NASA is building its most powerful rocket ever, a moon rocket, which will cost billions of dollars. But the effort has sparked debate about whether NASA should rely on cheaper, commercial rockers.
On the 50th anniversary of the Apollo landings, more nations than ever are racing to the moon. Their lunar ambitions are driven by advances in technology and a desire to prove themselves.
Fifty years ago, Apollo astronauts collected their first moon rocks. Those samples are still being studied to mine lunar secrets. And scientists are hoping soon to get access to more of them.
Landing a man on the moon captures the public's imagination. But in the decades after the Apollo program, robots have also generated public excitement about space exploration.
A lot of important astronomy is being done thanks to telescopes stationed in the mountains of Chile, where researchers are studying developments in space.
Dozens of technicians and flight controllers piled into the firing room at NASA's Kennedy Space Center to count down the launch of Apollo 11. Among the sea of people, JoAnn Morgan was the only woman.
Chile and Argentina got their turn to host a total solar eclipse. People brought out special glasses, and even protective suits, to watch the celestial event.