The first exoplanet that around a solar-type star

That blue dot in the upper right is Gliese 504b (GJ 504b), a giant planet that is 59 light years from Earth orbiting a solar-type star. But what is this special? Have we not already seen several extrasolar planets directly? Yes, but doing a little cheating. And is that exoplanets we have seen directly, as the system HR 8799, for example-are actually training worlds still shine with their own light, especially in infrared. 

Discover the oldest lunar calendar in a field of Aberdeen shire

UK archaeologists have discovered the oldest lunar calendar, found so far, in a field of Aberdeen shire (Scotland). The yearbook is a series of 12 holes that appear to mimic the phases of the moon and the lunar months and is believed chosen about 10,000 years old.

Excavations at the site began a decade ago and the first hole was discovered in 2004. 

Scientists working in Event Horizon Telescope that will see a black hole in detail

An international team of scientists working on the Event Horizon Telescope (EHT) that can combines observations from telescopes around the world (United States, Mexico, Chile, France, Greenland and the South Pole) to see for the first time, to detail, a black hole.

Black holes are invisible to the human eye,