Patchy clouds in the west and clear skies in the east. That is the current weather forecast, not for anywhere on Earth, but for a much more distant world in another solar system. For the first time, astronomers have been able to map cloud patterns on such a far-away exoplanet, it was announced on September 30, 2013.
The planets and moons in our Solar System come in a wide variety of colours, and the natural beauty can be breathtaking. Now, the true colour of a much more distant planet has been seen for the first time – and it’s blue!
The Kepler space telescope has been nothing short of incredible, revolutionizing our understanding of exoplanets and showing just how common and diverse they really are (as the saying goes, truth is stranger than fiction). Recently, however, additional mechanical problems have started plaguing the mission, threatening to cut it short. The news during the past few weeks has been pessimistic, declaring that Kepler’s planet-hunting days are all but over. But there is still hope, as announced by the mission’s engineering team, that further testing later this month can help to resolve the situation.
There is some exciting news today regarding exoplanets – for the first time, multiple planets have been found orbiting within the habitable zone of their star, the region where temperatures can allow liquid water to exist on planets with rocky surfaces, like Earth. The news release was published this morning by the European Southern Observatory (ESO).
So far, thousands of exoplanets and exoplanet candidates have been found orbiting other stars. As well, astronomers have seen some exoplanets still in the process of formation, providing clues as to how our own solar system came to be. One of these recent “planet-under-construction” findings however is challenging current theories on planetary formation – it’s a planet which “shouldn’t be there” according to conventional wisdom.
There is some more exciting news from the Kepler space telescope mission – as announced in a NASA press briefing this morning, three more planets have been detected orbiting in their stars’ habitable zones. Larger planets have been found already in this zone around various stars, but what makes this newest discovery so compelling is that these new planets are the smallest found so far in this zone, so-called “super-Earths.” Two of them may even be covered by oceans!