Space
The Amazon founder will launch into space about two weeks after stepping down as CEO.
No reason was provided for why Davidson can no longer make the flight.
The "Saturday Night Live" star is about to go where William Shatner has gone before — the edge of space aboard Jeff Bezos' Blue Origin rocket.
The ISS will have a spectacular ending and a watery grave.
WHAT'S HAPPENING
“We’re one step closer to uncovering the mysteries of the universe. And I can’t wait to see Webb’s first new views of the universe this summer!” NASA Administrator Bill Nelson said.
An asteroid that experts say is about as big as two Empire State Buildings is expected to come within 1,231,184 miles of Earth on Jan. 18.
More powerful than the Hubble Space Telescope, the $10 billion Webb will scan the cosmos for light streaming from the first stars and galaxies formed 13.7 billion years ago.
The $10 billion observatory hurtled toward its destination 1 million miles (1.6 million kilometers) away, or more than four times beyond the moon.
Astronauts aboard the International Space Station took shelter in their docked capsules after what U.S. officials called "a debris-generating event."
Canada woman Ruth Hamilton narrowly missed getting hit by a meteorite that crashed through her roof and landed between her pillows.