The U.S. government was partially shut down on Monday.

More than 800,000 government workers were forced to stop working.

They won’t get paid during the shutdown.

More than 400 public sites that are run by the federal government were closed.

They include national parks, monuments such as the Statue of Liberty in New York, historic sites, lakeshores and walking trails.

About 97 per cent of NASA employees will be sent home during the shutdown, according to The Washington Post newspaper.