Question: Solar radiation is evenly distributed around the Earth.
Answer: Much more solar radiation is received in the Earth’s low latitudes, near the Equator, than in the high latitudes near the poles. This helps account for differences in climate.
Question: Despina is a moon of Neptune.
Answer: Despina is a tiny moon of Neptune. Only 148 kilometers across, Despina was discovered in 1989, in images from the Voyager 2 spacecraft taken during its encounter with Neptune, the distant gas giant.
Question: Rigel is the brightest star in Orion.
Answer: Rigel, the constellation’s brightest star and the seventh brightest star in the sky, marks Orion’s left foot. It is a blue-white supergiant located 910 light-years away from Earth.
Question: The farthest star known to us died 13 billion years ago.
Answer: In 2009 scientists discovered gamma rays emanating from the farthest star ever found. It died 13 billion years ago, soon after the universe formed.
Question: The first scientist on the Moon was a physician.
Answer: The first scientist on the Moon was Harrison Schmitt, a geologist who walked on the Moon during Apollo 17, the last U.S. lunar mission, in December 1972.
Question: The two countries with the most large scientific telescopes are the United States and Chile.
Answer: Arizona and Hawaii in the United States and the South American country of Chile are 数字货币杠杆交易_数字货币周home to most of the world’s most powerful telescopes.
Question: The International Space Station was launched in one piece in 1998.
Answer: Dozens of launches by American and Russian spacecraft have taken modules and parts into low Earth orbit, where they are assembled as part of the International Space Station.
Question: The atmosphere of Uranus is made primarily of oxygen.
Answer: The atmosphere of Uranus is primarily composed of molecular hydrogen, helium, and methane. Humans could not breathe freely on Uranus, since we require oxygen, which is absent there.
Question: Comets are made of superheated, molten rock.
Answer: Scientists think comets have a nucleus made of frozen water and gases mixed with dust and rocky material. They are often described as "dirty snowballs."