The Earth is under assault. Space rocks are constantly hurtling towards us, slamming into the atmosphere and often exploding into fireballs that both delight and alarm.
BBC Sky at Night Magazine on MSN
17 things commonly mistaken for UFOs
Think you've seen a UFO in the sky? Consider the following ...
A powerful M5.7 solar flare erupted from the sun on May 10, unleashing an impressive coronal mass ejection (CME) that could ...
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