And in future, tracking the glow may help reveal how cancer cells behave when a tumour starts spreading cancer around the body.
"It should be possible to do total population counts and in the future track the trajectory of those populations," he told the Inside Science programme on BBC Radio 4. The breakthrough is in part down to the capability of the latest hi-res satellites.
They don't mention this anywhere, but you can see it for a split second when you open the short URLs (the team told me the main benefit is for iPhone app developers to better brand links to their apps and in the future track conversion for clicks/sales).
Initially there was uncertainty in its future track, and the hurricane posed a threat to Texas; however, Ella turned to the west as its intensification rate slowed.
While intensifying as a tropical storm, the National Hurricane Center faced difficulties in the future track of Jeanne, based on two major divergences between computer hurricane models.
The agency noted uncertainty in the future track of the storm, due to interaction with Tropical Storm Eric east of Madagascar, and Fanele was located within an area of weak steering currents.
By that time, there was uncertainty in its future track due to the possible interactions among Iris, Humberto to the northeast, Tropical Storm Karen to the southeast, and the remnants of Tropical Storm Jerry to the west.
One fear is that if, in future, it tracks down important al-Qaeda figures, it may prefer one of two bleak options: either turn them over to countries with far fewer qualms or just drop a bomb on them.
In future, fast-track diagnosis and treatment will be provided for suspected cancers and access to general diagnostic investigations will be improved.
