In practice, the observations provided only a lower limit for distance.

Currently, however, these observations do not provide a clear picture of what a dark matter particle looks like.

"Only further observations can provide us with the information to assess the potential danger," he added.

These observations can then provide excellent research opportunities for school projects and reports.

That observation provides a warning for research on stem cells, she added.

Scientists said the observations could provide important clues to when and how the lights came on all over the cosmos.

Observation of the 2-neutrino mode does not provide information about neutrinos, though it is interesting for nuclear theory.

An observation is distributed as and therefore provides evidence about the state of nature .

These observations provide powerful constraints on attempts to model the global carbon cycle.

Researchers hope that observations of behaviour within the hive will provide an answer.