Saturn’s moon Enceladus has geysers shooting tiny grains of ice into space. These grains could hold traces of life − but researchers need the right tools to tell.
When scientists observed planets revolved around the Sun, they posited we were now like other planets. And if other planets were like Earth, then they most likely also had inhabitants.
The surface of Mars is cold, dry and rocky.
NASA/JPL-Caltech/ASU
While NASA rovers on the surface of Mars look for hints of life, researchers back on Earth are studying ‘echoes of life’ from ancient basins – hoping that the two sites might be similar.
Uranus is the coldest planet in the solar system.
NASA/JPL
The space agency hopes to get to the bottom of the many sightings being reported.
NASA’s UAP study team and newly appointed director of UAP research represent growing efforts to study and declassify UFO-related data.
AP Photo/Terry Renn
Months after a military officer made sensational claims about unexplained objects in the skies, NASA released a report loosely outlining a scientific approach for analyzing UAP reports.
The exoplanet K2-18b might host a water ocean.
Credits: Illustration: NASA, CSA, ESA, J. Olmsted (STScI), Science: N. Madhusudhan (Cambridge University)
Alien hunters should learn from the Intergovernmental Panel on Climate Change (IPCC).
UFOs usually have non-extraterrestrial origins, but many have urged the government to be more transparent about UFO data.
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Whistleblower allegations that the government possesses UFOs may not be backed up by public physical evidence, but some argue that listening for extraterrestrial life is the first phase of contact.
A congressional subcommittee on unidentified anomalous phenomena met to hear testimony from military officers.
Sarah Silbiger/Bloomberg via Getty Images
All who testified before a congressional subcommittee claimed that UFOs pose a threat to national security, though there’s still no public evidence that UFOs are extraterrestrial.
SETI has been listening for markers that may indicate alien life – but is doing so ethical?
Donald Giannati via Unsplash
Phosphorus is the most elusive element crucial for life as we know it – and we now have the first evidence there’s some available in the oceans of Enceladus.
There was little time for water from the Earth’s atmosphere to contaminate the meteorite after it fell.
Trustees of the Natural History Museum