Massive Stars of 30 Doradus . ... NASA Explanation: In the center of star-forming region 30 Doradus lies a huge cluster of the largest, hottest, most massive stars known. These stars and part of the surrounding nebula are captured here in this gorgeous visible-light Hubble Space Telescope image . Gas and dust clouds in 30 Doradus, also known as the Tarantula Nebula , have been sculpted into elongated shapes by powerful winds and ultraviolet radiation from these hot cluster stars . ...