The National Aeronautics and Space Administration (NASA) denied, Tuesday, that a hacking group was able to access one of the space agency's drones.

On Sunday, in a post on Pastebin, an Anonymous hacking collective-affiliated group called AnonSec claimed to have breached NASA. The data they have uploaded online contained 150 GB-worth of drone logs, emails, and numbers of 2,400 staff.

AnonSec also claimed that one of NASA's Northrop Grumman Global Hawk drone was controlled semi-partially by the group when it was flying over the Pacific, Forbes reports.

The claims prompted an investigation by NASA but the space agency, however, brushed off the hacktivist's claim.

NASA told Forbes: "Control of our Global Hawk aircraft was not compromised. NASA has no evidence to indicate the alleged hacked data are anything other than already publicly available data. NASA takes cybersecurity very seriously and will continue to fully investigate all of these allegations."

Indeed, the space agency has more than 30,000 datasets on its Open Data websites. It is also possible that this public information could be used by hackers as their data collected from internal systems.

According to the same report on Forbes, the group admin said that they chose to penetrate the cybersecurity of the agency just "for the thrill of hacking NASA." They added, "We initially bought access for fun because we wanted to look around NASA systems. Then once we propagate through the network we eventually stumbled upon a couple Flight Research Centers."

BGR also reported that the AnonSec's reason is also because of the space agency's climate engineering and geoengineering work, citing cloud seeding as one of their examples.

It can also be remembered that there was also a breach in NASA before that gained worldwide media attention. In 2001, British hacker Brit Gary McKinnon penetrated the agency's network because, as what he claimed, he was searching for evidence of UFOs.