowers close up at night but others stay open?

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How do you check the accuracy of an atomic clock?

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This week鈥檚 new questions

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