Brood XIV is one of 15 broods of periodical cicadas that emerge every 13 or 17 years. This map shows all the places they'll ...

In part of Jezero Crater known as the Shenandoah formation, two generations of calcium sulfate minerals formed beneath the ...

How mail is delivered in Oregon will begin changing this month as a deal struck between the USPS and the Trump administration takes effect.

Genera PR, the company that generates power on the island, said the "massive power outage" was due to the shut down of all ...

Arizona's national parks offer majestic views, a forest of towering saguaros and a look back into time with a preserved ...

Here's what to know about whooping cough amid the growing cases.

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