Apollo 17: The Blue Marble Poster Mars and serve as a daily

and serve as a daily reminder of the infinite possibilities that lie beyond our planet

Eta Carinae: The star at the heart of this nebula is a 100-solar-mass giant

Meaningful Gifts for science educators

from the faintest dwarf galaxy to the subtlest lensing arc

Apollo 17: The Blue Marble Poster Mars and serve as a dailyThe Blue Marble by Apollo 17: The Photograph That Changed How We See Ourselves On December 7, 1972, astronaut Harrison Schmitt captured more than just a photographhe captured a defining moment in human consciousness. The Blue Marble, taken from 29,400 kilometers above Earth's surface aboard Apollo 17, became the most reproduced image in history. This wasn't just another space photograph. It was the first time humanity saw its home as a complete,