Many have tied the existence of a rogue planet with Eris, a dwarf planet found beyond Neptune.
Antarctica fits the definition of a desert because it has an annual precipitation of less than 10 inches and is devoid of vegetation.
The main purpose of Salyut 1was to study the effects of long duration spaceflight on the human body and to take photographs of the Earth from space.
Aeronautical engineers created the V-22, an aircraft that could combine the speed and range of a turboprop airplane with the vertical agility of a helicopter.
Most theories say that asteroids are bits and pieces left over from the formation of the solar system.
The sun is at an average distance of about 93,000,000 miles (150 million kilometers) away from Earth.
Modern hot- air balloons lifted off in 1783 with a demonstration in front of King Louis XVI, Marie Antoinette, and a crowd of 130,000 in Annonay, France.
About forty percent of our rivers and 46 percent of lakes are too contaminated for swimming or aquatic life.
Astronomers say further exploration of the Kuiper Belt could lead to the discovery of even more dwarf planets.
Hurricane is a general term for a tropical storm that forms in the Atlantic Ocean or eastern part of Pacific.
According to astronomers, comets formed around 4.6 billion years ago when the solar system was born.
Glenn was the first American astronaut to orbit Earth. He then became the oldest person in space years later.