People have asked the same question for centuries: are humans alone in the universe? Astrobiologists seek to find the answer. From studying tiny organisms under a microscope to sending remote detection devices to outer space, many hope to find and communicate with life beyond the boundaries of Earth.
What are wormholes? What causes black holes? How are black holes and white holes different? Can people travel in time and across space? Where would you go if you could time travel?
As a girl, Ellen Ochoa didn’t dream of going to space. But then she saw Sally Ride do it. This role model inspired Ochoa to apply at NASA. With hard work and perseverance, Ochoa became the first Latina to go to space. Now Ochoa is working to ensure diversity in the next generation of space explorers.
Are there white holes in space? Who said space and time are the same? Why do wormholes exist? How fast does light travel? What if you could time travel?
Scientists want to know more about comets. They decide to catch one. A spacecraft travels for ten years to reach the comet. What will scientists learn from the mission?
