Here's a roundup of news trending across the nation and world today.

What to know now:

1. Obama to speak: The Democratic National Convention enters its third day with some big names set to appear on the stage. President Barack Obama and Vice President Joe Biden will speak, as will Tim Kaine, Hillary Clinton's choice for a running mate. On Tuesday night, former President Bill Clinton spoke of his wife's life in public service, hours after she became the first woman to win a major party's nomination for president.

2. Trump on Reddit: Donald Trump will participate in an "Ask Me Anything" forum on Reddit tonight, opposite the goings-on at the Democratic National Convention. Trump will take questions during the AMA beginning at 7 p.m. ET. Reddit Users are allowed to submit any questions they want to ask Trump.

3. Climate change and bases: A report set to be released Wednesday warns that the size of military bases along the East Coast and the Gulf of Mexico are in danger of shrinking due to rising sea levels. The Union of Concerned Scientists say climate change which results in changing sea levels will endanger those bases on or close to the water.

4. Treasure hunter found: The remains of a man who left his home six months ago in search of buried treasure have been found in New Mexico. Randy Bilyeu set out to look for a box with gold and jewels that was reportedly buried by author Forest Fenn. He was reported missing  about a week later, and authorities launched a search, but found only his raft and his small dog. According to Fenn, the treasure, buried in a small box, is worth $2 million. Thousands have searched for the box since Fenn wrote about it in his 2011 memoir, "The Thrill of the Chase."

5. iPhone release date: Looking for a new iPhone? May want to wait until the week of Sept. 12, at least according to Evan Blass who leaked details of the release of Apple's newest version of its iconic phone. According to Blass, the phone would hit the shelves on Sept. 16. No word from Apple, though.

And one more

Keshia Knight Pulliam, who starred as Rudy on "The Cosby Show,"  and her new husband, Ed Hartwell, are divorcing. The announcement comes days after another announcement  from Pulliam – that she and Hartwell are expecting a daughter in January. The couple were engaged on New Year's Eve, and married weeks later in January.  Hartwell is a former NFL star.

In case you missed it

Not what you may have expected Jack to fetch.