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APOD

Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

See Explanation. Clicking on the picture will download the highest resolution version available.

Nearer To Asteroid Eros

Explanation: As the robot spacecraft NEAR lowers itself toward asteroid 433 Eros , more surface details are becoming visible. Last week's maneuvers brought NEAR to within 204 kilometers of the floating mountain's surface . With increased resolution, NEAR's camera then documented Eros' unusual shape , craters large and small, boulders , and mysterious grooves similar to asteroid Gaspra and Martian moon Phobos . If you could stand on Eros , you would still be too small to be visible on this recent image , which shows features as small as 20 meters across. However, you would feel gravity only 1/1000 that on Earth , so that you could easily jump over even this large 5 kilometer wide crater.

Date March 8, 2000
Credit Credit: NEAR Project , JHU APL , NASA
Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
A service of: ASD at NASA / GSFC,
NASA Science Activation & Michigan Tech. U.