Snc1d Space Exam Study Quiz

AU stands for Astronomical Unit and it is the distance between the Sun and the Earth.

A supernova is a massive explosion that occurs when a massive star reaches the end of its life cycle. This explosion creates a shockwave that can be seen from Earth and releases an enormous amount of energy. The explosion is so powerful that it can outshine an entire galaxy for a short period of time. This event also leads to the formation of heavier elements in the universe.

The sun is a yellow star because it emits a yellowish-white light. The color of a star is determined by its temperature, with hotter stars appearing bluer and cooler stars appearing redder. The sun falls in the middle of this temperature range, making it a yellow star. Its surface temperature is about 5,500 degrees Celsius, which is responsible for the yellow color we perceive.

A nebula is a vast cloud of gas and dust that has the potential to be the birthplace of a star. Nebulas are made up of various elements and molecules, including hydrogen and helium, which are the building blocks of stars. These clouds of gas and dust can be found in different shapes and sizes throughout the universe. Under the force of gravity, the particles within a nebula can come together and form a protostar, eventually leading to the birth of a new star.

SETI stands for Search for Extra Terrestrial Intelligence. This acronym refers to the scientific endeavor of searching for signs of intelligent life beyond Earth. Scientists involved in SETI use various methods, such as radio telescopes, to detect and analyze signals that could potentially indicate the presence of extraterrestrial civilizations. The search for extraterrestrial intelligence is a fascinating field of study that aims to answer the age-old question of whether we are alone in the universe.

The corona refers to the atmosphere and outermost region of the sun, which becomes visible during an eclipse. This is when the moon passes between the sun and the Earth, blocking out the bright light of the sun and allowing us to see the corona. It is a glowing, halo-like structure that extends millions of kilometers into space. The corona is composed of superheated plasma and is much hotter than the sun's surface. It is an important area of study for scientists, as understanding the corona can provide insights into solar activity and its impact on Earth.

Copernicus suggested that the sun is in the middle and all the planets moved around it. This is known as the heliocentric model of the solar system, which replaced the geocentric model that placed Earth at the center. Copernicus' theory revolutionized our understanding of the universe and laid the foundation for modern astronomy.

A black hole is the extreme conclusion of gravity's work in stellar evolution. It is formed when a massive star collapses under its own gravitational pull, resulting in a region of spacetime with an extremely strong gravitational field from which nothing, not even light, can escape. This phenomenon is the result of the star's mass being concentrated in a tiny space, creating a singularity surrounded by an event horizon.

Heliocentric refers to the belief or model that places the sun at the center, with the planets, including Earth, orbiting around it. Geocentric, on the other hand, is the belief or model that places Earth at the center, with the sun and other celestial bodies revolving around it.

After a star runs out of hydrogen, it will become a red giant, which is a phase where the star expands and becomes larger. Eventually, the red giant will shed its outer layers and become a white dwarf, which is a small, dense star composed mostly of carbon and oxygen. Over time, the white dwarf will cool down and fade away, becoming a black dwarf, which is a theoretical end state for a star that has completely cooled down and no longer emits any light or heat.

The correct answer is "phoenix, spirit, opportunity". These three are the most recognized landers/probes.

The correct answer is birth place of stars. The Eagle Nebula contains small clumps of gases called EGG (Evaporating Gaseous Globules), which are dense regions where new stars are formed. These clumps of gas and dust within the nebula serve as nurseries for the birth of stars, as gravity causes the material to collapse and form protostars. The intense radiation from nearby massive stars also plays a role in shaping and sculpting these clumps, creating the famous "Pillars of Creation" seen in Hubble Space Telescope images.

Solar flares are explosive releases of energy that eject clouds of atomic particles into space. On the other hand, solar prominences are large bright features that extend outward from the sun's surface. Both solar flares and solar prominences occur every 11 years, creating what is known as a solar max.

Comets are referred to as "dirty snowballs" because they are composed of a mixture of ice, dust, rock, and organic compounds. As comets travel closer to the Sun, the heat causes the ice to vaporize, creating a glowing coma (a cloud of gas and dust) around the nucleus. This gives the appearance of a bright, glowing "dirty snowball" in the sky. Additionally, comets can leave behind a trail of debris as they pass through space, which is why they are sometimes considered as chunks broken off other celestial bodies.

The correct answer is Mars, Saturn, Venus, Jupiter. This is because Olympus Mons, the largest volcano in the solar system, can be found on Mars. Large rings made out of ice and rock are present around Saturn. Venus has a poisonous atmosphere consisting mainly of carbon dioxide. The Great Red Spot, a massive storm, is located on Jupiter.

Meteorites are chunks broken off other celestial bodies. This means that they are fragments or pieces that have been detached from larger celestial objects, such as planets, asteroids, or moons. These fragments travel through space and eventually enter the Earth's atmosphere, where they are known as meteors. If they survive the journey through the atmosphere and land on the Earth's surface, they are then referred to as meteorites.

The Hubble Space Telescope was not created in 2000 or 1970. It was actually created in 1990 and launched into space in April of that year. Therefore, the correct answer is 1900, as it is the only option that is not a possible creation year for the Hubble Space Telescope.

The correct answer is the third option: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. This is the correct order of the planets in our solar system, starting from the closest to the Sun (Mercury) and moving outward.