Categories: Satellites

How the Fermi Spacecraft Almost Got Taken Out by a Relic of the Cold War

As a space telescope scientist or satellite operator, the last thing you want to hear is that your expensive and possibly one-of-a kind — maybe irreplaceable — spacecraft is in danger of colliding with a piece of space junk. On March 29, 2012, scientists from the Fermi Gamma-ray Space Telescope were notified that their spacecraft was at risk from a collision. And the object heading towards the Fermi spacecraft at a relative speed of 44,000 km/h (27,000 mph) wasn’t just a fleck of paint or tiny bolt.

Fermi was facing a possible direct hit by a 1,400 kg (3,100-pound) defunct Russian spy satellite dating back to the Cold War, named Cosmos 1805. If the two satellites met in orbit, the collision would release as much energy as two and a half tons of high explosives, destroying both spacecraft and creating more pieces of space junk in the process.

But this story has a happy ending, with the Fermi telescope still operating and continuing its mission to map the highest-energy light in the universe, all thanks to a little orbital traffic control.

You can watch the video here for the complete story, or read more at the Fermi website about how the Fermi Space Telescope dodged a speeding bullet.

Nancy Atkinson

Nancy has been with Universe Today since 2004, and has published over 6,000 articles on space exploration, astronomy, science and technology. She is the author of two books: "Eight Years to the Moon: the History of the Apollo Missions," (2019) which shares the stories of 60 engineers and scientists who worked behind the scenes to make landing on the Moon possible; and "Incredible Stories from Space: A Behind-the-Scenes Look at the Missions Changing Our View of the Cosmos" (2016) tells the stories of those who work on NASA's robotic missions to explore the Solar System and beyond. Follow Nancy on Twitter at https://twitter.com/Nancy_A and and Instagram at and https://www.instagram.com/nancyatkinson_ut/

Recent Posts

Multimode Propulsion Could Revolutionize How We Launch Things to Space

In a few years, as part of the Artemis Program, NASA will send the "first…

10 hours ago

China Trains Next Batch of Taikonauts

China has a fabulously rich history when it comes to space travel and was among…

11 hours ago

NASA Focusses in on Artemis III Landing Sites.

It was 1969 that humans first set foot on the Moon. Back then, the Apollo…

12 hours ago

The Connection Between Black Holes and Dark Energy is Getting Stronger

The discovery of the accelerated expansion of the Universe has often been attributed to the…

13 hours ago

Will Advanced Civilizations Build Habitable Planets or Dyson Spheres

Freeman Dyson proposed that advanced civilizations might eventually harvest all the energy coming from their…

16 hours ago

This is What it Sounds Like When the Earth’s Poles Flip

Is there something strange and alien confined deep inside the Earth? Is it trying to…

2 days ago