Watch live coverage as 'Star Trek' actor William Shatner goes to the edge of space on a private Blue Origin flight. If successful, Shatner, who is 90 years old, will be the oldest person to reach space.

Several myths circulated that Haym Solomon negotiated, as return for his assistance in the Financing of the War of Independence, presence on the Seal of the United States. A close look at the one dollar bill reveals that is not the physical star that is present but the formation of the stars of the ...

Yves Rossy has completed his flight over the Grand Canyon. He jumped out of a helicopter at 2,440 metres (8,000 feet) and soared over the Canyon at 330 km (205 mph) for eight minutes before deploying his parachute.
"My first flight in the US is sure to be one of the most memorable experiences in my...

Yom Ha'atzmaut (Hebrew: יום העצמאות‎ Yōm hā-ʿAṣmāʾūṯ lit. "Independence Day") is the national day of Israel, commemorating the Israeli Declaration of Independence in 1948. It is celebrated on 5th of Iyar according to the Hebrew calendar. Yom Ha'atzmaut is preceded by Yom Hazikaron, the Israeli Fal

Nicholas Kristof shares the story of an immigrants who, at age 16, immigrated to the United States. Years later, his country of origin was put on a list of enemies of the US.

As part of the show's 50th anniversary, Cookie Monster, Bert, Count Von Count and Abby Cadabby talk with Axios' Ina Fried about some of the interesting people they've met over the years.

New Horizons is the first mission to the Kuiper Belt, a gigantic zone of icy bodies and mysterious small objects orbiting beyond Neptune. This region also is known as the “third” zone of our solar system, beyond the inner rocky planets and outer gas giants. Johns Hopkins University Applied Physics L

First Lady Michelle Obama stopped by The Ellen DeGeneres Show this week and, knowing Ellen is a big fan of dancing, challenged the comedian to learn the #GimmeFive dance to help mark the fifth anniversary of her healthy life campaign Let's Move! Watch the two break it down to "Uptown Funk,"

Holocaust survivor Inge Auerbacher describes why it's important for the United States Holocaust Memorial Museum to preserve the evidence of the Holocaust to teach future generations.

By the end of 2011 the world will have reached 7 billion people. The United Nations Population Fund is leading an innovative global campaign to bring awareness to the opportunities and challenges that this milestone presents.