Nasa: Astronomy Picture of the Day: Edwin Hubble 1889 1953

An image of a typical quasar and a star. An explanation written by a professional astronomer is included. There are also many embedded links within the text to related topics.

This collage of images by the Hubble Space Telescope captured the changes in Jupiter's Great Red Spot over a period of several years.

Every day is a cloudy day on Jupiter, the Solar System's reigning gas giant. This 3-dimensional visualization presents a simplified model view from between Jovian cloud decks based on imaging and spectral data recorded by the Galileo...

Explains that pulsars would be the brightest objects in the sky if we could see gamma-rays.

Image of a group of red giant stars are seen in an image from the edge of the plane of the Milky Way. The evolution of these stars is explained. Many embedded links contained in the text to related topics.

An image of a quasar. The large redshifts imply that quasars lie near the edge of the observable universe and must emit tremendous amounts of energy. There are also many embedded links to related topics.

Details of the brightest supernova of modern times - supernova 1987A in the Large Magellanic Cloud. There are many links for additional information.

At this resource several pictures of nebulae are available with informative caption. Related links and other resources.

A triple eclipse crossing the face of Jupiter on 2 Feb 98. This set of five images captures the passage of the shadows of Io, Callisto, and Ganymede across the face of Jupiter.

Dust, a common and usually minor problem on Earth, presented a major challenge for the Apollo astronauts on the Moon. Here's an interesting solution created by the Apollo 17 crew.