美国宇航局局长认为宇宙中存在智慧生命
© Provided by Daily Mail MailOnline logo
NASA Administrator and former astronaut Bill Nelson believes it's likely that humans will get some kind of indication that intelligent life outside of our own exists in the universe.
The 78-year-old former US Senator told CNBC's Shepard Smith that it's likely that life exists in the universe, pointing to its age and expanse as potential reasons for intelligent life to exist.
'If you have a universe that is 13.5 billion years - it is so big - is there another chance for another sun and another planet that has an atmosphere like ours?' Nelson said.
'I would say yes, so I think we're gonna get some indication that there is intelligent life out there.'
He added that NASA has been 'involved for years' looking for life, referring to NASA's Astrobiology program.
'We're looking for life on Mars, on the other planets, in the cosmos, trying to determine other suns that have planets with a habitable atmosphere,' Nelson pointed out.
Nelson's comments on the subject are the second time in less than two weeks he has said humans may not be alone in the universe.
After the release of the Pentagon's report on unidentified aerial phenomena last month, Nelson said that he had seen the classified version and believes 'there is clearly something there.'
'We don’t think [it is an adversary], but when it comes to universe, remember the universe is so large, we have a program in NASA called the Search for Extraterrestrial Intelligence,' Nelson told CNN in late June.
'But thus far, we don’t have any receipt communication from something that’s intelligent.'
June's long-awaited report from the Pentagon on the subject of 'unidentified aerial phenomenon' (UAPs) offered no explanation for 143 of the 144 observations dating back to 2004.
The declassified report, which came from the Office of the Director of National Intelligence, added that it lacks sufficient data to determine the nature of mysterious flying objects.
'In 18 incidents, described in 21 reports, observers reported unusual UAP movement patterns or flight characteristics,' the report reads.
'Some UAP appeared to remain stationary in winds aloft, move against the wind, maneuver abruptly, or move at considerable speed, without discernable means of propulsion. In a small number of cases, military aircraft systems processed radio frequency (RF) energy associated with UAP sightings.
'The UAPTF holds a small amount of data that appear to show UAP demonstrating acceleration or a degree of signature management. Additional rigorous analysis are necessary by multiple teams or groups of technical experts to determine the nature and validity of these data.
'We are conducting further analysis to determine if breakthrough technologies were demonstrated."
© Provided by Daily Mail (© Provided by Daily Mail
The term UFO has been more recently replaced by unidentified aerial phenomenon, especially in light of the U.S. Pentagon declassifying three videos in April 2020.
The footage had been previously acknowledged as real by the Navy, and captured what pilots recorded on their video sensors during training flights in 2004 and 2015.
Two of the clips were first published in 2017 by the New York Times and the third by the To The Stars Academy in 2018 - a group that specializes in unexplained phenomenon and was founded by Blink-182 guitarist Tom DeLonge.
Only one of 144 reports of UFOs - or Unidentified Aerial Phenomena as the government calls them - can be explained while the others can barely be classified
The government report says there are 144 reported UFOs - or UAPs - between 2004 and 2021.
These reports include a spherical flying object buzzing over Navy warships and disappearing into the Pacific ocean, a tic-tac shaped flying object mimicking Super Hornet pilots' maneuvers and pyramid-shaped flying objects.
The only one that can be explained with 'high confidence' is a deflated balloon.
Because the reported UAPs showed unusual flight characteristics and displayed a range of appearances and behaviors, the report groups the UAPs into five categories.
1. Airborne clutter - These objects include birds, balloons, recreational unmanned aerial vehicles (UAV) or airborne debris like plastic bags that muddle a scene and affect an operator’s ability to identify true targets, such as enemy aircraft.
2. Natural atmospheric phenomena - Natural atmospheric phenomena includes ice crystals, moisture and thermal fluctuations that may register on some infrared and radar systems.
3. USG or U.S. industry developmental programs - Some UAP observations could be attributable to developments and classified programs by U.S. entities. The report states, 'We were unable to confirm, however, that these systems accounted for any of the UAP reports we collected.'
4. Foreign adversary systems - Some UAP may be technologies deployed by China, Russia, another nation, or a non-governmental entity but the report says the US is unaware that any nation has technology that's been reported.
5. A catchall 'other' bin - Most of the UAP described in the dataset probably remain unidentified due to limited data or challenges to collection processing or analysis and may require additional scientific knowledge and advances to categorize them. 'The UAPTF intends to focus additional analysis on the small number of cases where a UAP appeared to display unusual flight characteristics or signature management,' according to the report.
选择“Disable on www.wenxuecity.com”
选择“don't run on pages on this domain”
