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from article Continental drift
Map of the Earth as Pangea broke up as a result of continental drift. (Copyright © McGraw-Hill)
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Image
from article Stalactites and stalagmites
Stalactite and stalagmite deposits. Along the central opening are deposits made by water as it dripped from the crack in the limestone. Outside layers were deposited by water flowing over the surface. Water may drip to the floor and create a…
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from article Star
A view of the night sky from Cerro Paranal in the Atacama Desert in Chile. The bright star at top left is Sirius, the brightest star other than the Sun as seen from Earth. The bright star at right is Canopus, which happens to be the second brightest…
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from article Star
Looking toward the core of Milky Way, along a line of sight holding millions of stars in the disk of the Galaxy and obscuring dark bands of dust. (Credit: NASA)
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from article Star
The Hertzsprung-Russell (HR) diagram, which plots stars' temperatures (x axis) against their luminosities (y axis). Numerous examples of stars in the Milky Way are included in this sample diagram. (Credit: ESO)
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from article Star
An artist's impression of the sizes and appearances of a typical Sunlike star, a low-mass star, a brown dwarf, and a gas giant planet. (Credit: NASA’s Goddard Space Flight Center)
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from article Star
The Jewel Box open cluster (Kappa Crucis), which lies next to the Crux (Southern Cross) constellation. (Credit: ESO)
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from article Star
Globular cluster 47 Tucanae, one of the grandest in the Milky Way Galaxy, containing over 1 million stars, seen here by the Hubble Space Telescope. [Credit: NASA, ESA, and the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration. Acknowledgment: J.…
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from article Star
Hubble Space Telescope images of the star known as V1, which U.S. astronomer Edwin Hubble (the telescope's namesake) discovered in 1923. Hubble used this Cepheid variable to show that a faint, fuzzy patch in the constellation Andromeda is actually…
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from article Star
Hubble Space Telescope image of the Ring Nebula in Lyra, a planetary nebula made of glowing ionized gas that surrounds a hot blue star. [Credit: H. Bond et al., Hubble Heritage Team (STScI /AURA), NASA]
