Dr. Lisa Kaltenge, a former NASA scientist, has made revelations about aliens in her book ‘The Worlds that Shook Science’. Told on which planets there could be aliens

Various claims are made regarding the presence of aliens. Sometimes there is talk of his spacecraft being seen, and sometimes of his landing on earth. But no one can say with certainty whether aliens exist or not. But now scientists of the American space agency NASA have made a sensational revelation about them. According to him, aliens might be in a place where the sun never rises. Or a place where hot lava is spreading.

According to the report of Daily Mail, Dr. Lisa Kaltenge, a former NASA scientist, has revealed this in a book titled ‘The World that Shook Science’. He said, we first discovered the planet in 1992. Since then more than 5000 exoplanets have been discovered. Of these, there are 70 planets where things capable of supporting life are present. However, some of these are 17,000 light years. That is, so far that if the fastest man-made rocket goes, it will take 69 lakh years to reach. Despite this, identification of aliens at that place is not only difficult but impossible.

we may not recognize them
Dr. Lisa said, the search for aliens is very difficult. Because it may also happen that even when they are in front of us and staring at us, we may not recognize them. However, according to the Planetary Habitability Laboratory of the University of Puerto Rico, there are 29 exoplanets where the possibility of existence of life is very high. These are just like the earth. But Proxima Centauri is a place where aliens could be. Located 4.25 light years away from the Earth, the sun never sets and never rises at this place. This could be the best world anyone can live in

Hot lava is always dripping
Elsewhere, CoRoT-7 b could be an exoplanet. It is 489 light years away from Earth, but hot lava is always dripping from it. If seen from the human point of view, it would be a very painful place, where the possibility of life is negligible. But there is a possibility of presence of aliens here also. There may also be a possibility of life on the ‘orange dwarf’ star Kepler-62. This exoplanet is about 980 light-years away from our solar system

Astrophysicist and NASA’s former scientist Lisa Kaltenegger surveyed the galaxy for her new book ‘Alien Earths’ in which she hinted at the possibility of the existence of alien life in a water world dominated by octopus-like creatures, a planet which has a dark side where the sun never rises and a laval hell where the …

Astrophysicist and NASA’s former scientist Lisa Kaltenegger surveyed the galaxy for her new book Alien Earths in which she hinted at the possibility of the existence of alien life in a water world dominated by octopus-like creatures, a planet which has a dark side where the sun never rises and a lava hell where the planet experiences molten rock rains from the sky.

The astrophysicist has documented dozens of exoplanets which orbit stars outside our solar system and have been classified as ‘Earth-like’ or ‘potentially habitable’.

In another work of hers, titled The Worlds That Shook Science, Kaltenegge said that astronomy breakthroughs made in the last three decades show that humans are living in “a completely new golden era of exploration (Another story about aliens)

NASA scientist is ‘absolutely certain’ there is alien life in our Solar System – and reveals why extraterrestrials are most likely to be hiding on Venus

The hottest planet in our solar system, Venus, has shown possible signs of life. It is covered with dense clouds of acid and has recorded a surface temperature above 475 degrees Celsius or 900 degrees Fahrenheit. And now, Dr. Michelle Thaller, a research scientist at NASA’s Goddard Space Flight Centre, has proposed a theory of possible signs of life on Venus. According to the unconventional claims of Dr Thaller, the conditions where human life is rendered impossible show signs of alien life hiding somewhere on the cloudy planet.

Controversial pieces of evidence for alien life

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 experiment mixed soil with radioactive-carbon-labelled nutrients and then tested for the production of radioactive methane gas.

The test reported a positive result. The production of radioactive methane suggested that something in the soil was metabolising the nutrients and producing radioactive gas. But other experiments on board failed to find any evidence of life, so NASA declared the result a false positive.

Despite that, one of the original scientists – and others who have since re-analysed the data – still stand by the finding. They argue that the other experiments on board were ill-equipped to search for evidence of the organic molecules – a key indicator of life.

1977, The unexplained extraterrestrial “Wow!” signal is detected by an Ohio State University radio telescope

In August 1977 an Ohio State University radio telescope detected an unusual pulse of radiation from somewhere near the constellation Sagittarius. The 37-second-long signal was so startling that an astronomer monitoring the data scrawled “Wow!” on the telescope’s printout.

What we actually know about aliens, according to science

 It came from space, hurtling at tremendous speed: a mystery object, reddish, rocky, shaped like a cigar. Its velocity was so extreme it had to have come from somewhere far away, in the interstellar realm. The astronomers in Hawaii who spotted it in 2017 named it ‘Oumuamua, Hawaiian for “a messenger from afar arriving first.”

But what was it, exactly? A comet? An asteroid?

Or maybe … an alien spacecraft?

That conjecture incited headlines, as well as eyerolls from most scientists. But here in West Virginia, the people involved in the search for extraterrestrial intelligence — commonly called SETI — decided to aim a giant radio telescope at it, just to be sure.

Aliens are having a moment. Fascination with the concept of extraterrestrial visitors isn’t new, but it has enjoyed a 21st-century efflorescence. Military pilots have seen things that look otherworldly. The Pentagon has established an office to look into the sightings. Congress has held hearings. Even NASA got into the game, training the cool logic of science onto a scorching-hot cultural topic.

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

We can’t yet say for sure whether or not aliens exist. To quote Carl Sagan: “The universe is a pretty big place. If it’s just us, it seems like an awful waste of space.” So, NASA will keep looking.

As per a Daily Mail report, the book details dozens of exoplanets that have been classified as potentially habitable or Earth-like. These include a range of exotic environments from water worlds governed by octopus-like creatures to dark planets where the sun never rises, and even hostile environments with molten rock raining from the sky. According to Dr Kaltenegger, 70 of these planets have just the right ingredients for life to exist, despite being thousands of light-years away from Earth.

Dr Kaltenegger highlights the importance of the James Webb Space Telescope (JWST) in this exploration. The JWST’s powerful capabilities allow it to capture light from these distant worlds and analyze their atmospheric compositions—a crucial step in assessing their potential for supporting life.

The JWST is the first telescope capable of capturing just enough light with its 21.3-foot mirror to explore the chemical composition of the atmosphere of other rocky worlds,” D. Kaltenegger explained to Big Think. She adds that understanding the chemical makeup encoded in the light can provide insights into the existence of extraterrestrial life.

Lisa Kaltenegger ( introduction)

Lisa Kaltenegger is an Austrian world-leading astronomer with expertise in the modeling and characterization of exoplanets and the search for life. On July 1, 2014, she was appointed Associate Professor of Astronomy at Cornell University

Kaltenegger is known for her studies of the atmospheres of extrasolar planets, especially Earth-like ones and is a pioneer in the study of the Earth as an astronomical object evolving in time. She studied the change in the Earth’s spectral fingerprint as a comparison with the evolutionary stages of Earthlike exoplanets to generate an “Alien ID Chart” – pointing out that as biology and geology change the Earth through the ages, its appearance to a telescope observing it from distant stars would also change. She also investigated the ability of future telescopes like the James Webb Space Telescope to detect evidence of life using spectral biomarkers (biosignatures) and generated the first spectra of Earth seen as a transiting exoplanet in 2009, concluding that it will be a hard problem for JWST and bigger future telescopes are needed to find signatures of life on many planets

Research Focus

Lisa Kaltenegger is a pioneer and world-leading expert in modeling habitable worlds and their light fingerprints and has spent the last decade finding new ways to spot life in the cosmos, working with NASA and ESA from Austria to the Netherlands, Harvard, Germany, and now Cornell. Prof. Kaltenegger is the author of more than 100 peer-reviewed publications

Awards and Honors

Among her international awards are the Invited Discourse lecture at the IAU General Assembly in Hawaii, the Heinz Meier Leibnitz Prize for Physics of Germany, the Doppler Prize for Innovation in Science of Austria, the Barry-Jones Inauguration Award of the Royal Astrobiology Society and Open University in Britain, and the Beatrice Tinsley Lecturer of the Royal Astronomical Society of New Zealand. Annual Reviews selected her review 2017 on “How to Characterize Habitable Worlds and Signs of Life” as part of a collection celebrating pioneering women scientists.

For thousands of years, humans have wondered whether we’re alone in the cosmos. Now, for the first time, we have the technology to investigate. But once you look for life elsewhere, you realize it is not so simple. How do you find it over cosmic distances? What actually is life?

As founding director of Cornell University’s Carl Sagan Institute, astrophysicist Lisa Kaltenegger has built a team of tenacious scientists from many disciplines to create a specialized toolkit to find life on faraway worlds. In Alien Earths, she demonstrates how we can use our homeworld as a Rosetta Stone, creatively analyzing Earth’s history and its astonishing biosphere to inform this search. With infectious enthusiasm, she takes us on an eye-opening journey to the most unusual exoplanets that have shaken our worldview – planets covered in oceans of lava, lonely wanderers lost in space, and others with more than one sun in their sky! And the best contenders for Alien Earths. We also see the imagined worlds of science fiction and how close they come to reality.

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