| International Cometary Explorer (ICE) |
| A spacecraft, originally known as ISEE-3 (International Sun-Earth Explorer) when it was launched in 1978, which was diverted and reactivated in order to pass through the tail of Comet Giacobini-Zinner in September 1985, and to observe Halley's Comet from 28 million kilometres (17 million miles) in March 1986. |