Enjoy a screening under the stars of the 2013 film Gravity, starring Sandra Bullock and George Clooney as astronauts who are stranded in space after the mid-orbit destruction of their space shuttle, and their subsequent attempt to return to Earth.

The Parks Conservancy and Chronicle Books are delighted to invite you to the Golden Gate Bridge Welcome Center on Sunday, Oct. 13, from 11 a.m.-1 p.m., for a book signing and launch with acclaimed author Elizabeth Partridge for her latest release, "Golden Gate: Building the Mighty Bridge."

Join the partners of One Tam for a day of service on our beloved mountain.

Help restore natural areas and create important wildlife corridors in the Presidio of San Francisco.

Help restore natural areas and create important wildlife corridors in the Presidio of San Francisco.

Help restore natural areas and create important wildlife corridors in the Presidio of San Francisco.

Help restore natural areas and create important wildlife corridors in the Presidio of San Francisco.

Help restore natural areas and create important wildlife corridors in the Presidio of San Francisco.