Astronauts go into space to fix a satellite, do a scientific experiment, or build a space station. To go outside, the astronaut needs to wear a very special suit to protect himself from extreme temperatures, the lack of oxygen and the irreparable damage that could be caused by the sun's rays.
Astronomers have studied a group of asteroids thanks to observations made from the earth's surface. Some of the most notable are Toutatis, Castalia, Geographos and Vesta. Scientists around the world studied Toutatis, Geographos and Castalia using the observations obtained by radar from the Earth's surface during its stage of maximum approach to Earth.
The Earth and the Moon The Earth is our planet and, for now, we know that there is only life here. The Moon is the only natural satellite on Earth. If astronomy studies the bodies and phenomena of the Universe, there is no doubt that we have the first "raw material" for this study on our own planet, the Earth and (to a lesser extent) on the Moon.
In the image you can see the International Observatory of Calar Alto, in Almería, owned by the German Hispano Astronomical Center, created in 1973. Opened in 1979, and located in the Sierra de Los Filabres, the Hispano-German Astronomical Observatory of Calar Alto It is managed by the Institute of Astrophysics of Andalusia (CSIC) of Granada and by the Max-Planck Institute of Astronomy of Heidelberg, in Germany.
Effelsberg (radio telescope) Dictionary of astronomy, letter E Location where the largest radio telescope in the world is completely mobile (unlike others, such as Arecibo in Puerto Rico, which are fixed). It has a disk-shaped antenna with a diameter of 100 meters and is located in a mountainous area of West Germany, about 40 km.
Located southwest of the city of Shiprock, in New Mexico, the strange Shiprock Mountain is protected territory of the Navaja Nation. It rises around 600 meters above the New Mexico desert, and has been the protagonist of a good number of western movies and novels. It is currently the focus of many photographers.