The potentially disastrous barrier to satellite mobility is the atmosphere of the Earth. Find out more at 🚀
The research and development division of the Pentagon is investigatingpublished on Wednesday.The very low Earth orbit radius is home to a cemetery of defunct spacecraft that satellite operators sent into space to burn up upon re-entry. "You're essentially hanging out in the area where people send their spacecraft to die," according to Caleb Henry, a senior analyst at space analytics firm Quilty Analytics.
Anything below 280 miles is considered to be a very low Earth orbit by DARPA. Henry estimates that the lowest limit is about 124 miles ; however, there is no precise starting point for it.Government and private satellites clog up space, especially in low Earth orbit levels. Compared to satellites in VLEO, DARPA claims that there are fewer dangers of radiation damage and accidents with space junk in those orbit levels.
Daedalus is anticipated to last for at least 51 months and will consist of many awards made under accelerated "other transaction" authority . "Whatever fuel they need, they'll need to carry a lot of it," said Bonnie Triezenberg, senior engineer at RAND, an American nonprofit global policy think tank. Existing satellites and other spacecraft are made of materials that can be harmed by highly reactive atmospheric oxygen, necessitating new materials and techniques for system protection for prospective VLEO operators.
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