Astronomy

Earth's atmosphere interferes with the operation of telescopes. The Hubble Space Telescope is positioned above the atmosphere and therefore can make observations that are impossible from the ground.

Over the past 20 years, the Hubble Space Telescope (HST) has significantly advanced the study of astronomy. Since its initial launch in 1990, the HST has taken thousands of images of astronomical...

Galaxies are large collections of stars, dust and gas held together by gravitational forces. Large galaxies may contain billions of stars, while small ones may have just a few hundred. They can be...

The Hubble Space Telescope is an invention that took 44 years to bring to fruition, yet the wait allowed advances in technology to capture some of the most stunning photographs the human eye has...

The reflecting telescope is a relic from the 17th century, when Galileo first conceived of the idea and Isaac Newton actually built one. Over the years the device has grown in popularity,...

Astrophotography is a dream that took almost 100 years to be fully realized. Today, expensive telescopes like the Hubble Telescope take high resolution pictures of far-off galaxies, while amateur...

Named for astronomer Edwin Hubble and launched into orbit in 1990, the Hubble Space Telescope is exactly that: an optical telescope that's also an orbiting satellite. There have been a variety of...

Eighty percent of the galaxies in the universe can be classified as spiral galaxies. The distinguishing characteristics of spiral galaxies are the appearance of "arms" that seem to spiral around a...

The galaxy is a huge place, so immensely large that it is difficult to imagine the distances between stars. Earth's tiny solar system is often lost among the vast cluster of other stars and...

Part of the charm of stargazing is contemplating how small we are in relation to the rest of the world. As it turns out, we are even smaller than we can possible comprehend. The sheer size of the...

The Hubble Space Telescope, built by the National Aeronautics and Space Administration (NASA), was launched in 1990. It is in orbit around the Earth, outside the bounds of our atmosphere. The...

Amateur astronomers enjoy viewing the night sky with everything from the naked eye to visiting a working observatory like Kitt's Peak in Arizona. The wonders of the universe are there to observe....