Space Exploration
From countdown to splashdown: the people and machines that take us into orbit and beyond.
Names to look up on a clear night, plus the cosmic objects that astronomers study beyond them.
Hard: all eight directions, including backward.
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This list looks up at the night sky: star patterns you can find without a telescope (Orion, the Big Dipper, Cassiopeia, the Pleiades), individual bright stars (Polaris, Sirius, Betelgeuse), distant objects (Andromeda, nebulas, galaxies), stages in the life of a star (red giant, supernova) and words astronomers use to measure and map the sky (light year, zodiac). It opens on Hard, with several long and unfamiliar names.
The default layout is Hard on a 15×15 grid. Easy, Medium and Hard each use their own checked layout of the same words, and every one can be printed in standard or large print on US Letter or A4.
On a clear evening, try to find three of these with the naked eye: the Big Dipper; Polaris, by following the two "pointer" stars at the end of the Dipper's bowl; and Orion in winter. Indoors, look at a star chart, then draw the Big Dipper and Cassiopeia from memory.
Orion · Big Dipper · Cassiopeia · Polaris · Sirius · Betelgeuse · Andromeda · Pleiades · Supernova · Nebula · Galaxy · Light Year · Red Giant · Zodiac
From countdown to splashdown: the people and machines that take us into orbit and beyond.
Everything on this list can be seen from your backyard over the course of one month.
A head-to-toe tour of organs, bones and the tissues that connect them.