Supernovae, or exploding stars, are relatively common. But now astronomers have observed a baffling new type of cosmic explosion, believed to be some 10 to 100 times brighter than an ordinary supernova.
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Some people think Mercury is called elusive because it's faint. But it's not faint. Its brightness might surprise you. Instead, Mercury is called elusive because – as the innermost planet in our solar system – it stays near the sun in our sky. Watch for it near the sunset point.
If you missed the moon and Mars these past few evenings, look again tonight. The moon will rise in the east in mid-evening (between your local sunset and midnight).
