Eta Carinae star system, ultraviolet light image taken with the NASA/ESA Hubble Space Telescope's Wide Field Camera 3. Eta Carinae is a star system located 7,500 light-years from Earth in the constellation Carina. The larger star has undergone violent outbursts, including an episode in the 1840s during which ejected material formed the bipolar bubbles seen in this image. The glow of magnesium embedded in warm gas (blue) resides in the space between the dusty bipolar bubbles and the outer shock-heated nitrogen-rich filaments (red). The streaks visible in the blue region outside the lower-left lobe are created when the star's light rays shine through the dust clumps scattered along the bubble's surface. Wherever the ultraviolet light strikes the dense dust, it leaves a long, thin shadow that extends beyond the lobe into the surrounding gas.