Science news articles about 'giant comet'
Exploding Asteroid Theory Strengthened By New Evidence Located In Ohio, Indiana
... life on the planet altered 12,900 years ago by a giant comet exploding over Canada? New evidence suggests the answer is affirmative. The timing attached to this theory of about 12,900 ...Wild Fireworks Spotted in Space
New image of a gaseous space nebula reveals tens of thousands of giant comet-like knots raining down.