For over 20 years people have discovering fully formed planets around other stars. Now in a proto-planetary disk around star HL tau some 450 lightyears away and only 1 million years old, there has been found what maybe the early stages of planetary formation. The Karl G. Jansky VLA telescope has found a 3 to 8 Earth mass clump This was done in the radio part of the electromagnetic spectrum. because shorter wavelengths like visible light is scattered by the dust in this giant dust cloud and radio waves just goes around the dust. This might help in the understanding how planets are formed and how solar systems evolve over time.
March 17, 2016
New evidence in how planets are formed
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