Bøger i Captured Science History serien

A series of photos taken from space more than 20 years ago revealed thousands of unknown galaxies in a tiny patch of "empty" space. It was taken over the course of 10 days from the Hubble Space Telescope and has prompted astronomers and other scientists to speculate about universe's size, shape, and age.

"Millions of tons of plastic slip into oceans every year. Some floats and travels slowly with the currents, endangering the health of marine animals. The rest is hardly visible but is far more dangerous. Tiny bits of plastic sprinkle the ocean's surface or mix into the sandy seafloor and beaches. It ends up inside birds, fish, and other animals, harming them-and ultimately humans. Experts struggle with fear and hope as they work to stop the flood of plastic threatening living organisms across the globe"--

The long-term damage from an accident at the Chernobyl nuclear power plant more than 30 years ago is still unknown. When explosions ripped through the reactor in rural Ukraine, then part of the Soviet Union, they spewed huge amounts of radioactive material into the atmosphere and caused the worst nuclear disaster in history. About 10,000 people have died or will die because of their exposure to radiation, and experts worry about the children born to parents who were living near the disaster area.

To the untrained eye, Photo 51 was simply a grainy black and white image of dark marks scattered in a rough cross shape. They and others believed that finding the simple structure of the DNA molecule would answer a great mystery, how do organisms live, grow, develop, and survive, generation after generation?

Weighing as much as a small car, a rover named Curiosity rolls quietly around Mars. Curiosity's instruments collect data and its cameras take images of the Mars landscape, including self-portraits, in vivid color and detail.