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Even with an entire universe to explore, our own solar system is still full of mysteries. Welcome the newest members of our space family, found only recently in the "no man's land" beyond Neptune.

Could we have finally made contact with a far-away alien civilization? Probably not, but astronomers engaged in the search for extraterrestrial intelligence (SETI) have picked up a "strong" signal about 64 light years away. Best-case sci-fi scenario, the signal is from an advanced extraterrestrial race. Worst case, it's just an anomaly.

President Barack Obama on Tuesday reduced the prison sentences of more than 100 Americans convicted of drug crimes, the second large batch of commutations this month.

Some mega-adorable pictures of a set of grandparents wearing matching outfits were posted to Twitter last night, and we honestly can't get enough.

Governor Chris Christie on Tuesday vetoed a bill that would have gradually raised the state's current minimum wage of $8.38 to $15 by 2021.

They appear after shark attacks, marathons, earthquakes and even terrorist attacks like the one in Paris last year. And they have appeared en masse most recently in images of migrants and refugees attempting deadly crossings of the Mediterranean Sea to reach Europe.

Add Tony Stewart to the chorus of sports figures weighing in on Colin Kaepernick, who recently sat in protest during the national anthem during an NFL preseason game.

Sen. Tim Kaine leaned further into the role of vice presidential attack dog Tuesday, suggesting Donald Trump wouldn't stand up to a potential Russian hack of the American election.

The private space company has been determined to master landing its rockets after launch so they can be reused later -- rather than just discarding them after a mission. SpaceX has succeeded in landing five rockets since December 2015, and CEO Elon Musk said earlier this year that he's ready to put one of them back in space.

A truck bomb exploded Tuesday outside the Somali presidential palace and the popular Somali Youth League Hotel in Mogadishu, police told CNN.

Gene Wilder and Gilda Radner's first meeting was like a scene out of a romantic comedy, complete with a funny kicker. In fact, the same can be said of much of their Hollywood romance.

Former Reagan solicitor general Charles Fried: Clinton was right to call out Trump for his ties to the extreme right

Uber wants to tell a better story about its business -- and it's nabbed a top marketing exec to do so.

Donald Trump Jr. defends his father's immigration position ahead of the Republican presidential candidate's detailed policy speech this week, saying the real estate mogul "wasn't softening on anything."

Mark Baum believes the relentless EpiPen price hikes are "shameful" and his company is plotting a $100 alternative for the lifesaving allergy treatment.

Katie Quinn rises before dawn to attend a sober morning rave.

CNN's Richard Roth explains who John Hinckley Jr. is, and why he says he attempted to assassinate President Ronald Reagan.

Experts are skeptical, but say that if the signal is artificial, it was likely made by a civilization more advanced than our own.

Chance the Rapper couldn't contain his enthusiasm when Beyonce crashed his backstage interview at the MTV Video Music Awards.

A prominent African-American pastor who supports Donald Trump apologized Tuesday for a tweet featuring a cartoon of Hillary Clinton in blackface, but said he stood by the message he was trying to convey that Democrats take black voters for granted.