observations

Vivi and her classmates take a field trip to the beach to study tide pools.

Without the sun, our solar system would fall apart. Its gravity is what keeps planets and other celestial bodies moving in orbit. Additionally, the sun plays a big role in Earth's weather, climate, and seasons. We wouldn't know of this if we hadn't spent a lot of time over hundreds of years studying the sun! In this intriguing book, readers head to the yellow dwarf star that is our sun with satellites, probes, and through high-powered telescopes to discover the amazing information missions to and around the sun have taught NASA and other space scientists around the world.

The Blue Planet: Seas of Life reveals the sea and its communities at their most fearsome and alluring.

Handy and comprehensive compliment to usual sources of day-to-day weather information in newspapers, radio, and television information. Includes a wide range of maps, charts, and safety rules based upon past records, research, and experience to inform users of what may be expected from our ever-changing atmosphere.

The Blue Planet: Seas of Life reveals the sea and its communities at their most fearsome and alluring.

Examines how storm trackers follow the paths of hurricanes.

An overview of astronomy that covers astronomical techniques and applications; the motions of various objects in the universe; observatories and telescopes; famous astronomers from ancient times through the twentieth century, and the impact of the field on humankind.