Latest Giotto mission Stories
The dramatic appearance of Halley's comet in the night sky has been observed and recorded by astronomers since 240 BC.
The latest analysis of data from NASA's Deep Impact spacecraft shows that comet 103P/Hartley 2 is hyperactive in terms of the material it spews out, compared to the other comets observed up close to date.
Twenty-five years ago, ESA's Giotto spacecraft made its mark in deep space.
British scientists have identified a new candidate for the biggest comet measured to date.
NASA researchers and scientists from the United States, Germany and Japan have found a new mineral in material that likely came from a comet.
Comet -- A comet is a small body from the outer reaches of the solar system similar to an asteroid but composed of ice. Often described as "dirty snowballs," they are composed largely of carbon dioxide ice, methane ice, and water ice with a mixture of dust and small stony aggregates mixed in. Comets are thought to be small pieces of debris left over from the formation of the solar system, representing a sample of the original composition of the nebula that condensed to form the Sun and all...
- In the month which preceded the present; in the last month, as distinguished from the current or present month and all others.