365 Whys?
365 Whys About Space, Volume 3 book cover
365 Whys About Space · Volume 3

Astronauts, Rockets & the Future of Space Travel

The humans-in-space volume. How rockets actually work, what astronauts eat, why you can't cry properly up there, and whether people will really live on Mars. 365 questions about the boldest thing our species does.

Every question gets the full treatment: a straight answer, a quick fact, a “wait, what?!” twist that makes kids look up from the page, and one line on why it matters. No hand-waving about how rockets “just work” — the real reason, told the way you’d tell a smart kid who actually asked.

Ages7–12 · reading level around 4th to 6th grade
Format8.5×11 paperback, fully illustrated
Questions365, each with the full treatment
SeriesVolume 3 of 3 · stands alone fine
ISBN9781972535097
Buy on Amazon

Sample page

Try one.

Every Why in the book gets this exact treatment. Here is № 33.

Why № 33 · 365 Whys About Space, Vol. 3

Why can't astronauts cry in space?

The answer They can make tears. The tears just can't fall. With no gravity to pull them down, they ball up and cling around the eyes until someone wipes them away.
Quick fact Floating tears sting more than normal ones, because they sit on the eye instead of draining away.
Wait, what?! Without gravity squishing their spines, astronauts come home up to two inches taller than they left.
Why it matters Almost everything your body does quietly assumes gravity. Space is the only place we get to find out what happens without it.

Also curious? How do astronauts sleep without floating away? · What does space smell like?

Rest of the series

Keep the streak going.