A new study has found that Apollo astronauts who reached the Moon die more often from heart disease than astronauts who never made it to space or who only reached low-earth orbit. WSJ's Monika Auger ...

Saturn’s largest moon might not be the barren world it seems. Beneath Titan’s icy crust lies a vast ocean of liquid ...

Private companies have launched nearly 120 civilians to the edge of space, establishing a new frontier in travel. Space tourism is no longer science fiction, but science fact.

Before she kicks off her upcoming world tour, Katy Perry is reaching for the stars. The pop icon will join Lauren Sanchez, ...

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