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Sep 10, 2021 · Watch on. Do aliens exist? This is a really interesting question and one that NASA has been trying to understand, explore, and figure out for a long time. We have not yet discovered life on any other planet, and we have not seen any scientifically supported evidence for extraterrestrial life.
- Is E.T. Phoning Us from Proxima Centauri?
- Alien Bacteria Might Live in The Clouds of Venus
- 'Oumuamua Could Still Be An Alien Artifact
- Navy Declassifies UFO Videos But Don't Believe The Hype
- Milky Way Could Be Teeming with Ocean Worlds
- Earth Bugs Breathe Hydrogen, Maybe Aliens Do Too
- Life Could Live Around A Black Hole
- 1,000 Places et Could Be Watching Us from
- Most Aliens Are Probably Dead
- We Should Be Open-Minded as We Search For Life Elsewhere
The answer to weird signals happening in the universe is never aliens, until maybe it is. Earlier this month, researchers announced that they had captured a very mysterious beam of energy in the radio part of the electromagnetic spectrumat 980 megahertz, coming from the closest star to our own. Proxima Centauri, which is just 4.2 light-years away, ...
Astrobiologists were a-twitter with anticipation and skepticism in September when news broke of potential evidence of life in the upper clouds of Venus. The announcement pointed to the presence of phosphine, a rare and often poisonous gas that, on Earth at least, is almost always associated with living organisms. With its hellish surface temperatur...
Two years ago, scientists spotted a cigar-shaped object hurtling through the solar system. Dubbed 'Oumuamua, the entity is considered by most to be an interstellar comet flung out from around another star. But close observations showed that 'Oumuamua was accelerating, as if something were propelling it, and scientists still aren't sure why. Avi Loe...
A fair number of Earthlings don't care what ambiguous evidence scientists come up with to show that aliens are out there. They are convinced that we've been visited by technological beings many times, pointing to stories about UFOs and alien encounters (pretty much all of which have been debunked). True believers received a boost in April when the ...
Ocean worlds, which are classified as those having significant amounts of water on or just beneath their surfaces, are surprisingly common in the solar system. Earth is obviously one such place, but Jupiter's moon Europa is thought to host vast seas under its icy shell and Saturn's moon Enceladus is known to have watery geysers spewing from its ext...
Most Earthlings require oxygen to survive. But oxygen isn't common in the cosmos, making up about 0.1% of the ordinary mass of the universe. There's far more hydrogen (92%) and helium (7%), and many planets, including gas giants like Jupiter and Saturn, are made mostly from these light elements. In May, scientists took E. coli (a bacteria found in ...
When hunting life on other worlds, most scientists stick to what they know — searching for Earth-size worlds orbiting sun-like stars. But far more exotic configurations could exist such as a planet circling around and heated by a black hole. At first glance, such a scenario seems absurd. But, contrary to popular depictions, black holes don't just s...
As we hunt for beings beyond our planet, it's important to keep in mind that we might not be the only ones doing so. In October, researchers came up with a catalog of 1,004 nearby stars that would be in a good position to detect life on Earth. "If observers were out there searching [from planets orbiting these stars], they would be able to see sign...
Where there's life, there's also death. While we like to imagine that our galaxy is teeming with technological beings capable of contacting us, the flip side is recognizing that all cultures rise and fall, meaning that plenty of cosmic societies likely bit the dust long ago. A model released in December put some numbers to these truths, taking into...
The human brain has plenty of constraints. We are misled by cognitive biases, optical illusions and inattentional blindness to things we don't expect to see. One question that has always dogged research into alien creatures is whether or not we could recognize life that is so different from what we encounter here on Earth. Scholars have long urged ...
Oct 28, 2023 · There's no scientific evidence for aliens in the declassified UFO videos, in mutilated cows whose injuries are blamed on extraterrestrial activities or in purported alien bodies. Nor is there...
- Patrick Pester
Nov 25, 2023 · Absence of evidence, as everyone knows, is not evidence of absence. Aliens may not consider radio waves to be a useful or dignified way to communicate. They could be pathologically shy.
Jun 13, 2021 · If the Times’s sources are to be believed, there’s clearly still no good reason to interpret an unexplained object in the sky as evidence of aliens.
Sep 4, 2006 · 1. 1976, The Viking Mars landers detect chemical signatures indicative of life. Tests performed on Martian soil samples by NASA’s Viking landers hinted at chemical evidence of life. One...
Jan 18, 2021 · By Elizabeth Kolbert. January 18, 2021. Encountering aliens would be surprising; the fact that we haven’t yet heard from any is perhaps even more so. Illustration by Paul Sahre. On October 19,...