Nearly 300 current and former NASA employees — including astronauts, engineers and scientists — have signed the "Voyager Declaration," a formal statement raising alarm over recent actions and steep budget cuts proposed by the Trump administration.

NASA faces a proposed $6 billion agency-wide funding cut by the Trump administration, including a 47% reduction of science missions and activities.

More than 200 current and former NASA employees have signed an open letter known as the Voyager Declaration pushing back on "harmful" proposed cuts.