Mars Telecommunications – NASA’s MAVEN spacecraft, a key relay for Mars missions for more than a decade, has effectively ended its role after 11 years—forcing the agency to rethink how future data will get back to Earth. NASA says the Mars Relay Network can absorb MAVEN’s loss with add
For more than 11 years, NASA’s MAVEN spacecraft has been quietly doing one job extremely well: carrying Mars science home.
But the mission is now finished, and the change lands at an inconvenient moment—the Mars orbit relay that depends on it is still working to support the current Curiosity and Perseverance rovers. MAVEN’s absence isn’t expected to shut down communication. It’s expected to change the rhythm.
“Tiffany Morgan. director of NASA’s Mars Exploration Program. said MAVEN supported more than 8 percent of all of our relay sessions planned by our rovers and landers. ” over the life of the mission. Yet it “accounted for nearly 18 percent of all of the data returned. ” Morgan said. underscoring how much heavy lifting MAVEN did when missions had to move large volumes of information.
Morgan also stressed that the network is not running out of bandwidth. “The network still has plenty of capacity to support the Perseverance and Curiosity rovers. with some minor caveats.” Those caveats center on timing and how often enough relay assets are in view to get science data back on schedule.
“We do have remaining assets. and those assets have adjusted the amount of data that they return. and the rovers have also adjusted their planning for how they connect to those assets. ” Morgan said. “There is a slight delay on occasion. because we don’t have as many assets in view. to getting our science data back. and MAVEN was critical in returning science data versus operational data.”.
The key point is that MAVEN’s value was not just that it relayed messages—it was that it helped return science data efficiently, and the network has to make up for that gap. Still, Morgan said the system can handle the transition.
“But the Mars Relay Network is resilient enough at this point in time to accommodate, for the most part, the loss of MAVEN with the added delay.”
NASA is already looking beyond this coping period. The agency is asking commercial companies to build a replacement for the existing Mars Relay Network. The new system is called the Mars Telecommunications Network. and NASA expects it to deliver “higher throughput and broader coverage for NASA’s future missions to the red planet.”.
“This is a deliberate shift,” said Greg Heckler, deputy program manager for capability development at NASA’s Space Communications and Navigation office. “Instead of each mission designing its own communications solution, we’ll build in a more capable architecture deliberately designed for Mars.”
Heckler tied the future plan directly to what NASA learned from MAVEN and the orbiters that followed. “It will be built on the lessons from MAVEN. from the other orbiters. from every mission operating in this environment. including the current rovers. and from some of our growing endeavors around the Moon.”.
NASA wants the Mars Telecommunications Network to be operational by the 2030s. The agency released a request for proposals last month, signaling how quickly it intends to move from lessons learned to new infrastructure.
Heckler described that timeline pressure in plain terms. “I think there’s … urgency,” he said. “I think NASA establishing this infrastructure is going to be very important to continue science operations of the current missions here today and then enable us to execute on these newer. bigger missions yet to come.”.
Right now, the network’s resilience is buying time. The trade is measured in delays and adjusted planning—small changes that still matter when rovers are trying to deliver the next stream of discoveries. And the end of MAVEN’s long relay service is a reminder that Mars science doesn’t just depend on engines and instruments.
It depends on the quiet spacecraft in the right place at the right moment—and on building what comes after them.
MAVEN NASA Mars Relay Network Mars Telecommunications Network Perseverance Curiosity Mars exploration spacecraft communications deep space communications Space Communications and Navigation office
So it just… stops? Space is wild.
I don’t get it, it says the network can absorb the loss but also “timing” is a problem. Is Mars data gonna be late or not? Sounds like late to me.
MAVEN was basically carrying all the pics home, so when it ends it should shut everything down… unless NASA is just moving the backlog to another satellite. “Minor caveats” is never minor lol.
11 years at Mars and it ends “quietly”?? I feel like NASA is always like that. Meanwhile they’re still sending Curiosity/Perseverance stuff so maybe the relay just changes who does what. Also 8% vs 18% returned data sounds like they’re bragging but also admitting it was doing way more than they planned.