But for every C-type asteroid
relocated to the belt, at least 10 were sent careening into the region where the rocky planets were materializing.
The primary objectives of Hayabusa 2 are to explore a C-type asteroid
believed to be rich in water and organic matter, return samples to earth and delve into the origins and evolution of the solar system.
It should arrive at the C-type asteroid
in mid 2018, staying around there for one and half years before leaving the asteroid at the end of 2019 and returning to Earth around the end of 2020," said the Japanese space agency.
Spear highlighted the following attributes of Nereus that could make it such an appealing project: it is a C-type asteroid
about 1 km in diameter with a well-known orbit between Mars and Earth.
This is a C-type asteroid
, and those are thought to be representative of the primordial materials from which our solar system was formed," said Wilson.
Recently, it was announced that the C-type asteroid
(24) Themis has been found to harbour water ice on its surface (H.
The uniformity indicates that the rock, classified as a C-type asteroid
because it contains carbonaceous material, is a pristine relic of the early solar system.
Dr Rita Schulz, the Rosetta project scientist, said: "It has an interesting surface and from the look of it, I would say it is more of a C-type asteroid
- but we can't really say anything yet.
are especially useful in this respect as they show a fairly featureless spectrum of uniform reflectance vs.
Moreover, c-type asteroids
could be resources for future space exploration.
The most common ones - carbon-rich C-type asteroids
- reflect only 3 (percent) to 5 percent of the light that hits them,'' he said.
Corrections were calculated using the (B-V) values shown in parentheses typical of C-type asteroids