Watch the aurora australis, the southern lights, from outer space

Watch the aurora australis, the southern lights, from outer space

Watch the aurora australis, the southern lights, from outer space

Watch a time-lapse video of the aurora australis in the Southern Hemisphere.

NASA

Watch the aurora australis, the southern lights, from outer space
Understanding Newton's theory of universal gravitation
What is Earth's atmosphere composed of?
See a survey comparing the largest known single living organisms on Earth: from the animal, plant, and fungal kingdoms
Examine the speculation of the presence on Mars of life that originated on Earth and, alternatively, life on Earth that originated on Mars
Learn how the earth keeps itself fresh and new and how the chemical properties of zircon determine the age of the earth
How Earth's orbit and tilt create seasons
View of Earth from the Messenger captured by the Mercury Dual Imaging System's wide-angle camera
Study the different ways of defining a year - a tropical year, a sidereal year, and the anomalistic year