Earth Equinox Size:30" x 30" (76 cm x 76 cm) S M L XL 2XL

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The gas is tearing across space at more than 600

Jupiter's moon Io floats above the cloud tops of Jupiter in this image captured by the Galileo spacecraft January 1

in this view of the two posing before the planet and its rings from NASA's Cassini spacecraft

Earth Equinox Size:30" x 30" (76 cm x 76 cm) S M L XL 2XLFrom a geostationary orbit 36,000 kilometers above the equator, Russian meteorological satellite Elektro L takes high resolution images of our fair planet every 30 minutes. But only twice a year, during an Equinox, can it capture an image like this one, showing an entire hemisphere bathed in sunlight. At an Equinox, the Earth's axis of rotation is not tilted toward or away from the Sun, so the solar illumination can extend to both the planet's poles.