The Chinese military has been accused of interfering with NASA's satellites between 2007 and 2008.
According to AFP, the revelation was made in a report prepared for the US Congress by the US-China Economic and Security Review Commission.
The report informed that hackers were able to gain access to one of NASA's satellites on at least two occasions, allowing them to issue commands. It was revealed that the satellites targeted by the hackers were used to observe earth's terrain and climate.
The hackers were able to gain access to the satellites by breaking into the information systems at the Svalbard Satellite Station, a satellite station in Spitsbergen, Norway.
"Such interference poses numerous potential threats, particularly if achieved against satellites with more sensitive functions," the report said.
"For example, access to a satellite's controls could allow an attacker to damage or destroy the satellite. The attacker could also deny or degrade as well as forge or otherwise manipulate the satellite's transmission," it added.
Apart from the attack on NASA satellites, the report also accused the Chinese military of being behind a lot of cyber attacks in the recent past.