Astronomy Picture of the Day . ... On the way to visiting the asteroid 433 Eros in February 1999, the Near Earth Asteroid Rendezvous (NEAR) spacecraft flew right by another asteroid: 253 Mathilde last Friday. ... Ida and Dactyl: Asteroid and Moon . ... This asteroid has a moon! ... The second asteroid it photographed, Ida, was discovered to have a moon which appears as a small dot to the right of Ida in this picture. ... But do GRBs occur in galaxies or out alone in deep space? ... Antares . ...