It’s no secret that the summer can take its toll on our skin. Anyone who has been badly sun burnt can attest to the pain and discomfort that a day of unprotected sun exposure can cause. However, the sun’s rays can also cause long term damage that’s not immediately evident, such as ageing, winkles and sometimes even skin cancer.
With the changeable British summer now in full flow and many of us preparing to jet off to warmer climes, The Harley Street Clinic’s team of expert dermatologists is encouraging everyone to find out how to look after their skin. To help with this Dr Iaisha Ali, Consultant Dermatologist at The Harley Street Clinic, has revealed her top tips for staying safe in the sun this summer. Find out more about our summer safety tips .
When found, asteroids were seen as a class of objects distinct from comets, and there was no unified term for the two until "small Solar System body" was coined in 2006. The main difference between an asteroid and a comet is that a comet shows a coma due to sublimation of near surface ices by solar radiation. A few objects have ended up being dual-listed because they were first classified as minor planets but later showed evidence of cometary activity. Conversely, some (perhaps all) comets are eventually depleted of their surface volatile ices and become asteroid-like. A further distinction is that comets typically have more eccentric orbits than most asteroids; most "asteroids" with notably eccentric orbits are probably dormant or extinct comets.