If Donald Trump dredges up former President Bill Clinton's history of extramarital affairs to use it against his Democratic rival, it could be a risky move the GOP nominee amid the new storm he stoked over his own comments about and treatment of women.

Visiting a museum full of airplanes and rocket ships is a pretty awesome field trip. Now imagine camping out for a whole night in Smithsonian's huge hangar outside Washington D.C. You're there with a few other lucky kids, some grownups, and aviation treasures like the space shuttle Discovery.

The U.N. is planning to launch its first space mission into orbit, packed with scientific experiments from countries that can't afford their own space programs.

It's teaming up with the Sierra Nevada Corporation, which makes the Dream Chaser, a reuseable spacecraft that, when it returns from orbit, can land at an ordinary airport. They formally announced the plans this week at the International Astronautical Congress in Guadalajara, Mexico.

On Friday, police released two videos of Tuesday's fatal shooting of an unarmed black man by officers in the San Diego suburb of El Cajon, Calif. Ugandan immigrant Alfred Olango was killed after, police say, he was uncooperative and refused to remove his hand from his pocket, then took what officers saw as a threatening position.

Olango's death led to almost immediate protests that lasted much of the week and grew progressively larger and angrier. The police say that by Thursday night two civilians had been assaulted and crowds had thrown bottles at officers.

Both Hillary Clinton and Donald Trump released their medical records earlier this month, and now it's Libertarian nominee Gary Johnson's turn to boast that he is "extremely physically fit."

The letter from the former New Mexico governor's physician, Dr. Lyle B. Amer of Santa Fe, explains that the 63-year-old Johnson's "decades of dedication to physical fitness, diet, no drinking, and no smoking have paid dividends as far as his current extraordinarily good health at this time of his life." (We'll come back to that smoking line).

It's been one year since health officials in Michigan warned people in the city of Flint to stop drinking the tap water after a research team from Virginia Tech discovered elevated lead levels.

To this day, Flint's water is still not safe to drink without a filter. While funding has been scarce to replace corroded pipes, Congress reached a deal this week that could send millions of dollars in aid to Flint.

On Friday, New Orleans received new flood maps from the Federal Emergency Management Agency. Overnight, more than half the population moved out of the so-called high-risk zone.

But with half the city at or below sea level and memories of massive flooding after Hurricane Katrina 11 years ago, some residents are worried these new maps send the wrong message.

Grammy- and Emmy-winning conductor, pianist, composer and arranger Lee Musiker has long worked with leading jazz, classical, pop and Broadway performers. He conducted the Chicago Symphony Orchestra and the National Orchestra in the U.S. and Canada. His work can also be heard on the soundtracks of major Hollywood films.

Musiker brings a wealth of knowledge to this 2005 episode of Piano Jazz, on which he performs "Fascinating Rhythm" with host Marian McPartland.