People have dreamed of exploring the Moon for hundreds of years. The United States and Russia made the dream a reality in the middle of the 20th century. In 1959, Luna 1- the first spacecraft to leave the Earth’s gravity – was launched toward the Moon. A decade of intense space activity followed as Russian and American probes, robots, and crewed craft were sent to investigate and land on the lunar surface.
The Clementine space mission, launched in 1994, and Lunar Prospector, launched in 1998, found evidence that water ice is hidden in shadowed craters in the Moon’s Polar regions. The ice probably comes from comets that crashed into the Moon long ago. It could be either melted to supply a future Moon base with water, or broken down into oxygen for astronauts to breathe and into hydrogen for rocket fuel.
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Jupiter Explained: Inside and Out
Jupiter is the fifth planet from the Sun and the most vast planet in the Sun oriented System. It's a gas monster with mass one-thousandth that of the Sun but is more than two times the mass of every last trace of the different planets in our Earth's planetary group joined together. Jupiter is arranged as a gas monster plus Saturn, Uranus and Neptune. As one, these four planets are at times poi...
Jupiter is the fifth planet from the Sun and the most vast planet in the Sun oriented System. It's a gas monster with mass one-thousandth that of the Sun but is more than two times the mass of every last trace of the different planets in our Earth's planetary group joined together. Jupiter is arranged as a gas monster plus Saturn, Uranus and Neptune. As one, these four planets are at times poi...
How Eclipses of the Sun Happen
In its 27 – day Orbit of the Earth, the Moon sometimes passes directly in front of the Sun and we see a solar eclipse. In one of the natural world’s most eerie, beautiful spectacles, the dark circle of the Moon gradually creeps over the Sun. Between two and five solar eclipses are visible from somewhere on the Earth each year. When the Moon is at its farthest from the Earth, it is not ...
In its 27 – day Orbit of the Earth, the Moon sometimes passes directly in front of the Sun and we see a solar eclipse. In one of the natural world’s most eerie, beautiful spectacles, the dark circle of the Moon gradually creeps over the Sun. Between two and five solar eclipses are visible from somewhere on the Earth each year. When the Moon is at its farthest from the Earth, it is not ...
Radio Astronomy
Radio waves are the same type of waves as light. They have less energy than visible light and so have a longer wavelength, but they travel at the same speed as light. At night our eyes and optical telescopes sees light from stars. But normal stars only produce radio waves very weakly.
Radio waves are the same type of waves as light. They have less energy than visible light and so have a longer wavelength, but they travel at the same speed as light. At night our eyes and optical telescopes sees light from stars. But normal stars only produce radio waves very weakly.
Impact Craters
When a Metorite collides with Earth it can form an impact crater – a bowl – shaped hollow in the Earth’s surface. Space rocks have produced in this way throughout Earth’s life, especially when the planet was young, about 4 billion years ago. Space rocks do not have to hit Earth to have a devastating effect. On june 30, 1908, there was an explosion 3.5 miles up in Earth’s atmosphere, above...
When a Metorite collides with Earth it can form an impact crater – a bowl – shaped hollow in the Earth’s surface. Space rocks have produced in this way throughout Earth’s life, especially when the planet was young, about 4 billion years ago. Space rocks do not have to hit Earth to have a devastating effect. On june 30, 1908, there was an explosion 3.5 miles up in Earth’s atmosphere, above...
Mars Explained: Inside and Out
Scratches is the fourth planet from the Sun and the second most diminutive planet in the Earth's planetary group. Named following the Roman lord of war, its frequently depicted as the "Red Planet", as the iron oxide common on its surface gives it a rosy appearance. Scratches is a physical planet with a flimsy climate, having surface offers reminiscent both of the effect pits of the Moon and th...
Scratches is the fourth planet from the Sun and the second most diminutive planet in the Earth's planetary group. Named following the Roman lord of war, its frequently depicted as the "Red Planet", as the iron oxide common on its surface gives it a rosy appearance. Scratches is a physical planet with a flimsy climate, having surface offers reminiscent both of the effect pits of the Moon and th...
The Solar System's Planets, Size, and Orbits
The Earth's planetary group is additionally home to various locales populated by more minor objects. The space rock sash, which falsehoods between Scratches and Jupiter, is comparable to the physical planets as it is made basically out of rock and metal. Past Neptune's circle falsehood the Kuiper cinch and scattered disc; joined citizenries of trans-Neptunian questions made for the most part out o...
The Earth's planetary group is additionally home to various locales populated by more minor objects. The space rock sash, which falsehoods between Scratches and Jupiter, is comparable to the physical planets as it is made basically out of rock and metal. Past Neptune's circle falsehood the Kuiper cinch and scattered disc; joined citizenries of trans-Neptunian questions made for the most part out o...
Explaining Gravitational Lensing
Light always leaves from a young, star forming blue galaxy near the edge of the visible universe. Some of the light passes through a large cluster of galaxies and surrounding dark matter, directly in the line of sight between earth and the distant galaxy. The dark matter’s gravity acts like a lens, bending the incoming light.
Light always leaves from a young, star forming blue galaxy near the edge of the visible universe. Some of the light passes through a large cluster of galaxies and surrounding dark matter, directly in the line of sight between earth and the distant galaxy. The dark matter’s gravity acts like a lens, bending the incoming light.
The Universe as a Capsule
The actual metric enlargement of area may be the improve with the distance in among two remote elements of the actual world with time. It is really an intrinsic expansion — that's, it is defined by the family member divorce associated with areas of the actual universe and never through action “outward" into preexisting area since, as an example, a surge associated with make a difference. The p...
The actual metric enlargement of area may be the improve with the distance in among two remote elements of the actual world with time. It is really an intrinsic expansion — that's, it is defined by the family member divorce associated with areas of the actual universe and never through action “outward" into preexisting area since, as an example, a surge associated with make a difference. The p...
Space Object Comparisons
Sirius is the brightest star in the night sky. With a picture based clear degree of −1.46, it is for all intents and purpose twice as bright as Canopus, the subsequently brightest star. The name "Sirius" is dead set from the Ancient Greek ("sparkling" or "scorcher"). The star has the Bayer designation Alpha Canis Majoris. What the uncovered eye perceives as a particular star is blatantly a paralle...
Sirius is the brightest star in the night sky. With a picture based clear degree of −1.46, it is for all intents and purpose twice as bright as Canopus, the subsequently brightest star. The name "Sirius" is dead set from the Ancient Greek ("sparkling" or "scorcher"). The star has the Bayer designation Alpha Canis Majoris. What the uncovered eye perceives as a particular star is blatantly a paralle...
Looking Inside the Sun
The Sun is our nearest star. It is a huge, luminous ball of gas like all the other stars. It consists mostly of hydrogen, and helium with tiny amounts of other elements. The Corona is the outer shell of the Sun’s atmosphere. It is extremely hot with temperatures reaching up to 2 million degrees. In the radiation zone, the energy is transported outwards by radiation. It covers about 70% of the Sun’...
The Sun is our nearest star. It is a huge, luminous ball of gas like all the other stars. It consists mostly of hydrogen, and helium with tiny amounts of other elements. The Corona is the outer shell of the Sun’s atmosphere. It is extremely hot with temperatures reaching up to 2 million degrees. In the radiation zone, the energy is transported outwards by radiation. It covers about 70% of the Sun’...
Old Time Map of the Celestial Hemispheres
The divine circle might be acknowledged to be interminable in sweep. This denotes any focus within it, incorporating that involved by the spectator, might be recognized the inside. It moreover indicates that everything parallel lines, be they millimeters separated or crosswise over the Earth's planetary group from one another, will appear to cross the circle at a lone indicate, comparable to the v...
The divine circle might be acknowledged to be interminable in sweep. This denotes any focus within it, incorporating that involved by the spectator, might be recognized the inside. It moreover indicates that everything parallel lines, be they millimeters separated or crosswise over the Earth's planetary group from one another, will appear to cross the circle at a lone indicate, comparable to the v...
Constellation's Components
The Constellation space transportation system will be able to carry out multiple tasks, space station resupply and moon missions, among others – using some shared and minimally modified elements, TO reduce risks and save costs, many of the components were based on existing technologies.
The Constellation space transportation system will be able to carry out multiple tasks, space station resupply and moon missions, among others – using some shared and minimally modified elements, TO reduce risks and save costs, many of the components were based on existing technologies.
Mars: Interesting Facts Overview
Red Planet happens to be host to 5 working spacecraft: a few within side orbit—the Mars Odyssey, Mars Convey, and also Red Planet Reconnaissance Orbiter; and a couple on the surface—Mars Pursuit Rover Chance and also the Red Planet Science Laboratory Curiosity. Defunct ballistic capsule at first glance contain MER-A Spirit, and several additional nonmoving landers as well as rovers, both profi...
Red Planet happens to be host to 5 working spacecraft: a few within side orbit—the Mars Odyssey, Mars Convey, and also Red Planet Reconnaissance Orbiter; and a couple on the surface—Mars Pursuit Rover Chance and also the Red Planet Science Laboratory Curiosity. Defunct ballistic capsule at first glance contain MER-A Spirit, and several additional nonmoving landers as well as rovers, both profi...
Star Map - Northern Hemisphere December to May
In winter, constellations and stars are the main attractions because the milky way is faint. These include the brightest constellation, Orion, and the brightest star. Most of the visible stars are in our own local arm of the galaxy, which also contains several star nurseries that can be seen in close – up such as the Orion Nebula.
In winter, constellations and stars are the main attractions because the milky way is faint. These include the brightest constellation, Orion, and the brightest star. Most of the visible stars are in our own local arm of the galaxy, which also contains several star nurseries that can be seen in close – up such as the Orion Nebula.
Astronomy 101 Collection
According to Quantum mechanics, electrons bound to an atom can only have particular values of energy; they are unique to that element. Absorption or emission of a photon of light by the atom occurs when the energy of that photon matches the difference between two of these energy levels. The gravitational pull of any object gets weaker the further you move from the object. Thus, the Moon p...
According to Quantum mechanics, electrons bound to an atom can only have particular values of energy; they are unique to that element. Absorption or emission of a photon of light by the atom occurs when the energy of that photon matches the difference between two of these energy levels. The gravitational pull of any object gets weaker the further you move from the object. Thus, the Moon p...
List of Earth's Satellites
The planet's first counterfeit satellite, the Sputnik 1, was started by the Soviet Union in 1957. In light of the fact that then, many satellites have been started into space around the Earth. Certain satellites, remarkably space stations, have been started in parts and collected in circle. Fake satellites begin from more than 50 nations and have utilized the satellite starting abilities of te...
The planet's first counterfeit satellite, the Sputnik 1, was started by the Soviet Union in 1957. In light of the fact that then, many satellites have been started into space around the Earth. Certain satellites, remarkably space stations, have been started in parts and collected in circle. Fake satellites begin from more than 50 nations and have utilized the satellite starting abilities of te...
Interplanetary Travel
The planets are very far away. A spacecraft traveling at 60 mph a typical speed of a car on a highway – would take about 60 years to reach Mars. Fortunately, rockets travel much faster than this. The Voyager spacecraft sped from the Earth at 32000 MPH. But even at this speed, travel to the planets takes a long time. The Future space colonies will have to be self – sufficient, growing t...
The planets are very far away. A spacecraft traveling at 60 mph a typical speed of a car on a highway – would take about 60 years to reach Mars. Fortunately, rockets travel much faster than this. The Voyager spacecraft sped from the Earth at 32000 MPH. But even at this speed, travel to the planets takes a long time. The Future space colonies will have to be self – sufficient, growing t...
50 Years of Spaceflight -- Capsles and Shuttles
It has been 50 years since the Russian pilot Yuri Gagarin has stepped onto the Moon in 1961. Since then more than 500 people have been launched into space in a variety of vessels. Twelve people have walked on the moon, and an additional 14 have flown over the moon without landing. The farthest away that humans have traveled so far was 248655 mi, which was achieved by the Apollo 13 astronauts ...
It has been 50 years since the Russian pilot Yuri Gagarin has stepped onto the Moon in 1961. Since then more than 500 people have been launched into space in a variety of vessels. Twelve people have walked on the moon, and an additional 14 have flown over the moon without landing. The farthest away that humans have traveled so far was 248655 mi, which was achieved by the Apollo 13 astronauts ...
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