These maps show stars visible all year in the northern and southern hemispheres. They also mark the position of interesting objects, such as star clusters and galaxies. To see what is visible, face north in the northern hemisphere and south in the southern hemisphere.
The Variable stars contains pulsating variables, the eclipsing variables and the rotating variables. Toward the end of their lives, stars often pulsate, varying in brightness, temperature and size. Some pairs of stars are so close to each other that they look like a single star. In addition, if their orbits are angled edge-on to the Earth, each start periodically passes in front of its companion. Some stars vary because their surfaces are covered with spots similar to sunspots.
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Uranus Explained: Inside and Out
Uranus is the seventh planet from the Sun. It has the third-most vast planetary span and fourth-most impressive planetary mass in the Earth's planetary group. Uranus is comparative in arrangement to Neptune, and both are of offbeat substance structure than the more vast gas goliaths Jupiter and Saturn. Astrochemists in some cases place them in a marked classification called "ice goliaths". Ura...
Uranus is the seventh planet from the Sun. It has the third-most vast planetary span and fourth-most impressive planetary mass in the Earth's planetary group. Uranus is comparative in arrangement to Neptune, and both are of offbeat substance structure than the more vast gas goliaths Jupiter and Saturn. Astrochemists in some cases place them in a marked classification called "ice goliaths". Ura...
Satellites Orbiting Earth
In the connection of spaceflight, a satellite is an item which has been put into space by human endeavour. Such protests are now and again called simulated satellites to recognize them from instinctive satellites for example the Moon.
In the connection of spaceflight, a satellite is an item which has been put into space by human endeavour. Such protests are now and again called simulated satellites to recognize them from instinctive satellites for example the Moon.
What TV Shows are Aliens Watching Now? What Happened to our TV Shows?
If extraterrestrials were watching our TV shows, this is what they would be watching, depending on where they are in space. This concept is extremely interesting, because our TV shows are never lost, they are still being broadcasted in different areas of the universe. Waves travel nearly forever in space, unless an outside force acts on them.
If extraterrestrials were watching our TV shows, this is what they would be watching, depending on where they are in space. This concept is extremely interesting, because our TV shows are never lost, they are still being broadcasted in different areas of the universe. Waves travel nearly forever in space, unless an outside force acts on them.
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...
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...
Black Holes Explained
The most Bizarre objects in the Universe, black holes are aptly named – they emit no visible light at all. And yet, most black holes are the end state of the most brilliant objects in the cosmos; giant stars that go supernova. The super compressed core that remains after the explosion has such strong gravity that even light cannot escape it – so the object is black.
The most Bizarre objects in the Universe, black holes are aptly named – they emit no visible light at all. And yet, most black holes are the end state of the most brilliant objects in the cosmos; giant stars that go supernova. The super compressed core that remains after the explosion has such strong gravity that even light cannot escape it – so the object is black.
Jupiter's Moons Explained
The planet Jupiter has 67 affirmed moons. This gives it the most substantial entourage of moons with "sensibly secure" circles of any planet in the Sun oriented System. The most monstrous of them, the four Galilean moons, were identified in 1610 by Galileo Galilei and were the first protests recognized to circle a figure that was not Earth or the Sun. From the close of the 19th century, handfu...
The planet Jupiter has 67 affirmed moons. This gives it the most substantial entourage of moons with "sensibly secure" circles of any planet in the Sun oriented System. The most monstrous of them, the four Galilean moons, were identified in 1610 by Galileo Galilei and were the first protests recognized to circle a figure that was not Earth or the Sun. From the close of the 19th century, handfu...
The Future of NASA
Today man has started a striking and driven revamped space drive to prepare us to investigate revamped worlds, improve more creative mechanics, cultivate revamped commercial ventures, build our perceiving of the earth, unfold our presence in the earth's planetary group, and motivate the cutting edge of travellers.
Today man has started a striking and driven revamped space drive to prepare us to investigate revamped worlds, improve more creative mechanics, cultivate revamped commercial ventures, build our perceiving of the earth, unfold our presence in the earth's planetary group, and motivate the cutting edge of travellers.
Exploring the Planets
A planetary spacecraft has basic instruction programmed into its onboard computers at launch. However, most of the details are sent by controllers on Earth at a later stage, because journeys are often several years long. After discovering a problem with the radio transmissions between Cassini and Huygens, mission controllers were able to change their plans.
A planetary spacecraft has basic instruction programmed into its onboard computers at launch. However, most of the details are sent by controllers on Earth at a later stage, because journeys are often several years long. After discovering a problem with the radio transmissions between Cassini and Huygens, mission controllers were able to change their plans.
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...
The Space Capsule
The Space Capsule has been developed for NASA to service the International space station; the reusable Dragon capsule is lofted into orbit by Spacex’s Falcon 9 rocket. While the first flights are to carry cargo only, the capsule was designed to be capable of carrying up to seven astronauts.
The Space Capsule has been developed for NASA to service the International space station; the reusable Dragon capsule is lofted into orbit by Spacex’s Falcon 9 rocket. While the first flights are to carry cargo only, the capsule was designed to be capable of carrying up to seven astronauts.
Astrology Star Chart Fall
A star chart or star map is a map of the night sky. Astronomers divide these into grids to use them more easily. They are used to identify and locate astronomical objects such as stars, constellations and galaxies. They have been used for human navigation since time immemorial.
A star chart or star map is a map of the night sky. Astronomers divide these into grids to use them more easily. They are used to identify and locate astronomical objects such as stars, constellations and galaxies. They have been used for human navigation since time immemorial.
NASA's Future Capsule
NASA has decided that the MPCV, or Multi-purpose Crew Vehicle, will be America’s next crewed spacecraft following the retirement of the space shuttle. The MPCV program is a refocus of the Orion Crew Vehicle Program, which has been in development since 2005.
NASA has decided that the MPCV, or Multi-purpose Crew Vehicle, will be America’s next crewed spacecraft following the retirement of the space shuttle. The MPCV program is a refocus of the Orion Crew Vehicle Program, which has been in development since 2005.
Farside of the Moon
The farside of the moon is always turned away from the Earth. Its appearance remained a mystery until 1959, when the Russian spacecraft Luna 3 was able to travel behind the Moon and send back the first photographs. Although the farside looks similar to the moon’s nearside, there are obvious differences. It has few maria, because the lunar crust is thicker than on the nearside, making it dif...
The farside of the moon is always turned away from the Earth. Its appearance remained a mystery until 1959, when the Russian spacecraft Luna 3 was able to travel behind the Moon and send back the first photographs. Although the farside looks similar to the moon’s nearside, there are obvious differences. It has few maria, because the lunar crust is thicker than on the nearside, making it dif...
Mars World Map
In 1659 Dutch astronomer Christian Huygens, using an early telescope, drew the first sketch of a surface feature on Mars, a dark patch know today as Syrtis Major. More than three centuries later the mars global Surveyor is charting the entire planet. Data beamed from the orbiting surveyor have rendered a detailed and true-color map of this seemingly most Earthlike of planets.
In 1659 Dutch astronomer Christian Huygens, using an early telescope, drew the first sketch of a surface feature on Mars, a dark patch know today as Syrtis Major. More than three centuries later the mars global Surveyor is charting the entire planet. Data beamed from the orbiting surveyor have rendered a detailed and true-color map of this seemingly most Earthlike of planets.
Neptune Explained: Inside and Out
Neptune is the eighth and most distant planet from the Sun in the Earth's planetary group. It's the fourth-most expansive planet by distance across and the third-most vast by mass. Neptune is 17 times the mass of Earth and is to some degree more enormous than its close-twin Uranus, which is 15 times the mass of Earth but not as dense. On normal, Neptune circles the Sun at a separation of 30...
Neptune is the eighth and most distant planet from the Sun in the Earth's planetary group. It's the fourth-most expansive planet by distance across and the third-most vast by mass. Neptune is 17 times the mass of Earth and is to some degree more enormous than its close-twin Uranus, which is 15 times the mass of Earth but not as dense. On normal, Neptune circles the Sun at a separation of 30...
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 ...
The Planets' Size Comparison
A planet is a heavenly figure circling a star or stellar remainder that is monstrous enough to be adjusted by its particular gravity, is not colossal enough to create thermonuclear combination, and has cleared its neighboring area of planetesimals. The term planet is antiquated, with ties to history, science, mythology, and religion. The planets were basically viewed by a considerable number of ea...
A planet is a heavenly figure circling a star or stellar remainder that is monstrous enough to be adjusted by its particular gravity, is not colossal enough to create thermonuclear combination, and has cleared its neighboring area of planetesimals. The term planet is antiquated, with ties to history, science, mythology, and religion. The planets were basically viewed by a considerable number of ea...
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