To the amazement of astronomers that the comet of ice and rock had survived near the sun's surface, millions of degrees, only losing its tail temporarily. Estimates have Comet Lovejoy on a return path every 600 years. | To the amazement of astronomers that the comet of ice and rock had survived near the sun's surface, millions of degrees, only losing its tail temporarily. Estimates have Comet Lovejoy on a return path every 600 years. |