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Explanation: An asteroid the size of New Jersey that orbits the Sun between Mars and Jupiter has been discovered to have an unusual dog-bone shape. Asteroid 216 Kleopatra, recently mapped with Earth-based radar, reflects radio waves so well that astronomers speculate it is composed mostly of metals such as nickel and iron. The unusual shape and composition of 216 Kleopatra may derive from the central regions of a tremendous collision between larger asteroids billions of years ago. Kleopatra is not completely solid - its surface is loosely consolidated rubble, although its core may contain large solid-metal lodes. Kleopatra will never strike the Earth, but it may one day serve as a valuable source of raw building materials.
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NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: Kleopatra - asteroid
Publications with words: Kleopatra - asteroid
See also:
- APOD: 2026 August 5 Á Spokes on Saturn's B Ring
- APOD: 2026 July 29 Á Psyche Receives Gravity Assist from Mars
- APOD: 2026 June 30 Á Unusually Smooth Sections of Asteroid Itokawa
- 3D Bennu
- Ida and Dactyl: Asteroid and Moon
- Asteroid Donaldjohanson
- APOD: 2025 February 12 Á Asteroid Bennu Holds the Building Blocks of Life