Telescopes

Isaac newton developed the laws of gravity when an apple fell out of a tree and hit him on the head.

Astronomers typically look through telescopes at the stars to study celestial objects such as planets, stars, galaxies, and other phenomena in the universe. They use telescopes to gather data and make observations that help expand our knowledge of the cosmos.

The moon is in pretty good shape, overall. It has very little pollution on it. Just a few artifacts, mostly of keen historical interest.

The moon is, of course, spherical. It is shaped much like a ball. When I gaze upon its surface, the evening of January 29th, 2009, I notice it in the western sky, preceding Venus. It is a fairly thin crescent, and combined with Venus looks a bit like the flag of Turkey--the star and crescent.

The temperature of the moon during the night is -233 Celsius and 123 Celsius during the day. It is because the Moon doesnÕt have an atmosphere to block the Sun rayÕs that could help to trap heat at night.

The answer is obviously C.

It's not hiding from the sunlight that's the problem, but the (mostly blue) light scattered by the air.

Your idea would work on the moon,

and it has been tried on Earth, with sad results.

If you are a junior astronomer then forget getting a telescope unless you are willing to get a very good one costing several hundreds of pounds or dollars. Cheap 'toy' telescopes are next to useless, as they claim to have great magnification, but the image is usually very poor and grainy and impossible to see properly because the optics and light gathering power are usually pretty poor. Also, the mounting of toy telescopes are usually flimsy and result in a great deal of shake. Often a good mount is as espensive as the telescope itself. A good pair of binoculars with a tripod to reduce shake should be perfectly adequate for seeing the craters on the moon, Jupiter and its moons, Venus, and large star clusters and nebulae like the Pleiades. The rings of Saturn may be too small for a small pair of binoculars, and so in this case a decent telescope is better. If you are keen on getting a telescope rather than binoculars then there are some excellent sites that will sell you one and give advice. www.telescopehouse.com a a superb UK site where you can get excellent advice and real machines that are not toys. If you are living in the UK, avoid toy 'scopes from Argos, catalogues or camera shops - they are next to useless, poorly made, shake all over the place and their optics are dreadful - and they are expensive for a pile of junk. If you wish to take up the hobby seriously, then a reflector telescope is better with a mirror of 6 inches or more, (or 8 if you live in a city - to compensate for light pollution) with a really good Equatorial mount to avoid shake. If you can afford a motor drive too to compensate for the earth's motion then that would be an advantage. To get a variety of magnifications you will need several eyepieces of different focal lengths. Choose only reputable makes like Celestron or Meade whose optics are excellent.

One last point - NEVER use a telescope to look at the sun with or without a 'safety' filter. That is the surest way of you ending up permanently blind. Dark filters may cut down the light but most of the sun's heat usually passes straight through, is focussed just like light onto your retina, ad, whilst you think everthing is Ok it merrily burns a hole in your retina just like catching a piece of paper on fire using a magnifying glass. You have been warned!

NRAO operates a few sites, including the Very Large Array (VLA) in New Mexico, the Atacama Large Millimeter Array (ALMA) in Chile, the Very Long Baseline Array (VLBA) across the United States, and the Green Bank Telescope (GBT) in West Virginia.

Neural networks / artificial intelligence.

Terminator technology in agriculture is the use of genetic engineering to create varieties that produce seeds that are sterile and will not produce a crop the following year.

The light that we see from Canopus today actually left the star over 310 years ago. Canopus is located approximately 310 light-years away from Earth, so the light we see now started its journey towards us over three centuries ago.

Microscopes and telescopes are similar in that they both use lenses to magnify and enhance our ability to see objects that are too small or too far away to be seen with the naked eye. They rely on principles of optics to manipulate light in order to produce clearer and enlarged images.

Space junk, in others words is trash floating around our Earth caught in a circular orbit. Space junk has caused problems and I will happily list a few for the answer. For one, if it is biggest enough sometimes it will fall back to the Earth and unlike most things, not burn up in the atmosphere and come crashing to Earth which itself poses dangers. Another is moving space junk can become problems to space stations. Damage, severe or little can be caused by junk ramming into the station. More problems it poses by space shuttles can, sometimes, hit space junk which you can figure is a problem.

More or less Space Junk in other words is pollution in space.

Voyager 1 is roughly 15 billion kilometers from the Sun (about 105 times the distance from the Sun to the Earth). Both of the Voyager craft have now traveled far beyond the orbit of Pluto, and have recently "officially" left the solar system (crossed the heliopause, the boundary where the solar wind meets the interstellar magnetic field).

The planet Mars can appear reddish and star-like in the night sky. Its reddish hue is due to iron oxide, or rust, on its surface. You can see Mars without a telescope when it is visible in the night sky.

Satellites are made by 3 types of organizations:

# Commercial Companies (e.g. Telecommunication) # Governments (e.g. NASA, ROSKOSMOS, ESA) # Universities and other scientific institutes. Each of course for there own business or research.

The telescope was invented by somebody who was toying with two lenses and while looking through them he saw that distant objects in the sky were magnified a great many times.

He jumped up and down while shouting "Hurray, hurray, I just invented the telescope. Long may I live!"

Telescopes can not detect any radiation for which they were not specifically built. For example, a radio telescope is specifically designed to detect radio waves. Also, telescopes can not detect radiation that is too faint for them. What is too faint depends on the capabilities of the telescope.

NASA sent a probe to the moon in 2009 which, among other things, took pictures of each of the Apollo landing sites. Searching NASA for Lunar Reconnaissance Orbiter images should yield the images in question.

They didn't know what the telescope was. It was an accident. They called it the telescope, and tried to figure out what it did. They figured out that it can see far away. They (hans lippershey,and others) sold it to the military, and further more found out it could see farther. They looked so far they saw space, and they started inventing different galaxies.

Saturn was the outermost planet known until William Herschel discovered Uranus in the late 18th Century, so unless you count this as ancient, it would be inaccurate to say that the ancients could 'see' the planets beyond Saturn.

Telescopes are first definitely attested in the early 17th Century. Photography in the modern sense (using a camera to record sharp images on a light-sensitive film, as opposed to more basic forms like the pinhole camera) didn't exist until the early 19th Century.

I'm guessing that your question arises from the (quite sensible) assumption that all of the planets were named by the ancients, but this is not the case. The 'trans-Saturnian' (if you'll pardon the term) planets were named after Greek and Roman deities by later astronomers.

Interestingly, Uranus and Pluto are named after Greek gods, rather than the Roman gods that give the other planets their names. I suppose that 'Caelus' and 'Dis Pater' didn't quite have the same ring to them.

Hope this helps.

Neptune appears blue due to the presence of methane in its atmosphere, which absorbs red light and reflects blue light. The planet also has bands of darker blue and white clouds caused by different atmospheric compositions and temperatures.

Go to youtube and search......face of a dog in a star....I took this video and was told that it was sirius, or the dog star. I can't argue with that because it looks like a dog.

I searched everywhere to find what a pic of the dog face in dog star looks like and came up with nothing. Maybe I am the first one to actually photograph it.

Radio telescopes do not use visual light energy. Instead, they detect radio waves emitted by celestial objects in space. These telescopes are used to study various astronomical phenomena, such as pulsars and galaxies.

parallax second When we observe a star from opposite ends of the Earth's orbit, if there is a parallax difference of 1 arc second, that star is 1 parsec away.

The telescope sent into space to capture sharper and clearer images of planets, stars, and deep space is called the Hubble Space Telescope.