WHY WAS THIS FUNDED?

NASA regularly funds Earth science missions to study our planet using satellites, authorized under federal space and science policy. This award supports NASA's Earth Science Division, which is directed by Congress to monitor environmental changes that affect the United States and the world.

WHAT PUBLIC PROBLEM IS IT TRYING TO SOLVE?

Scientists and water managers need accurate, up-to-date data on how freshwater supplies, glaciers, ice sheets, and sea levels are changing over time. Without reliable measurements from space, it is harder to predict droughts, floods, and rising sea levels, which affect communities across the country.

WHO BENEFITS?

Scientists, government agencies, farmers, water utilities, emergency managers, and coastal communities all benefit from better data on water and ice changes. Caltech researchers and engineers, along with their contractors and partners, also benefit directly from the jobs and research opportunities this funding creates.

WHAT ARE THE RISKS?

At $445 million over roughly seven years, this is a large, long-term commitment, and space missions in early planning stages sometimes see cost overruns or delays that increase the final price. The contract type is listed as unknown, which makes it harder to assess how costs and performance will be monitored and enforced.

WHAT HAPPENS IF FUNDING IS REMOVED?

If this contract were cancelled, the Mass Change satellite mission would likely be delayed or stopped entirely, leaving a gap in Earth observation data that other instruments may not be able to fill. The United States could fall behind in tracking critical changes to global water and ice, reducing the data available to planners and scientists.

ARGUMENTS FOR

• •Accurate satellite data on water and ice changes helps communities better prepare for droughts, floods, and rising seas, which have real costs for American lives and property.
• •Building on proven satellite programs like GRACE (Gravity Recovery and Climate Experiment), this mission continues a scientific record that researchers worldwide depend on.
• •Funding Caltech and its partners supports high-skilled engineering and science jobs and keeps U.S. space technology competitive globally.

ARGUMENTS AGAINST

• •At $445 million, this is a very large investment for an early-stage planning effort, and the final mission cost could grow significantly before a satellite ever launches.
• •The contract type is unknown, which raises questions about oversight and whether taxpayers are protected if costs rise or goals are not met.
• •Some critics argue that private companies or international partners could share or lead this kind of Earth observation work, potentially reducing the burden on U.S. taxpayers.