Shop Windows to the Universe

Dig into Montana Before History: 11K Years of Hunter-Gatherers in the Rockies and Plains by D. H. MacDonald, Ph.D. See our online store book collection.
The constellation Cancer The Crab.
Click on image for full size
Image courtesy of Visual language.

Cancer

According to an ancient Greek legend, the figure of a gigantic crab was placed in the nighttime sky by the goddess Hera to form the constellation Cancer. Hera swore to kill Heracles, the most famous Greek hero.

Heracles committed a great crime and in order to be forgiven, he had to perform twelve difficult tasks. One of these tasks was destroying the terrible water-serpent, Hydra. The crab tried to help Hydra, but Heracles stepped on him.

Shop Windows to the Universe Science Store!

Our online store includes fun classroom activities for you and your students. Issues of NESTA's quarterly journal, The Earth Scientist are also full of classroom activities on different topics in Earth and space science!

Windows to the Universe Community

News

Opportunities

You might also be interested in:

Traveling Nitrogen Classroom Activity Kit

Check out our online store - minerals, fossils, books, activities, jewelry, and household items!...more

An Exoplanet that Looks Like Jupiter!

A team of scientists found 13 planets that are outside our solar system. Because these planets are outside our solar system, they are called exoplanets. One of these exoplanets is special because it may...more

Ahsonnutli

Ahsonnutli was the sky father and chief god of the Navajo. He created heaven, Earth, and the sky. The four main directions are believed to be supported by giants. Each direction has a specific color: white-east;...more

Amphitrite

In Roman and Greek mythology, Amphitrite was a beautiful sea nymph. Poseidon (Neptune), who was the god of the sea and earthquakes, fell in love with her at first sight. Amphitrite did not respond to his...more

Aphrodite

Aphrodite was the Greek goddess of love and beauty. She was known to the Romans as Venus. To the perfection of her figure and the purity of her features she added an innocent grace. On her sweet face she...more

Apollo

In Greek mythology, Apollo was the son of Jupiter(in Greek Zeus) and Leto (Letona). He was the god of the Sun, logic, and reason, and was also a fine musician and healer. He was known as the god who could...more

Cancer

According to an ancient Greek legend, the figure of a gigantic crab was placed in the nighttime sky by the goddess Hera to form the constellation Cancer. Hera swore to kill Heracles, the most famous Greek...more

Cepheus

In the Northern Hemisphere sky is the constellation Cepheus, king of Ethiopia. His wife was Cassiopeia. Cassiopeia claimed that she and her daughter Andromeda were more beautiful than the sea nymphs, the...more

Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA