Forming planets observed by the ALMA telescope
In September 2014, ESO’s ALMA (Atacama Large Millimeter/submillimeter Array) telescope began the long baseline campaign, the one with the antennas separated by the maximum length achieved so far, which is 15 km away (a little more than 9 miles). In this mode, more powerful than before, ALMA observed with great results HL Tauri, a young star about 450 light years from Earth. It’s surrounded by a disk of dust that is slowly coalescing in certain areas to form planets.



