-
he beleaved Sun, Moon, stars, and planets all orbited Earth. The geocentric model served as the predominant description of the cosmos in many ancient civilizations, such as those of Aristotle
-
the Sun, Moon, stars, and planets all orbited Earth. The geocentric model served as the predominant description of the cosmos in many ancient civilizations, such as those of Aristotle
-
Nicolaus Copernicus proposed that the planets instead revolved around the sun. Although his model wasn't completely correct, it formed a strong foundation for future scientists to build on
-
making and recording accurate astronomical observations—had already been done at Uraniborg. To his earlier observations, particularly his proof that the nova of 1572 was a star, he added a comprehensive study of the solar system
-
many historians believe he was the inventor of the first telescope and is also sometimes credited with the invention of the compound microscope
-
1609 he published Astronomia Nova, delineating his discoveries, which are now called Kepler's first two laws of planetary motion. And what is just as important about this work. A fundamental law of nature. Today we call this the scientific method.
-
Of all of his telescope discoveries, he is perhaps most known for his discovery of the four most massive moons of Jupiter, now known as the Galilean moons: Io, Ganymede, Europa and Callisto. When NASA sent a mission to Jupiter in the 1990s, it was called Galileo in honor of the famed astronomer.
-
A reflector telescope uses two mirrors instead of two lenses. When you refract the light changes direction.
-
Astronomer Giovanni Cassini is associated with a number of scientific discoveries and projects, including the first observations of Saturn's moons.
-
his most significant work had to do with forces, and specifically with the development of a universal law of gravity
-
credited as the founder of sidereal astronomy for observing the heavenly bodies. He found the planet Uranus and its two moons, and formulated a theory of stellar evolution.
-
He built an antenna, pictured here, designed to receive radio waves at a frequency of 20.5 MHz. It was mounted on a turntable that allowed it to rotate in any direction, earning it the name "Jansky's merry-go-round". By rotating the antenna, one could find what the direction was to any radio signal.
-
His equation that helped explain special relativity – E = mc2 – is famous even among those who don't understand the underlying physics.
-
The Sputnik rocket was an orbital carrier rocket designed by Sergei Korolev in the Soviet Union, derived from the R-7 Semyorka ICBM. On 4 Oct 1957 it was used to perform the world's first satellite launch placing Sputnik 1 into a low orbit.
-
Yuri Gagarin was the first person to fly in space. His flight, on April 12, 1961, lasted 108 minutes
-
distinguished war hero, the first American to orbit the earth, state senator and the oldest person to go into space.
-
he was astronomer who classified types of stars by relating their colour to their absolute brightness—an accomplishment of fundamental importance to modern astronomy. The Hertzsprung-Russell diagram of stellar types was named (in part) for him.
-
The Apollo program was designed to land humans on the Moon and bring them safely back to Earth.
-
The first launch of the Space Shuttle occurred on 12 April 1981, exactly 20 years after the first manned space flight. When the orbiter Columbia, with two crew members.
-
the first man to walk on the moon
-
worked at the Mount Wilson Observatory in California, he started working there. he also found out we are in the milky way
-
Mars Pathfinder was launched December 4, 1996 and landed on Mars on July 4, 1997. It was designed as a technology look at a new way to deliver an instrumented lander and the first-ever robotic rover to the surface of Mars
-
The Cassini spacecraft orbited Saturn from June 30, 2004, until Sept. 15, 2017, when the probe ended its life with a plunge into the ringed planet's atmosphere.
-
Just after midnight on New Year’s Day, NASA’s New Horizon’s spacecraft flew past the Kuiper Belt object.
